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math.NA2015
Geometrical inverse preconditioning for symmetric positive definite matrices
Jean-Paul Chehab, Marcos Raydan
We focus on inverse preconditioners based on minimizing , where is the preconditioned matrix and is symmetric and positive definite. We present and an…
math.NA2015
Stabilized Times Schemes for High Accurate Finite Differences Solutions of Nonlinear Parabolic Equations
Brachet Matthieu, Chehab Jean-Paul
The Residual Smooting Scheme (RSS) have been introduced in \cite{AverbuchCohenIsraeli} as a backward Euler's method with a simplified implicit part for the solution of parabolic pr…
math.NA2015
Parallel Matrix Function Evaluation via Initial value ODE modelling
Jean-Paul Chehab, Madalina Petcu
The purpose of this article is to propose ODE based approaches for the numerical evaluation of matrix functions , a question of major interest in the numerical linear algebra…