Forschungseinheitdetails

Publikationstyp: Aufsatz / Paper in SCI-Expanded-Zeitschrift

1. A short-term rational Krylov method for linear inverse problems (2024)
2. Curious ill-posedness phenomena in the composition of non-compact linear operators in Hilbert spaces (2024)
3. On the Type of Ill-Posedness of Generalized Hilbert Matrices and Related Operators (2024)
4. Regularization of linear inverse problems with irregular noise using embedding operators (2024)
5. A Projected Nesterov-Kaczmarz Approach to Stellar Population-Kinematic Distribution Reconstruction in Extragalactic Archaeology (2023)
6. A mathematical framework for nonlinear wavefront reconstruction in adaptive optics systems with Fourier-type wavefront sensing (2023)
7. Adaptive Learning of density ratios in RKHS (2023)
8. Characterizations of Adjoint Sobolev Embedding Operators with Applications in Inverse Problems (2023)
9. Error estimates for Golub-Kahan bidiagonalization with Tikhonov regularization for ill-posed operator equations (2023)
10. Localization of fixed dipoles at high precision by accounting for sample drift during illumination (2023)
11. Multiscale hierarchical decomposition method for ill-posed problems (2023)
12. Off-axis point spread function reconstruction for single conjugate adaptive optics (2023)
13. Subaperture-Based Digital Aberration Correction for Optical Coherence Tomography: A Novel Mathematical Approach (2023)
14. VISIONS: the VISTA Star Formation Atlas (2023)
15. A mathematical approach towards THz tomography for non-destructive imaging (2022)
16. A numerical comparison of some heuristic stopping rules for nonlinear Landweber iteration (2022)
17. Direction dependent point spread function reconstruction for multi-conjugate adaptive optics on giant segmented mirror telescopes (2022)
18. On regularization via frame decompositions with applications in tomography (2022)
19. On the tangential cone condition for electrical impedance tomography (2022)
20. Point spread function reconstruction for SOUL + LUCI LBT data (2022)
21. Estimating solution smoothness and data noise with Tikhonov regularization (2021)
22. Frame Decompositions of Bounded Linear Operators in Hilbert Spaces with Applications in Tomography (2021)
23. Lanczos-based fast blind deconvolution methods (2021)
24. Optimal-order convergence of Nesterov acceleration for linear ill-posed problems (2021)
25. Phase-contrast THz-CT for non-destructive testing (2021)
26. Subspace Recycling-Based Regularization Methods (2021)
27. A frame decomposition of the atmospheric tomography operator (2020)
28. A note on the minimization of a Tikhonov functional with ? 1-penalty (2020)
29. A simplified L-curve as error estimator (2020)
30. Convergence of Heuristic Parameter Choice Rules for Convex Tikhonov Regularisation (2020)
31. Displacement field estimation from OCT images utilizing speckle information with applications in quantitative elastography (2020)
32. Reconstruction of the High Resolution Phase in a Closed Loop Adaptive Optics System (2020)
33. Review on methods for wavefront reconstruction from pyramid wavefront sensor data (2020)
34. A new Temporal Control Approach for SCAO Systems31 (2019)
35. A note on the approximate symmetry of Bregman distances (2019)
36. Error estimates for Arnoldi-Tikhonov regularization for ill-posed operator equations (2019)
37. Heuristic parameter choice rules for Tikhonov Regularisation with weakly bounded noise (2019)
38. Penalty-based smoothness conditions in convex variational regularization (2019)
39. Semi-heuristic parameter choice rules for Tikhonov regularization with operator perturbation (2019)
40. Advanced wavefront reconstruction methods for segmented Extremely Large Telescope pupils using pyramid sensors (2018)
41. Atmospheric turbulence profiling with unknown power spectral density (2018)
42. Convergence of the gradient method for ill-posed problems (2018)
43. Lamé Parameter Estimation from Static Displacement Field Measurements in the Framework of Nonlinear Inverse Problems (2018)
44. Limited-angle acousto-electrical tomography (2018)
45. Nesterov's accelerated gradient method for nonlinear ill-posed problems with a locally convex residual functional (2018)
46. Nonlinear wavefront reconstruction methods for pyramid sensors using Landweber and Landweber-Kaczmarz iteration (2018)
47. On accelerating the regularized alternating least square algorithm for tensors (2018)
48. Point spread function reconstruction for single-conjugate adaptive optics on extremely large telescopes (2018)
49. The quasi-optimality criterion in the linear functional strategy (2018)
50. Wavefront reconstruction from nonmodulated pyramid wavefront sensor data using a singular value type expansion (2018)
51. A Mumford-Shah-type approach to simultaneous reconstruction and segmentation for emission tomography problems with Poisson statistics; online (2017)
52. A singular value type decomposition for the atmospheric tomography operator (2017)
53. Convergence Analysis of a Two-Point Gradient Method for Nonlinear Ill-Posed Problems (2017)
54. Convolution and Fourier transform based reconstructors for pyramid wavefront sensor (2017)
55. On Nesterov acceleration for Landweber iteration of linear ill-posed problems (2017)
56. On the lifting of deterministic convergence rates for inverse problems with stochastic noise (2017)
57. Towards analytical model optimization in atmospheric tomography (2017)
58. A gradient-based method of atmospheric tomography (2016)
59. Efficient reconstruction method for ground layer adaptive optics with mixed natural and laser guide stars (2016)
60. Optimal Mirror Deformation for multi conjugate Adaptive Optics Systems (2016)
61. An alternating iterative minimisation algorithm for the double-regularised total least square functional (2015)
62. Convex Tikhonov regularization in Banach spaces: new results on convergence rates (2015)
63. Generalized Smart Evolving Fuzzy Systems (2015)
64. On fractional Tikhonov Regularization (2015)
65. Projection methods for ill-posed problems revisited (2015)
66. The method of the approximate inverse for atmospheric tomography (2015)
67. Wavelet methods for a weighted sparsity penalty for region of interest tomography (2015)
68. A global minimization algorithm for Tikhonov functionals with sparsity constraints (2014)
69. A stochastic convergence analysis for Tikhonov regularization with sparsity constraints (2014)
70. Convergence rates for Kaczmarz type regularization methods (2014)
71. Efficient iterative tip/tilt reconstruction for atmospheric tomography (2014)
72. Finite element-wavelet hybrid algorithm for atmospheric tomography (2014)
73. Krylov Subspace Recycling for Sequences of Shifted Linear Systems (2014)
74. Measurement and decomposition of periodic flow structures downstream of a test turbine (2014)
75. Simultaneous estimation of mass and aerodynamic rotor imbalances for wind turbines (2014)
76. A Double Regularization Approach for Inverse Problems with Noisy Data and Inexact Operator (2013)
77. A new cumulative wavefront reconstructor for the Shack-Hartmann sensor (2013)
78. A numerical study of heuristic parameter choice rules for total variation regularization (2013)
79. An H^1 Kaczmarz reconstructor for atmospheric tomography (2013)
80. Discretization independent convergence rates for noise level-free parameter choice rules in the regularization of ill-conditioned problems (2013)
81. New Algorithms for tensor decomposition based on a reduced functional (2013)
82. On the interplay of basis smoothness and specific range conditions occurring in sparsity regularization (2013)
83. Parameter identification in a random environment exemplified by a multiscal model of crystal growth (2013)
84. Preprocessed cumulative reconstructor with domain decomposition: a fast wavefront reconstruction method for pyramid wavefront sensor (2013)
85. Regularization properties of Mumford-Shah type functionals with perimeter and norm constraints for linear ill-posed problems (2013)
86. Some Convergence results on the regularized Alternating Least Squares method for tensor decomposition (2013)
87. The Kaczmarz algorithm for multiconjugated adaptive optics with laser guide stars Journal of the Optical Society of America (2013)
88. A Kaczmarz type reconstructor for MCAO data (2012)
89. A singular value decomposition for the Shack-Hartmann based wavefront reconstruction (2012)
90. Estimation of biogeochemical rates from concentration profiles: a novel inverse method (2012)
91. Numerical methods for the design of gradient-index optical coatings (2012)
92. On the Shack-Hartmann based wavefront reconstruction: stability and convergence rates of finite-dimensional approximations (2012)
93. On the optimization of a Tikhonov functional with non-convex sparsity constraints (2012)
94. Convergence Analysis for minimization based noise level-free parameter choice rules for linear ill-posed problems (2011)
95. Cumulative wavefront reconstructor for the Shack-Hartmann sensor (2011)
96. On the calibration of local jump-diffusion asset price models (2011)
97. The algebra of hexagonal numbers (2011)
98. A Mumford-Shah approach for tomography (2010)
99. A Mumford-Shah level-set approach for the inversion and segmentation of SPECT / CT data (2010)
100. A proximal point method in nonreflexive Banach spaces (2010)
101. Convergence rates for regularization with sparsity constraints (2010)
102. Discretization of variational regularization in Banach spaces (2010)
103. Improved and extended results for enhanced convergence rates of Tikhonov regularization in Banach spaces (2010)
104. Mass and Aerodynamic Imbalance Estimates of Wind Turbines (2010)
105. Morozov´s discrepancy principle for Tikhonov-type functionals with nonlinear operators (2010)
106. On the ill-posedness and convergence of the Shack-Hartmann based wavefront reconstruction (2010)
107. Regularization of linear operator equations by Perimeter constraints (2010)
108. SparseFIS: Data-Driven Learning of Fuzzy Systems With Sparsity Constraints (2010)
109. Bounded variation regularization using line sections (2009)
110. Reconstruction of shapes and impedance functions using few far-field measurements (2009)
111. Recovering temperature dependence of heat transfer coefficient in electronic circuits (2009)
112. The heat transform and its use in thermal identification problems (2009)
113. On the multilevel preconditioning of Crouzeix-Raviart elliptic problems (2008)
114. The Quasi-Optimality Criterion for Classical Inverse Problems (2008)
115. On regularization methods based on dynamic programming techniques (2007)
116. Denoising by BV-duality (2006)
117. On decoupling of volatility smile and term structure in inverse option pricing (2006)
118. Semiiterative regularization in Hilbert Scales (2006)
119. Deblurring and Denoising of images by nonlocal functionals (2005)
120. A Novel Mixed Eulerian-Lagrangian Finite-Element Method for Steady-State Hot Rolling Processes (2003)
121. Extension of the concept of material objectivity to mixed Eulerian-Lagrangian reference systems (2003)
122. Identification of the diffusion coefficientin a one-dimensional parabolic equation (2000)
123. A numerical investigation of Newton-type methods applied to a parabolic inverse problem (1999)

Publikationstyp: Aufsatz / Paper in SSCI-Zeitschrift

1. A Conjugate-Gradient Approach to the Parameter Estimation Problem of Magnetic Resonance Advection Imaging (2020)
2. Real-time adaptive optics with pyramid wavefront sensors: part I. A theoretical analysis of the pyramid sensor model (2019)
3. Real-time adaptive optics with pyramid wavefront sensors: part II. Accurate wavefront reconstruction using iterative methods (2019)
4. A semi-blind regularization algorithm for inverse problems with application to image deblurring (2018)

Publikationstyp: Aufsatz / Paper in sonstiger referierter Fachzeitschrift

1. High fidelity adaptive mirror simulations with reduced order models (2024)
2. Predictive modelling of critical variables for improving HVOF coating using gamma regression models (2024)
3. Accelerated photosynthesis routine in LPJmL4 (2023)
4. Quantitative Optical Coherence Elastography: A novel Intensity-based Inversion Method versus Strain-based Reconstructions (2022)
5. Robust and bias-free localization of individual fixed dipole emitters achieving the Cramér Rao bound (2022)
6. An augmented wavelet reconstructor for atmospheric tomography (2021)
7. Retinal adaptive optics imaging with a pyramid wavefront sensor (2021)
8. The Hausdorff Moment Problem in the light of ill-posedness of type I (2021)
9. Optimization of the shape (and topology) of the initial conditions for diffusion parameter identification (2019)
10. Frequency-dependent reconstruction of imbalances (2018)
11. Solution of coupled differential equations arising from imbalance problems (2017)
12. On data space selection and data processing for parameter identifciation in a reaction diffusion model based on FRAP experiments (2015)
13. A block MINRES algorithm based on the band Lanczos method (2014)
14. On convergence rates for quasi-solutions of ill-posed problems (2014)
15. On the smoothness of solutions of a special Neumann problem on nonsmooth domains (2014)
16. A Mumford?Shah-Like Method for Limited Data Tomography with an Application to Electron Tomography (2011)
17. Subspaces of stability in the Cauchy-Problem for the Helmholtz equation (2011)
18. Modified Tikhonov regularization for nonlinear ill-posed problems in Banach spaces (2010)
19. On the degree of ill-posedness for linear problems with non-compact operators (2010)
20. Wavelet-Based Multilevel Methods for Linear Ill-Posed Problems (2010)
21. On enhanced convergence rates for Tikhonov regularization of nonlinear ill-posed problems in Banach spaces (2009)
22. Approximate solution of nonlinear inverse problems by fixed-point iteration (2008)
23. Estimation of local temperature dependent heat transfer coefficient for dynamic thermal analysis of electronic circuits (2008)
24. On the convergence of the quasi-optimality criterion for (iterated) Tikhonov regularization (2008)
25. The convergence of a new heuristic parameter selection criterion for general regularization methods (2008)
26. The effect of a minimum angle condition on the preconditioning of the pivot block arising from 2-level-splittings of Crouzeix-Raviart FE-spaces (2008)
27. Calibration problems - an inverse problem view (2007)
28. Computation of discontinuous solutions of 2D linear ill-posed integral equations via adaptive grid regularization (2007)
29. Convergence rate for the Bayesian inversion theory (2007)
30. Generalized aggregation-based multilevel preconditioning of Crouzeix-Raviart FEM elliptic problems (2007)
31. Identification of a temperature dependent heat conductivity via adaptive grid regularization (2007)
32. Identification of the local speed function in a Levy model for option pricing (2007)
33. Inverse problems related to ion channel selectivity (2007)
34. Regularization by dynamic programing (2007)
35. Solution of ill-posed problems via adaptive grid regularization: convergence analysis (2007)
36. Surrogate functionals and thresholding for inverse interface problems (2007)
37. The expectation-maximization algorithm for ill-posed integral equations: a convergence analysis (2007)
38. Convergence of projected iterative regularization methods for nonlinear problems with smooth solutions (2006)
39. Estimation of discontinuous solutions of ill-posed problems via adaptive grid regularization (2006)
40. Inverse bifurcation analysis: application to simple gene systems (2006)
41. On regularization methods based for inverse problems of dynamic type (2006)
42. Optimal control as a regularization method for ill-posed problems (2006)
43. Convergence Rates in the Prokhorov-metric for Assessing Uncertainty in ill-posed Problems (2005)
44. Convergence rate analysis of a derivative free Landweber iteration for parameter identification in certain elliptic PDEs (2005)
45. Global uniqueness and Hölder stability for recovering a nonlinear source term in a parabolic equation (2005)
46. Natural linearization for the identification of nonlinear heat transfer laws (2005)
47. Numerical analysis of a new Eulerian-Lagrangian finite element method applied to steady-state hot rolling processes (2005)
48. Preconditioning Landweber iteration in Hilbert scales (2005)
49. Regularized Greedy Algorithms for Network Training with Data Noise (2005)
50. Tikhonov regularization applied to the inverse problem of option pricing: Convergence analysis and rates (2005)
51. A comparison of the Landweber method and the Gauss-Newton method for an inverse parabolic boundary value problem (2004)
52. A parameter identification problem of mixed type related to the manufacture of car windshields (2004)
53. Identification of a temperature dependent heat conductivity from single boundary measurements (2004)
54. Incorporating topological derivatives into level sets methods (2004)
55. Level set methods for geometric inverse problems in linear elasticity (2004)
56. On inverse problems for semiconductor equations (2004)
57. A derivative-free Landweber iteration for parameter identification in certain elliptic PDEs (2003)
58. Analysis of Tikhonov Regularization for Function Approximation by Neural Networks (2003)
59. Identification of a temperature dependent heat conductivity from single boundary measurements (2003)
60. Mean value iterations for nonlinear elliptic Cauchy problems (2003)
61. Parameter identification by regularization for surface representations via the moving grid approach (2003)
62. The influence of the equation type on iterative parameter identification problems which are elliptic or hyperbolic in the parameter (2003)
63. Convergence rates of the continuous regularized Gauss-Newton method (2002)
64. Identification of a temperature dependent heat conductivity by Tikhonov regularization (2002)
65. Regularized data-driven construction of Fuzzy controllers (2002)
66. A Mann iterative method for elliptic Cauchy problems (2001)
67. A level set method for inverse problems (2001)
68. Error bounds for approximation with neural networks (2001)
69. Estimation of discontinuous parameters of elliptic partial differential equations by regularization for surface representations (2001)
70. Identification of doping profiles in semiconductor devices (2001)
71. Iterative Regularization of a Parameter IdentificationProblem occurring in Polymer Crystallization (2001)
72. Mathematical modelling and simulation of non-isothermal crystallization of polymers (2001)
73. Modelling multi-dimensional crystallization of polymers in interaction with heat transfer (2001)
74. Modelling of polymer crystallization in temperature fields (2001)
75. On shape optimisation of optical waveguides (2001)
76. Regularization for surface representations of discontinuous solutions of linear ill-posed problems (2001)
77. Regularization methods for blind deconvolution and blind source separation problems (2001)
78. A Novel Approach in Simulating the Hot Rolling Process (2000)
79. A multi-level algorithm for generating 3D ultrasound panorama images (2000)
80. A posteriori error estimates for the solution of nonlinear ill-posed operator equations (2000)
81. Fast parallel algorithms for a broad class of nonlinear variational diffusion approaches (2000)
82. Identification of heat transfer functions in continuous casting of steel by regularization (2000)
83. Models for image interpolation based on the optical flow (2000)
84. Nonstationary iterated Tikhonov-Morozov method and third order differential equations for the evaluation of unbounded operators (2000)
85. Numerical differentiation as a simple example for an inverse problem (2000)
86. On Landweber iteration for nonlinear ill-posed problems in Hilbert scales (2000)
87. On regularization and diffusion filtering (2000)
88. Regularization of exponentially ill-posed problems (2000)
89. Scale-space properties of nonstationary iterative regularization methods (2000)
90. Stability and convergence analysis of Tikhonov regularization for parameter identification in a parabolic equation (2000)
91. The effects of yield stress variation on uniaxial exchange flows of two Bingham fluids in a pipe (2000)
92. Training neural networks with noisy data as an ill-posed problem (2000)
93. Uniqueness and non-uniqueness in the steady displacement of two visco-plastic fluids (2000)
94. An adaptive strategy for updating the damping parameters in an iteratively regularized Gauss-Newton method (1999)
95. Convergence rates of the Hilbert uniqueness method via Tikhonov regularization (1999)
96. Error analysis of an equation error method for the identification of the diffusion coefficient in a quasilinear parabolic differential equation (1999)
97. Identification of discontinuous parameters by regularization for curve representations (1999)
98. Inverse problems related to crystallization of polymers (1999)
99. On convergence rates of some iterative regularization methods for an inverse problem for a nonlinear parabolic equation connected with continuous casting of steel (1999)
100. Optimal sizing for a class of nonlinearly elastic materials (1999)
101. Recovering discrete and continuous parts of the solution of linear ill-posed problems by Tikhonov regularization (1999)
102. A Newton-type method for a transmission problem in inverse scattering (1998)
103. A convergence analysis of iterative methods for the solution of nonlinear ill-posed problems under affinely invariant conditions (1998)
104. A modified Landweber iteration for solving parameter estimation problems (1998)
105. A multi-level algorithm for the solution of moment problems (1998)
106. A posteriori parameter choice strategies for some Newton type methods for the regularization of nonlinear ill-posed problems (1998)
107. An iterative multi level algorithm for solving nonlinear ill-posed problems (1998)
108. Convergence rates of a regularized Newton method in sound-hard inverse scattering (1998)
109. Existence and uniqueness of solutions of the equilibrium equations for a class of nonlinearly elastic materials (1998)
110. Least squares and bounded variation regularization with nondifferentiable functionals (1998)
111. Local ill-posedness and source conditions of operator equations in Hilbert spaces (1998)
112. On broyden's method for the regularization of nonlinear ill-posed problems (1998)
113. On the Landweber iteration for the solution of a parameter identification problem in a hyperbolic partial differential equation of second order (1998)
114. Regularization for curve representations: Uniform convergence for discontinuous solutions of ill-posed problems (1998)
115. Tikhonov regularization for an inverse source problem for a coupled system of reaction-diffusion equations (1998)
116. Uniaxial exchange of two bingham fluids in a cylindrical duct (1998)
117. Logarithmic convergence rates of the iteratively regularized Gauss-Newton method for an inverse potential and an inverse scattering problem (1997)
118. On convergence rates for the iteratively regularized Gauss-Newton method (1997)
119. On converse and saturation results for Tikhonov regularization of linear ill-posed problems (1997)
120. Online simulation of the blast furnace (1997)
121. Optimal cooling strategies in continuous casting of steel with variable casting speed (1997)
122. Some Newton type methods for the regularization of nonlinear ill-posed problems (1997)
123. Spraying the perfect billet (1997)
124. A convergence analysis of a method of steepest descent and a two-step algorithm for nonlinear ill-posed problems (1996)
125. An application of Tikhonov regularization to phase retrieval (1996)
126. Design of a 3D-reflector for the near field problem: A nonlinear inverse problem (1996)
127. Inverse Wärmeleitungsprobleme in der Stahlindustrie (1996)
128. Mathematisches Modell und numerische Simulation der Vorgänge im Hochofen (1996)
129. Non-negative differentially constrained entropy-like regularization (1996)
130. On the Landweber iteration for nonlinear ill-posed problems (1996)
131. A Convergence Rate Result for a Steepest Descent Method and a Minimal Error Method for the Solution of Nonlinear Ill-Posed Problems (1995)
132. A convergence analysis of the {Landweber iteration for nonlinear ill-posed problems (1995)
133. Optimal strategies for the cooling of steel strips in hot strip mills (1995)
134. Weakly closed nonlinear operators and parameter identification in parabolic equations by Tikhonov regularization (1994)
135. Tikhonov regularization of nonlinear ill-posed problems in Hilbert scales (1992)
136. Finite-dimensional approximation of Tikhonov regularized solutions of nonlinear ill-posed problems (1990)
137. On the numerical solution of a 3-D magnetostatic scattering problem by boundary integral methods (1990)
138. Convergence rates for Tikhonov regularization of nonlinear ill-posed problems (1989)
139. Regularization of ill-posed problems: optimal parameter choice in finite dimensions (1989)
140. Tikhonov regularisation for non-linear ill-posed problems: optimal convergence rates and finite-dimensional approximation (1989)
141. A parameter choice strategy for (iterated) Tikhonov regularization of ill-posed problems leading to superconvergence with optimal rates (1988)
142. A variant of finite-dimensional Tikhonov regularization with a-posteriori parameter choice (1988)
143. An a Posteriori Parameter Choice for Tikhonov Regularization in Hilbert Scales Leading to Optimal Convergence Rates (1988)
144. An a-posteriori parameter choice for Tikhonov regularization in the presence of modelling error (1988)
145. Convergence of a general projection method for an operator equation of the first kind (1988)
146. Convergence rates for Tikhonov regularization in finite-dimensional subspaces of Hilbert scales (1988)
147. On the regularization of a class of nontransferable differential-algebraic equations (1988)
148. Tikhonov regularization of ill-posed linear operator equations on closed convex sets (1988)
149. When do Sobolev spaces form a Hilbert scale? (1988)
150. Finite-dimensional approximation of constrained Tikhonov-regularized solutions of ill-posed linear operator equations (1987)
151. Numerical realization of an optimal discrepancy principle for Tikhonov regularization in Hilbert scales (1987)
152. Eine Variante der Marti-Methode zur Lösung inkorrekt gestellter linearer Integralgleichungen, die optimale Konvergenzraten liefert (1986)
153. An improved version of Marti's method for solving ill-posed linear integral equations (1985)

Publikationstyp: Aufsatz / Paper in nicht-referierter Fachzeitschrift

1. Performance of an iterative wavelet reconstructor for the Multi-conjugate Adaptive Optics RelaY of the Extremely Large Telescope (2022)
2. On Tikhonov-type regularization with approximated penalty terms (2021)
3. Optimal convergence rates for inexact Newton regularization with CG as inner iteration (2020)
4. Augmented GMRES-type versus CGNE methods for the solution of linear ill-posed problems (2019)
5. A new gradient method for ill-posed problems (2018)
6. On the parameter estimation problem of magnetic resonance advection imaging (2018)
7. The first 100 years of the Radon transform (2018)
8. Simulation Results for a finite element-based cumulative Reconstructor (2017)
9. A note on optimal rates for Lavrentiev regularization with adjoint source conditions (2016)
10. Some generalizations for Landweber iteration for nonlinear ill-posed problems in Hilbert scales (2016)
11. On the Regularizing Properties of a Full Multigrid Method for Ill-Posed Problems (2001)
12. Parameter Estimation in a Hyperbolic Partial Differential Equation with a Focused Source as Initial Value (1999)

Publikationstyp: Aufsatz / Paper in Tagungsband (referiert)

1. Enhancing Predictive Quality in HVOF Coating Technology: A Comparative Analysis of Machine Learning Techniques (2024)
2. HubA Frame Decomposition of the Funk-Radon Transform (2023)
3. Towards the MICADO@ELT PSF-R with simulated and real data (2023)
4. Parallel Implementation of an iterative solver for atmospheric tomography (2022)
5. Challenges for Optical Flow Estimates in Elastography (2021)
6. MICADO PSF-Reconstruction work package description (2020)
7. On the Singular Value Decomposition of n-Fold Integration Operators (2020)
8. Dealing with spiders on ELTs: using a Pyramid WFS to overcome residual piston effects (2018)
9. The MICADO first light imager for the ELT: overview, operation, simulation (2018)
10. Wavefront reconstruction for ELTsized telescopes with pyramid wavefront sensors (2018)
11. Fast algorithm for wavefront reconstruction in XAO/SCAO with pyramid wavefront sensor (2014)
12. Iterative reconstruction methods in atmospheric tomography: FEWHA, Kaczmarz and Gradient-based algorithm (2014)
13. Surface Generation Process with Consideration of the Balancing State in Diamond Machining (2012)
14. Modelling pattern formation in plants (2011)
15. An iterative method with general convex fidelity term for image restoration (2010)
16. Simulation of Process Machine Interaction for Ultra Precision Turning (2010)
17. Swamp Reducing Technique for Tensor Decomposition (2008)
18. Inverse bifurcation analysis of a model for the mammalian G1/S regulatory module (2007)
19. Modelling and numerics for the transient simulation of the blast furnace process (2006)
20. FLIM - A Variant of FEM based on Line Integration (2005)
21. Nonlinear inverse problems: theoretical aspects and some industrial applications (2005)
22. On the estimation of discontinuous solutions of parameter identification problems (2005)
23. An Eulerian-Lagrangian Concept for the Numerical Simulation of Flat Steady-State Hot Rolling Processes (2004)
24. Fast Numerical Simulation of 3D Steady-State Hot Rolling Processes by Utilizing Diffpack and Deform (2004)
25. Identification of parameters in polymer crystallization, semiconductor models and elasticity via iterative regularization methods (2004)
26. Parameter Identification in Industrial Problems via Iterative Regularization Methods (2004)
27. Estimation of discontinuous solutions of ill-posed problems by regularization for surface representations: numerical realization via moving grids (2003)
28. Parameter identification in industrial problems via iterative regularization methods (2003)
29. Recovering Volatility in the Black-Scholes Model (2003)
30. Data-Driven Construction of Sugeno Controllers: Analytical Aspects and New Numerical Methods (2001)
31. Design of 3D-reflectors for near field and far field problems (1997)
32. Reconstruction of discontinuous solutions from blurred data (1997)
33. On converse and saturation results for regularization methods (1994)
34. The iterative solution of a nonlinear inverse problem from industry: Design of reflectors (1994)
35. Convergence rates for Tikhonov regularization of implicitly defined nonlinear inverse problems with an application to inverse scattering (1993)
36. Modified Tikhonov regularization for nonlinear ill-posed problems leading to optimal convergence rates (1992)
37. Reflector design as an inverse problem (1991)
38. On an inverse problem from magnetostaticseng (1990)
39. Tikhonov regularization of nonlinear differential-algebraic equations (1990)
40. On projection methods for solving linear ill-posed problemsneub (1987)
41. On the regularization of linear differential-algebraic equations (1987)
42. Optimal parameter choice for ordinary and iterated Tikhonov regularizationneub (1987)
43. Optimal discrepancy principles for the Tikhonov regularization of integral equations of the first kind (1985)

Publikationstyp: Aufsatz / Paper in Tagungsband (nicht-referiert)

1. Feasibility of standard and novel solvers in atmospheric tomography for the ELT (2019)
2. Kernel formalism applied to Fourier-based wave front sensing in presence of residual phases (2019)
3. Model-based wavefront reconstruction for the pyramid sensor tested on the LOOPS bench (2019)
4. Overview of PSF determination techniques for adaptive-optics assisted ELT instruments (2019)
5. The ?Quad sensor: a new Fourier-based wave front sensor derived from the 4 quadrants coronagraph (2019)
6. MICADO: first light imager for the E-ELT (2016)
7. Investigation of circuit thermal models based on the transient thermal response spectra (2008)
8. Determination of piezoelectric material parameters using a combined measurement and simulation technique (2001)
9. A matrix analytical approach to orthonormal wavelets (2000)
10. Identification of material tensors for piezoelectric materials (2000)
11. Inverse Problems and their regularization (2000)
12. Prediction of daily power demand (2000)
13. Regularization Methods for Solving Inverse Problems (2000)
14. Compression of 3D Ultrasound Data with Wavelets (1999)
15. Modelling and parameter-identification in non-isothermal crystallization of polymers (1999)
16. Regularization methods for nonlinear ill-posed problems with applications to phase reconstruction (1997)
17. Maximum entropy regularization of nonlinear ill-posed problems (1996)
18. On the estimation of interfaces from boundary measurements (1996)

Publikationstyp: Aufsatz / Paper in Sammelwerk (referiert)

1. Tomographic Reconstruction for Single Conjugate Adaptive Optics (2021)
2. The Kurdyka-Lojasiewicz inequality as regularity condition (2020)
3. FRAP and FLIP: Two sides of the same coin ? (2015)
4. A Mosco stability theorem for generalized proximal mappings (2010)
5. Sparse recovery in inverse problems (2010)
6. Regularizatoin of inverse problems and its application to the calibration of option price models (2009)
7. Tuning of Fuzzy Systems as an Ill-Posed Problem (2002)

Publikationstyp: Aufsatz / Paper in Sammelwerk (nicht-referiert)

1. Industrial Mathematics and Medical Imaging (2017)
2. Mathematical models for polymer crystallization processes (2003)
3. Inverse doping problems for semiconductor devices (2001)
4. Convergence rates results for iterative methods for solving nonlinear ill-posed problems (2000)
5. Stable approximation of nondifferentiable optimization problems with variational inequalities (1997)

Publikationstyp: Beitrag in Enzyklopädie/Lexikon

1. Regularization of Inverse Problems (2015)

Publikationstyp: Monographie (Erstauflage)

1. Iterative Regularization Methods for Nonlinear Ill-Posed Problems (2008)
2. Integralgleichungen (1997)
3. Regularization of Inverse Problems (1996)

Publikationstyp: Tagungsband Mitherausgeberschaft (Erstauflage)

1. Survey on Solution Methods for Inverse Problems (2000)
2. Inverse Problems in Medical Imaging and Nondestructive Testing (1997)
3. Inverse Problems in Geopysical Applications (1996)

Publikationstyp: Wissenschaftliches Sammelwerk Mitherausgeberschaft (Erstauflage)

1. Large Scale Inverse Problems (2013)

Publikationstyp: Forschungsbericht: geförderte Forschung (Bund/Land/Gemeinden)

1. A finite element-wavelet hybrid algorithm for atmospheric tomography (2013)
2. A frequency dependent preconditioned wavelet method for atmospheric tomography (2013)
3. AO3: Final Report (2013)

Publikationstyp: Forschungsbericht: geförderte Forschung (sonstige überwieg. aus öff. Hand)

1. Regularized Optimization of Fuzzy Controllers (2000)

Publikationstyp: Anderer Forschungsbericht / Technischer Bericht

1. Convergence results for the Bayesian inversion theory (2007)
2. Generalized aggregation-based multilevel preconditioning of Crouzeix-Raviart FEM elliptic problems (2006)
3. Preconditioning CGNE-iteration for inverse problems (2006)
4. Study on mixing criteria and on the effect of the stirrer geometry on the mixing of glass (2006)
5. Y-scale regularization (2006)
6. A real-time Solution for an Inverse Cauchy Problem in Cardiology (2005)
7. Accelerated Newton-Landweber iterations for regularizing nonlinear inverse problems (2005)
8. Learning a Function from Noisy Samples at a Finite Sparse Set of Points (2005)
9. Saddle point formulation for a cartoon-texture decomposition (2005)
10. Computing Smooth Solutions with an Adaptive Greedy Algorithm (2004)
11. Convergence Rates in the Prokhorov-metric for assessing uncertainty in ill-posed problems (2004)
12. Regularized Greedy Algorithms for Network Training with Data Noise (2003)
13. A multi-grid method with a priori and a posteriori level choice for the regularization of nonlinear ill-posed problems (2002)
14. Growth Fronts of First-Order Hamilton-Jacobi Equations (2002)
15. Stochastic and deterministic simulation of nonisothermal crystallization of polymers (2002)
16. Iterative regularization of parameter identification problems by SQP methods (2001)
17. Numerical approximation of an SQP-type method for parameter identification (2001)
18. Regularization of parameter estimation by adaptive discretization using refinement and coarsening indicators (2001)
19. Regularized optimization of fuzzy controllers (2001)
20. A fast and robust algorithm for 2D/3D panorama ultrasound data (2000)
21. About the variations of the shape Hessian and sufficient conditions of stability for critical shapes (2000)
22. Identification of piezoelectric material parameters (2000)
23. V-cycle convergence of some multigrid methods for ill-posed problems (2000)
24. Each BV-function is representable by an H1-curve (1999)
25. On a multigrid method for ill-posed problems (1999)
26. A new approach for the design optimization of a multilayer steel seal (1998)
27. Determining the inner contour of a furnace from temperature measurements (1998)
28. Wavelet compression of 3D ultrasound data (1998)
29. Birth-and-growth stochastic processes modelling polymer crystallization (1997)
30. On the stability of sizing optimization problems for a class of nonlinearly elastic materials (1997)
31. Stable evaluation of differential operators and linear and nonlinear multi-scale filtering (1997)
32. The density of the n-facets of an incomplete Johnson-Mehl tessellation (1997)
33. Investigations into a continuous casting process (1990)

Publikationstyp: Habilitationsschrift

1. Fast Wavefront Reconstruction Algorithms for eXtreme Adaptive Optics (2014)

Publikationstyp: Dissertation

1. Fast Gradient-Based Iterative Regularization Methods for Nonlinear Ill-Posed Problems - Theory and Applications, Dissertation (2018)
2. Model-based wavefront reconstruction approaches for pyramid wavefront sensors in Adaptive Optics, Dissertation (2018)
3. Preconditioning iterative regularization methods in Hilbert scales (2005)
4. A Derivative Free Landweber Method for Parameter Identification in Elliptic Partial Differential Equations with Application to the Manufacture of Car Windshields (2003)
5. Steady-State Simulation of Flat Rolling Processes - A Novel Mixed Eulerian-Lagrangian Approach with Applications to Plane Strain Problems (2002)
6. Some Newton type methods for the solution of nonlinear ill-posed problems (1996)

Publikationstyp: Diplom- oder Masterarbeit

1. Iterative Regularization and Training of Neural Networks (2003)
2. Identification of Volatility Smiles in the Black Scholes Equation via Tikhonov Regularization (2002)
3. Identification of a Temperature Dependent Heat Conductivity by Tikhonov Regularization (2000)
4. Optimierung chemischer Anlagen mit Box Constraints (Schwerpunkt: Destillationskolonnen) (1988)

Publikationstyp: Preprint

1. Estimating solution smoothness and data noisewith Tikhonov regularization (2021)
2. Real-time implementation of an iterative solver for atmospheric tomography (2020)
3. Block Krylov subspace methods for shifted systems with different right-hand sides (2014)
4. Stagnation of block GMRES and its relationship to block FOM (2014)
5. Two recursive GMRES-type methods for shifted linear systems with general preconditioning (2014)
6. Mathematics and implementation details of a block MINRES algorithm (2013)
7. Recursive Algebraic Modelling of Gene Signalling, Communication and Switching (2008)
8. The Finite Line Integration Method (FLIM) - A Fast Variant of Finite Element Modelling (2007)
9. An agglomeration-based multilevel-topology concept with application to 3D-FE meshes (2004)

Publikationstyp: Sonstige

1. Densities of n-facets of incomplete Johnson-Mehl tessellations generated by inhomogeneous birth-and-growth processes (2002)
2. A saddle point variational formulation for projection-regularized parameter identification (2001)
3. A projection-regularized Newton method for nonlinear ill-posed problems and its application to parameter identification problems with finite element discretization (2000)
4. Regularization by projection with a posteriori discretization level choice for linear and nonlinear ill-posed problems (2000)
5. The construction of orthonormal wavelets using symbolic methods and a matrix analytical approach for wavelets on the interval (2000)
6. Turbulente Strömungs-, Temperatur- sowie freie Oberflächenberechnungen zur Stranggußkokille (1990)

Vortragstyp: Eingeladener Vortrag an anderen Institutionen

1. Fast algorithms for ELT Adaptive Optics, Paris (14.04.2014)
2. Convergence of heuristic parameter choice rules (10.02.2010)
3. Mathematical Modelling and Numerical Simulation of Industrial Processes: Experiences and New Possibilities for Cooperation, VAI, Siemens, Linz (28.09.2006)
4. Iterative Methods for the Regularization of Nonlinear Inverse Problems, Fraunhofer-Institut Kaiserslautern (15.09.2006)
5. Regularization of Nonlinear Inverse Problems: Convergence Analysis, New Challenges, Wichita State University Wichita (01.09.2006)
6. Regularization of Nonlinear Inverse Problems: Convergence Analysis, New Challenges, International Conference on Inverse Problems Sapporo (04.07.2006)
7. Hot Stuff: From Iron and Steel Making via Inverse Problems to Finance, ICIAM Board Meeting, Shanghai, China Shanghai (26.05.2006)
8. Mathematics and Industry – A Relation for Mutual Benefit: The Austrian Experience, Workshop in Applied Mathematics, Experiences and Visions for Industrial Mathemat Bedlewo (27.04.2006)
9. Mathematics and Industry – a Relationship for Mutual Benefit, 3rd European Conference on Structural Control (ECSC) Wien (28.02.2006)
10. Iterative Regularization Methods for Nonlinear Inverse Problems for Partial Differential Equations, TX Joint Mathematics Meetings San Antonio, Texas (12.01.2006)
11. Forschungsleistungen in Leistungsvereinbarungen: Wie lässt sich Forschung wissenschaftsadäquat definieren?, Workshop “Universitäre Leistungsvereinbarungen” Baden bei Wien (16.12.2005)
12. Mathematics as Basis for Software in Engineering and Finance, Österreich Innovativ, Expertensendung nach Israel Tel Aviv (21.11.2005)
13. Hot Stuff: From Iron Steel Making via Inverse Problems to Finance, SCOMA Conference Finnland Finnland (04.10.2005)
14. Industrial Mathematics in Europe – Experiences and Visions, ÖMG-Kongress Klagenfurt Klagenfurt (19.09.2005)
15. Some Identification Problems in Finance, PDE and Mathematical Finance Conference Stockholm (18.08.2005)
16. 1. Hot Stuff: From Iron and Steel Making via Inverse Problems to Finance 2. Academia and Business - The Industrial Mathematics Structure in Linz, CAIMS 2005 Kanada (15.06.2005)
17. Convergence in Distribution of Regularization Methods for the Stable Solution of Linear Ill-Posed Operator Equations, Inverse Problems Reunion Conference, IPAM, UCLA IPAM, UCLA (07.06.2005)
18. Convergence in Distribution of Regularization Methods for the Stable Solution of Linear Ill-Posed Operator Equations, AMS-Meeting Delaware (04.04.2005)
19. A parameter identification problem of mixed type related to the manufacture of car windshields, IMPA Rio de Janeiro (10.02.2004)

Vortragstyp: Hauptvortrag / Eingeladener Vortrag auf einer Tagung

1. A Kaczmarz approach to Galactic Archaeology, Belgrad (07.06.2022)
2. A Kaczmarz approach to Galactic Archaeology, Dublin (28.04.2022)
3. Heuristic parameter choice rules in inverse problems, Santa Margherita di Pula (29.05.2019)
4. Efficient minimization of Tikhonov functionals with a sparsity constraint (ETNA 25), Santa Margherita di Pula (27.05.2019)
5. Wavefront reconstruction from pyramid sensor data, Shanghai (13.10.2018)
6. Heuristic parameter choice rules with operator perturbations, TU Chemnitz (28.09.2018)
7. Introduction into the concepts of the finite element methods, Linz (05.07.2018)
8. Arnoldi-Tikhonov regularization for ill-posed operator equations (22.05.2018)
9. Direct piston reconstruction approaches to control segmented ELT-mirrors, Padua (04.10.2017)
10. Inverse Problems in Adaptive Optics, Hangzhou (29.05.2017)
11. On the compression of atmospheric layer profiles to fewer layers for tomographic reconstruction (27.03.2017)
12. The Inverse Problem of Wavefront Reconstruction from Pyramid Wavefront Sensor Data, Marseille (04.10.2016)
13. Inverse Problems in Astronomical Adaptive Optics, Strobl (28.09.2016)
14. The Inverse Problem of Wavefront Reconstruction from Pyramid Sensor Data, Chemnitz (23.09.2016)
15. Fast tomographic Reconstructors for ELT-sized wide field of view AO Systems, Edinburgh (01.07.2016)
16. Inverse Problems in Adaptive Optics Systems for Extremely Large Telescopes (24.05.2016)
17. Inverse Problems in Adaptive Optics, London (12.12.2014)
18. Mathematik für Riesenteleskope, Linz (20.10.2014)
19. Reconstruction and segmentation of piecewise constant functions from tomography data, Helsinki, University of Helsinki (14.10.2014)
20. Wavelet methods for a weighted sparsity penalty for region of interest tomography, Stuttgart (09.10.2014)
21. Mathematical Methods and Algorithms for E-ELT Adaptive Optics, Wien Wirtschaftskammer (01.10.2014)
22. Reconstructing piecewise constant functions from tomography data, Strobl, Bundesinstitut für Erwachsenenbildung (24.09.2014)
23. Applied Inverse Problems in Industry, Bristol (27.08.2014)
24. Fast algorithm for wavefront reconstruction in XAO/SCAO with pyramid wavefront sensor, Montreal (23.06.2014)
25. Iterative reconstruction methods in atmospheric tomography: FEWHA, Kaczmarz and Gradient-based algorithm, Montreal (23.06.2014)
26. On convergence rates for quasi-solutions of ill-posed problems, Fethiye (29.05.2014)
27. Regularization properties of Mumford-Shah type functionals for linear inverse problems (29.05.2014)
28. Regularization properties of Mumford-Shah type functionals with perimeter and norm constraints for linear ill-posed problems, Fethiye (29.05.2014)
29. Inverse Problems in Adaptive Optics, Fethiye (27.05.2014)
30. Understanding generalized cross validation from the deterministic point of view, Fethiye (26.05.2014)
31. Inverse Problems in Adaptive Optics, Universität Wien (14.05.2014)
32. New Reconstruction Methods in Adaptive Optics, Paris (11.03.2014)
33. A Mumford-Shah type approach for tomography, Johannes Kepler Universität (07.03.2014)
34. Inverse Problems in Adaptive Optics, Passau (07.01.2014)
35. Reconstruction methods for adaptive optics, Fudan University, Shanghai, China (28.09.2013)
36. Regularization properties of Mumford-Shah type functionals for linear ill-posed problems, Klagenfurt (09.09.2013)
37. Regularization properties of Mumford-Shah type functionals for linear inverse problems, Klagenfurt, Universität Klagenfurt (09.09.2013)
38. A Mumford-Shah type functional for limited data tomography, Daejeon (05.07.2013)
39. Regularization properties of Mumford-Shah type functionals for linear inverse problems, Canberra (22.11.2012)
40. A Mumford-Shah type approach for tomography, Berlin (23.08.2012)
41. Iterative Reconstruction Methods for Adaptive Optics, Universität Politecnica de Valencia (19.06.2012)
42. A Mumford-Shah type functional for limited data tomography, Antalya (24.05.2012)
43. A Kaczmarz type iterative reconstructor for Multi Conjugate Adaptive Optics, University of Victoria (26.09.2011)
44. Tikhonov Regularization of Ill-Posed Problems in Banach Spaces (20.09.2011)
45. A Mumford-Shah type functional for limited data tomography, College Station, Texas (24.05.2011)

Vortragstyp: Eingeladener Vortrag an Universität

1. Inverse Problems for adaptive systems of extremely large telescopes, Salzburg (01.02.2018)
2. Krylov methods for simultaneous solution of shifted linear systems, Wuppertal (24.09.2014)
3. A weighted wavelet method for region of interest tomography, Medford, MA (12.09.2014)
4. Project presentation: Mumford-Shah type methods for tomography, Berlin (11.04.2014)
5. Minimum Residual Methods for Shifted Linear Systems with General Preconditioning (06.02.2014)
6. Inverse Probleme mit Anwendungen in Tomographie und Optik, Würzburg (09.07.2013)
7. Inverse Problems in Adaptive Optics, Universität Wien (21.01.2013)
8. Inverse Problems in Adaptive Optics (25.09.2012)
9. Inverse Problems in Adaptive Optics, Universität Graz (19.01.2012)
10. Inverse Problems in Adaptive Optics, Department of Mathematics and Statistics of University of Helsinki (30.08.2011)
11. Inverse Problems in Adaptive Optics, Kolloquium an der Universität Chemnitz (06.04.2011)
12. Inverse Problems in Adaptive Optics Optics, Universität Frankfurt (10.02.2011)
13. A Mumford-Shah type functional for inverse problems with applications in tomography, Berlin, Humboldt Universität (08.02.2011)
14. Morozov principle for an augmented Lagrangian method for solving ill-posed problems (24.09.2010)
15. Recent developments on an iterative method for linear ill-posed problems (06.09.2010)
16. Bregman iteration as an augmented Lagrangian method (27.07.2010)
17. Recent developments on an iterative method for linear ill-posed problems (28.06.2010)
18. Regularisierung von Inversen Problemen: Analysis und Anwendungen (07.05.2010)
19. Regularisierung zur Lösung Inverser Probleme: Analysis und Anwendungen (21.04.2010)
20. Stable reconstruction of solutions of ill-posed problems - selected topics (19.04.2010)
21. Mathematical Modelling and Numerical Simulation: From Iron and Steel Making via Inverse Problems to Finance, Ecole Nationale des Ingenieurs de Tunis, Tunis (18.05.2007)
22. Mathematical Modelling and Numerical Simulation: From Iron and Steel Making via Inverse Problems in Finance, Universität Kaiserslautern (19.04.2007)
23. Mathematical Modelling and Numerical Simulation: From Irion and Steel Making via Inverse Problems to Finance, University of Tokyo (24.10.2006)
24. Regularization of Nonlinear Inverse Problems: Mathematics, Industrial Application Fields, New Challenges, University of Tokyo (23.10.2006)
25. Hot Stuff: From Ironmaking Furnaces via Inverse Problems to Mathematical Finance, Universität Göttingen (19.04.2006)
26. A parameter identification problem of mixed type related to the manufacture of car windshields, Universidad de Buenos Aires Buenos Aires (12.02.2004)

Vortragstyp: Vortrag auf einer Tagung (referiert)

1. Databased Optimization of coating characteristics ? Challenges and possible solution, Mailand (30.04.2024)
2. Enhancing Predictive Quality in HVOF Coating Technology: A Comparative Analysis of Machine Learning Techniques, Iscte - University Institute of Lisbon (23.11.2023)
3. Development of PSF reconstruction for first light instruments on the ELT, Avignon (26.06.2023)
4. A Projected Nesterov-Kaczmarz Approach to Stellar Population Distribution Reconstruction in Extragalactic Archaeology, Seattle (01.06.2023)
5. A generalised and nonlinear wavefront estimator for Fourier-type wavefront sensors, Montreal, Kanada (29.08.2022)
6. Enabling PSF reconstruction for MICADO, virtueller Vortrag (15.06.2021)
7. An imaging problem from microscopy using sparsity constraints, Valencia (17.07.2019)
8. A new gradient method for ill- posed problems (21.05.2018)
9. Nonlinearity conditions for parameter identification problems in elliptic PDEs (21.05.2018)
10. Projection methods for linear ill-posed problems revisited, Hangzhou (31.05.2017)
11. Wavefront Reconstruction in AO from Pyramid Sensor Data, Hangzhou (30.05.2017)
12. Fast iterative reconstructors for MCAO, MOAO and LTAO, Florenz (27.05.2013)
13. Convergence Rates for Iterative Regularization Methods of Kaczmarz Type (20.04.2013)
14. Inverse Problems in Adaptive Optics, Linz (27.03.2013)
15. Reconstrucion Methods in Adaptive Optics, Novi Sad (19.03.2013)
16. Reconstruction methods for adaptive optics (19.11.2012)
17. On the Shack-Hartmann based wavefront reconstruction: stability and convergence, rates of finite-dimensional approximations, Antalya (24.05.2012)
18. Iterative regularization methods for adaptive optics, Antalya (22.05.2012)
19. Regularization of Inverse Problems - Methods and Applications, Grenoble (05.12.2011)
20. Multi-parameter regularization for construction of extrapolating estimators in statistical learning theory, Donau-Universität Krems (28.09.2011)
21. New Math Methods: Numerical Computation, Softwarepark Hagenberg (14.07.2011)
22. Inverse Problems in Astronomy, Texas (26.05.2011)
23. Cumulative wavefront reconstructors for the Shack-Hartmann sensor (24.05.2011)
24. Modellbasierte Verfahren zur Bestimmung von Rotorunwuchten, Bachmann Monitoring GmbH, Feldkirch (12.05.2011)
25. A Mumford-Shah type functional for limited data tomography, Munich (15.03.2011)
26. A SVD for the Shack-Hartman WFS (03.11.2010)
27. Wavelet Based Reconstruction for SH wavefront sensor (03.11.2010)
28. An SVD based Wavefront Reconstructic for Adaptive Optics (23.09.2010)
29. Truncated Soft Shrinkage Iteration with Discrepancy Based Stopping Rule (09.09.2010)
30. An SVD based Wavefront Reconstructic for Adaptive Optics (02.06.2010)
31. Dual Regularized Total Least Squares for the Prediction Problem in Learning Theory (27.05.2010)
32. Inverse Problems in Industry (27.05.2010)
33. Fast iterative multilevel methods for inverse problems (26.05.2010)
34. Inverse Problems in Adaptive Optics (26.05.2010)
35. General fixed-point iteration for nonlinear inverse problems (25.05.2010)
36. On enhanced convergence rates for Tikhonov regularization in Banach spaces (25.05.2010)
37. Regions of stability and regularization of the Cauchy-Problem for the Helmholtz equation (25.05.2010)
38. Truncated Soft Shrinkage Iteration with Discrepancy Based Stopping Rule (08.04.2010)
39. Dual Regularized Total Least Squares in Learning Theory (10.02.2010)
40. Finite dimensional approximation of convex regularization in nonseparable Banach spaces (10.02.2010)
41. A dual norm iterative method for image restoration (13.01.2010)
42. An inverse problems approach to the identification of the chemotaxis response function, ETH Zürich (19.07.2007)
43. Online Parameter Identification in Time Dependent Differential Equations, SIAM San Francisco (01.07.2007)
44. Online parameter identification, UBC Vancouver (28.06.2007)
45. Online Parameter Identification in Odes and Pdes, SIAM Snowbird Snowbird (01.06.2007)

Vortragstyp: Vortrag auf einer Tagung (nicht referiert)

1. Ultrasound aberration correction for layered media (28.05.2024)
2. Combining CFL-like conditions and multirate DAE framework for applications in system simulation software, Catania (21.10.2021)
3. Multirate DAE-Simulation and its application in automotive system simulation software, Strobl, Bundesinstitut für Erwachsenenbildung (15.10.2019)
4. Wavefront Reconstruction in AO using Pyramid Sensors, Mühlheim an der Ruhr (29.12.2016)
5. Atmospheric tomography for ELT Adaptive Optics, Chemnitz (19.09.2014)
6. A block GMRES-like algorithm for the simultaneous solution of shifted linear systems, Birmingham (03.09.2014)
7. Mumford-Shah and Tomography, RICAM (08.08.2014)
8. Shape Sensitivity Analysis, RICAM (07.08.2014)
9. Regularization methods, RICAM (06.08.2014)
10. Introduction to Inverse Problems, RICAM (05.08.2014)
11. Minimum Residual Methods for Nonsymmetric Shifted Linear Systems with Preconditioning, Barcelona (15.07.2014)
12. Minimum Residual Methods for Nonsymmetric Shifted Linear Systems with Preconditioning, Spa (10.06.2014)
13. The cumulative reconstructor (CuReD) for SCAO on COMPASS, Saclay (05.06.2014)
14. Fast iterative reconstruction methods in atmospheric tomography, Edinburgh (26.03.2014)
15. Krylov Subspace Recycling: A Direct Projection Method for Solving Shifted Linear Systems (09.08.2013)
16. Block Krylov Subspace Recycling: Theory and Application in a Newton Iteration, Oxford, UK (20.06.2013)

Vortragstyp: Habilitationsvortrag

1. Fast Wavefront Reconstruction Algorithms for eXtreme Adaptive Optics, Linz (13.11.2014)

Vortragstyp: Posterpräsentation

1. A projected Nesterov-Kaczmarz approach to stellar population distribution reconstruction in Extragalactic Archaeology, Potsdam (20.09.2022)
2. Off-axis PSF reconstruction for SCAO and MCAO systems, Montréal (29.08.2022)
3. Development of PSF reconstruction for first light instruments on the ELT, Québec (13.06.2019)
4. Overview of PSF modelling techniques for adaptive-optics assisted ELT instruments, Québec (13.06.2019)
5. Performance of the optimal grouping method for atmospheric layer compression, Québec (13.06.2019)
6. The MICADO/MAORY PSF reconstruction service, Québec (13.06.2019)
7. Tomography for SCAO with predictive control, Québec (13.06.2019)
8. Adaptive Optics with a pyramid wavefront sensor in the visible versus near-infrared, Québec (11.06.2019)
9. Atmospheric tomography with pyramid wavefront sensors, Québec (11.06.2019)
10. Feasibility of standard and novel solvers in atmospheric tomography for the ELT, Québec (11.06.2019)
11. Model-based wavefront reconstruction tested on the LOOPS bench, Québec (11.06.2019)
12. Wavefront reconstruction for ELT-sized telescopes with pyramid wavefront sensors, Austin/Texas (12.06.2018)
13. A fast reconstruction method for complex adaptive optics systems, Bristol (27.08.2014)

Vortragstyp: Andere Vorträge und Präsentationen

1. Advances in regularization for some classes of nonlinear inverse problems, Göttingen (05.09.2023)
2. Reconstruction methods for adaptive optics, Garching bei München (28.11.2013)
3. Faszination der Mathematik, Linz, JKU (05.12.2011)
4. General fixed-point iteration for high-frequency inverse scattering (01.04.2011)
5. Inverse Problems in Adaptive Optics (03.11.2010)
6. XAO - Simulating the Pyramid Wavefront Sensor (03.11.2010)
7. Faszination der Mathematik, Linz, JKU (06.07.2010)
8. Faszination der Mathematik, Linz, JKU (23.02.2010)

1. Industrial methods for Adaptive Optics (Anfangsjahr: 2022)
2. Die Tundra taut auf - was kann die Mathematik tun? (Anfangsjahr: 2021)
3. Fourier-Optik (Anfangsjahr: 2020)
4. High-Performance real-time wavefront reconstruction and post-processing for Adaptive Optics systems on extremely large ground-based Telescopes (Anfangsjahr: 2018)
5. Tomography Across the Scales (Anfangsjahr: 2018)
6. Heuristische Regularisierung zur astronomischen Bildgebung (Anfangsjahr: 2017)
7. ROMSOC - Reduced Order Modelling, Simulation and Optimization of Coupled Systems (Anfangsjahr: 2017)
8. Beobachtungsorientierte Astrophysik in der E-ELT Ära (Anfangsjahr: 2014)
9. Enhanced X-ray Tomographic Reconstruction: Experiment, Modeling, and Algorithms (Anfangsjahr: 2013)
10. Mumford-Shah methods for tomography II (Anfangsjahr: 2012)
11. Mathematical Algorithms and Software for ELT Adaptive Optics (Anfangsjahr: 2009)
12. Regularisierungsmethoden in Banachräume (Anfangsjahr: 2008)
13. Projekte am Institut für Industriemathematik (Anfangsjahr: 1988)

Patente

1. Mathematical Design of Ion Channel Selectivity via Inverse Problems Technology (2012)
2. Verfahren zur Optimierung von Auslegung und Betrieb eines Reduktionsverfahrens (2001)

Typ: Sonstiges

1. Science Slam Oberösterreich 2018 (20.03.2018) 
2. Science Slam Austrian Finals 2018 (13.04.2018) 
3. Science Slam Europafinale 2018 (09.07.2018) 

Typ: Auslandsaufenthalt

1. Forschungsaufenthalt an der Kent State Universität (11.08.2016-31.01.2017) 

Typ: Veranstaltungsorganisation: Forschungsseminar

1. ESO In-Kind Seminar Schloss Weinberg (02.11.2010-04.11.2010) 

Typ: Veranstaltungsorganisation: Tagung / Symposium / Workshop (referiert)

1. Minisymposium: Numerical Methods for large-scale Inverse Problems (29.05.2017) 
2. New Trends in Regularization Theory (23.05.2022-24.05.2022) 
3. New Trends in Regularization Theory (21.05.2018) 
4. Applied Inverse Problems 2011 (20.05.2011-30.05.2011) 

Typ: Veranstaltungsorganisation: Tagung / Symposium / Workshop (nicht referiert)

1. Minisymposium "Recent Progress in Regularization Theory" (23.05.2012) 
2. Minisymposium "Inverse Problems in Science and Industry" (22.05.2012) 
3. ESSIM Modelling Week 2013 (21.07.2013-28.07.2013) 
4. Minisymposium: "Linear Algebra for Inverse Problems" (20.06.2012) 
5. Projektwoche Angewandte Mathematik für Schüler*innen 2022 (20.03.2022-24.03.2022) 
6. METIS AO Meeting (17.07.2014-18.07.2014) 
7. Mathematische Modellierung der Mechanismen der Mutation (13.02.2011-17.02.2011) 
8. Projektwoche Angewandte Mathematik 2011 (13.02.2011-17.02.2011) 
9. Projektwoche Angewandte Mathematik für Schüler*innen 2023 (12.02.2023-16.02.2023) 
10. Entdeckung des unbekannten Zusammenhangs zwischen zwei Größen (11.07.2011) 
11. Projektwoche Angewandte Mathematik für Schüler*innen Angewandte Mathematik für Schüler*innen 2024 (11.02.2024-15.02.2024) 
12. Projektwoche Angewandte Mathematik 2017 (11.02.2018-15.02.2018) 
13. Projektwoche Angewandte Mathematik 2019 (10.02.2019-14.02.2019) 
14. Projektwoche Angewandte Mathematik 2013 (10.02.2013-14.02.2013) 
15. Projektwoche Angewandte Mathematik 2014 (09.02.2014-13.02.2014) 
16. Projektwoche Angewandte Mathematik 2015 (08.02.2015-12.02.2015) 
17. Projektwoche Angewandte Mathematik 2016 (07.02.2016-11.02.2016) 
18. Austro-Czech Workshop: "Modeling Multiphysics" (05.07.2018) 
19. Gene Golub SIAM Summer School 2014. Simulation, Optimization, and Identification in Solid Mechanics (04.08.2014-15.08.2014) 

Typ: Tagung / Symposium / Workshop: Programm-Komitee

1. Industrial Tomography Workshop (13.10.2014-15.10.2014) 

Typ: Tagung / Symposium / Workshop: Session oder Panel

1. New Trends in Regularization Theory (27.05.2024-28.05.2024) 
2. Multifaceted perspective on regularization theory and its applications (25.05.2015-29.05.2015)