2 citations · 4 across the 9 of their papers we have counts for
12 papers
Eigenvector-based acceleration strategies for gradient-type methods
Jean-Paul Chehab, Gaspard Kemlin, Marcos Raydan +1
Several strategies are described and analyzed to speed-up gradient-type methods when applied to the minimization of strictly convex quadratics and strictly convex functions. The pr…
Fast and Stable Schemes for Phase Fields Models
Matthieu Brachet, Jean-Paul Chehab
We propose and analyse new stabilized time marching schemes for Phase Fields model such as Allen-Cahn and Cahn-Hillard equations, when discretized in space with high order finite d…
On time relaxed schemes and formulations for dispersive wave equations
Jean-Paul Chehab, Denys Dutykh
The numerical simulation of nonlinear dispersive waves is a central research topic of many investigations in the nonlinear wave community. Simple and robust solvers are needed for…
Geometrical inverse matrix approximation for least-squares problems and acceleration strategies
Jean-Paul Chehab, Marcos Raydan
We extend the geometrical inverse approximation approach for solving linear least-squares problems. For that we focus on the minimization of , where is a giv…
Stabilized bi-grid projection methods in Finite Elements for the 2D incompressible Navier-Stokes
Hyam Abboud, Clara Al Kosseifi, Jean-Paul Chehab
We introduce a family of bi-grid schemes in finite elements for solving 2D incompressible Navier-Stokes equations in velocity and pressure . The new schemes are based on pro…
A Stabilized bi-grid method for Allen Cahn equation in Finite Elements
Hyam Abboud, Clara Al Kosseifi, Jean-Paul Chehab
In this work, we propose a bi-grid scheme framework for the Allen-Cahn equation in Finite Element Method. The new methods are based on the use of two FEM spaces, a coarse one and a…
Numerical solution of the generalized Kadomtsev-Petviashvili equations with compact finite difference schemes
J. -P Chehab, P Garnier, Youcef Mammeri
We propose compact finite difference schemes to solve the KP equations λ. When , this equation describes the p…
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…
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…
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…
Long-time behavior of solutions of a BBM equation with generalized damping
Jean-Paul Chehab, Pierre Garnier, Youcef Mammeri
We study the long-time behavior of the solution of a damped BBM equation . The proposed dampings generalize stand…
A simple mathematical approach to optimize the structure of reaction-diffusion physicochemical systems
Jean-Paul Chehab, Alejandro A. Franco, Youcef Mammeri
The calculation of optimal structures in reaction-diffusion models is of great importance in many physicochemical systems. We propose here a simple method to monitor the number of…