Results 11 to 20 of about 123,466,522 (150)

Explicit error bounds for the α-quasi-periodic Helmholtz problem [PDF]

open access: yes, 2013
This paper considers a finite element approach to modeling electromagnetic waves in a periodic diffraction grating. In particular, an a priori error estimate associated with the α-quasi-periodic transformation is derived.
Mulholland, Anthony J., Lord, Natacha H.
core   +4 more sources

A priori error estimates of regularized elliptic problems [PDF]

open access: yesNumerische Mathematik, 2020
AbstractApproximations of the Dirac delta distribution are commonly used to create sequences of smooth functions approximating nonsmooth (generalized) functions, via convolution. In this work we show a-priori rates of convergence of this approximation process in standard Sobolev norms, with minimal regularity assumptions on the approximation of the ...
Heltai, Luca, Lei, Wenyu
openaire   +6 more sources

Optimal $$L^2$$ A Priori Error Estimates for the Biot System [PDF]

open access: yesLa Matematica, 2022
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Girault, Vivette   +2 more
openaire   +2 more sources

A Priori Error Estimate of a Multiscale Finite Element Method for Transport Modeling [PDF]

open access: yes, 2015
International audienceThis work proposes an \textit{a priori} error estimate of a multiscale finite element method to solve convection-diffusion problems where both velocity and diffusion coefficient exhibit strong variations at a scale which is much ...
Ouaki, Franck   +3 more
core   +5 more sources

SUPG-Stabilized Virtual Element Method for Optimal Control Problem Governed by a Convection Dominated Diffusion Equation

open access: yesEntropy, 2021
In this paper, the streamline upwind/Petrov Galerkin (SUPG) stabilized virtual element method (VEM) for optimal control problem governed by a convection dominated diffusion equation is investigated.
Qiming Wang, Zhaojie Zhou
doaj   +1 more source

The Surrogate Matrix Methodology: A Priori Error Estimation [PDF]

open access: yesSIAM Journal on Scientific Computing, 2019
We give the first mathematically rigorous analysis of an emerging approach to finite element analysis (see, e.g., Bauer et al. [ Appl. Numer. Math., 122 (2017), pp. 14--38]), which we hereby refer to as the surrogate matrix methodology. This methodology is based on the piecewise smooth approximation of the matrices involved in a standard finite element
Drzisga, Daniel   +2 more
openaire   +3 more sources

A priori error analysis of virtual element method for contact problem

open access: yesFixed Point Theory and Algorithms for Sciences and Engineering, 2022
As an extension of the finite element method, the virtual element method (VEM) can handle very general polygonal meshes, making it very suitable for non-matching meshes. In (Wriggers et al. in Comput. Mech.
Fei Wang, B. Daya Reddy
doaj   +1 more source

Numerical Simulation for Brinkman System with Varied Permeability Tensor

open access: yesMathematics, 2022
The aim of this paper is to study a stationary Brinkman problem in an anisotropic porous medium by using a mini-element method with a general boundary condition. One of the important aspects of the P1−Bubble/P1 method is satisfying the inf-sup condition,
Lahcen El Ouadefli   +6 more
doaj   +1 more source

A priori error estimates for Lagrange interpolation on triangles [PDF]

open access: yesApplications of Mathematics, 2015
15 pages, 2 figures To appear in Applications of ...
Kobayashi, Kenta, Tsuchiya, Takuya
openaire   +2 more sources

Numerical resolution of the wave equation using the spectral method

open access: yesBoundary Value Problems, 2022
We present a new procedure for the numerical study of the wave equation. We use the spectral discretization method associated with the Euler scheme for spatial and temporal discretization. A detailed numerical analysis leads to an a priori error estimate.
Mohamed Abdelwahed, Nejmeddine Chorfi
doaj   +1 more source

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