Jarle Sogn, Walter Zulehner,
"Schur Complement Preconditioners for Multiple Saddle Point Problems of Block Tridiagonal Form with Application to Optimization Problems"
, Serie NuMa Report, Nummer 2017-04, Eigenverlag, Linz, 2017
Original Titel:
Schur Complement Preconditioners for Multiple Saddle Point Problems of Block Tridiagonal Form with Application to Optimization Problems