Results 41 to 50 of about 82 (70)

A parallel Newton multigrid method for high order finite elements and its application on numerical existence proofs for elliptic boundary value equations

open access: yes, 1996
. We describe a parallel algorithm for the numerical computation of guaranteed bounds for solutions of elliptic boundary value equations of second order.
Wieners, Christian, Christian Wieners
core  

A Nash-Game Approach to Elliptic Cauchy Data Completion with Robust Error Bounds in Practical Noisy Regimes

open access: yes
This paper presents a Nash game formulation for solving the ill-posed Cauchy problem associated with Laplace’s equation. The data completion task is recast as a two-player static game, where each player controls a virtual Dirichlet condition on the ...
Saber Amdouni   +2 more
core   +1 more source

Superconvergent Finite Element Methods on a Shishkin Mesh for Convection-Diffusion Problems

open access: yes, 2007
. In this work, the bilinear finite element method on a Shishkin mesh for convection-diffusion problems is analyzed in the two-dimensional setting. A superconvergent rate O(N \Gamma2 ln 2 N + N \Gamma3=2 ) in a discrete ffl-weighted energy norm is ...
Zhimin Zhang
core  

On the solvability of a nonlinear discrete problem corresponding to a higher-order finite volume approximation in 2D

open access: yes, 1999
When studying non-linear (higher order MUSCL type) finite volume approximation of a linear convection diffusion problem, one is confronted with a question whether the corresponding nonlinear discrete problem is solvable. In this contribution we note that
Mirko Rokyta
core  

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