Manuel Kauers,
"Fast Solvers for Dense Linear Systems"
, in Nuclear Physics B, Vol. 183, Seite(n) 245-250, 2008, ISSN: 0550-3213
Original Titel:
Fast Solvers for Dense Linear Systems
Sprache des Titels:
Englisch
Original Kurzfassung:
It appears that large scale calculations in particle physics often require to solve systems of linear equations with rational number coefficients exactly. If classical Gaussian elimination is applied to a \emph{dense} system, the time needed to solve such a system grows exponentially in the size of the system. In this tutorial paper, we present a standard technique from computer algebra that avoids this exponential growth: homomorphic images. Using this technique, big dense linear systems can be solved in a much more reasonable time than using Gaussian elimination over the rationals.