Results 31 to 40 of about 401,417 (282)

Afternote to “Coupling at a Distance”: Convergence Analysis and A Priori Error Estimates

open access: yesComputational Methods in Applied Mathematics, 2022
Abstract In their article “Coupling at a distance HDG and BEM”, Cockburn, Sayas and Solano proposed an iterative coupling of the hybridizable discontinuous Galerkin method (HDG) and the boundary element method (BEM) to solve an exterior Dirichlet problem.
Nestor Sánchez   +2 more
openaire   +3 more sources

Numerical analysis of the planewave discretization of some orbital-free and Kohn-Sham models [PDF]

open access: yes, 2010
We provide a priori error estimates for the spectral and pseudospectral Fourier (also called planewave) discretizations of the periodic Thomas-Fermi-von Weizs\"{a}cker (TFW) model and for the spectral discretization of the Kohn-Sham model, within the ...
Cancès, Eric   +2 more
core   +5 more sources

Space-time adaptive finite elements for nonlocal parabolic variational inequalities [PDF]

open access: yes, 2019
This article considers the error analysis of finite element discretizations and adaptive mesh refinement procedures for nonlocal dynamic contact and friction, both in the domain and on the boundary. For a large class of parabolic variational inequalities
Gimperlein, Heiko, Stocek, Jakub
core   +2 more sources

Error estimates of variational discretization for semilinear parabolic optimal control problems

open access: yesAIMS Mathematics, 2021
In this paper, variational discretization directed against the optimal control problem governed by nonlinear parabolic equations with control constraints is studied.
Chunjuan Hou   +3 more
doaj   +1 more source

Discontinuous Galerkin method for an integro-differential equation modeling dynamic fractional order viscoelasticity [PDF]

open access: yes, 2015
An integro-differential equation, modeling dynamic fractional order viscoelasticity, with a Mittag-Leffler type convolution kernel is considered.
Larsson, Stig   +2 more
core   +2 more sources

Numerical Method for a Cauchy Problem for Multi-Dimensional Laplace Equation with Bilateral Exponential Kernel

open access: yesMathematics, 2023
This study examined a Cauchy problem for a multi-dimensional Laplace equation with mixed boundary. This problem is severely ill-posed in the sense of Hadamard.
Xianli Lv, Xiufang Feng
doaj   +1 more source

Finite Element Convergence for the Joule Heating Problem with Mixed Boundary Conditions [PDF]

open access: yes, 2012
We prove strong convergence of conforming finite element approximations to the stationary Joule heating problem with mixed boundary conditions on Lipschitz domains in three spatial dimensions.
A. Johnsson   +35 more
core   +3 more sources

A priori error estimates for a discretized poro-elastic–elastic system solved by a fixed-stress algorithm

open access: yesOil & Gas Science and Technology, 2019
We consider a poro-elastic region embedded into an elastic non-porous region. The elastic displacement equations are discretized by a continuous Galerkin scheme, while the flow equations for the pressure in the poro-elastic medium are discretized by ...
Girault Vivette   +3 more
doaj   +1 more source

Finite element approximation of non-Fickian polymer diffusion [PDF]

open access: yes, 2009
The problem of nonlinear non-Fickian polymer diffusion as modelled by a diffusion equation with an adjoined spatially local evolution equation for a viscoelastic stress is considered (see, for example, Cohen, White & Witelski, SIAM J. Appl. Math.
Bauermeister, N, Shaw, S
core   +1 more source

Robust a priori and a posteriori error analysis for the approximation of Allen–Cahn and Ginzburg–Landau equations past topological changes [PDF]

open access: yes, 2011
A priori and a posteriori error estimates are derived for the numerical approximation of scalar and complex valued phase field models. Particular attention is devoted to the dependence of the estimates on a small parameter and to the validity of the ...
Bartels, Sören   +2 more
core   +1 more source

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