Results 1 to 10 of about 818 (79)

Numeric Fem’s Solution for Space-Time Diffusion Partial Differential Equations with Caputo–Fabrizion and Riemann–Liouville Fractional Order’s Derivatives

open access: yesAnnales Mathematicae Silesianae, 2023
In this paper, we use the finite element method to solve the fractional space-time diffusion equation over finite fields. This equation is obtained from the standard diffusion equation by replacing the first temporal derivative with the new fractional ...
Boutiba Malika   +2 more
doaj   +1 more source

A Priori Error Estimates for Mixed Finite Element $\theta$-Schemes for the Wave Equation [PDF]

open access: yes, 2015
A family of implicit-in-time mixed finite element schemes is presented for the numerical approximation of the acoustic wave equation. The mixed space discretization is based on the displacement form of the wave equation and the time-stepping method ...
Karaa, Samir
core   +5 more sources

Robust equilibrated a posteriori error estimators for the Reissner-Mindlin system [PDF]

open access: yes, 2010
We consider a conforming finite element approximation of the Reissner-Mindlin system. We propose a new robust a posteriori error estimator based on H(div) conforming finite elements and equilibrated fluxes.
Creusé, Emmanuel   +2 more
core   +4 more sources

A fully discrete evolving surface finite element method [PDF]

open access: yes, 2012
In this paper we consider a time discrete evolving surface finite element method for the advection and diffusion of a conserved scalar quantity on a moving surface.
Charles M. Elliott   +2 more
core   +1 more source

Numerical Homogenization of the Acoustic Wave Equations with a Continuum of Scales [PDF]

open access: yes, 2008
In this paper, we consider numerical homogenization of acoustic wave equations with heterogeneous coefficients, namely, when the bulk modulus and the density of the medium are only bounded.
Owhadi, Houman, Zhang, Lei
core   +3 more sources

Some error estimates for the lumped mass finite element method for a parabolic problem [PDF]

open access: yes, 2011
We study the spatially semidiscrete lumped mass method for the model homogeneous heat equation with homogeneous Dirichlet boundary conditions. Improving earlier results we show that known optimal order smooth initial data error estimates for the standard
Chatzipantelidis, Panagiotis   +2 more
core   +4 more sources

On well-separated sets and fast multipole methods

open access: yes, 2011
The notion of well-separated sets is crucial in fast multipole methods as the main idea is to approximate the interaction between such sets via cluster expansions.
Engblom, Stefan
core   +1 more source

A robust method of lines solution for singularly perturbed delay parabolic problem

open access: yesAlexandria Engineering Journal, 2020
A numerical method is proposed to solve a non-autonomous singularly perturbed parabolic differential equation with a time delay. The solution is obtained by a step by step discretisation process. First the spatial derivatives are discretised via a fitted
Nana Adjoah Mbroh   +2 more
doaj  

A second order finite difference scheme for singularly perturbed Volterra integro-differential equation

open access: yesAlexandria Engineering Journal, 2020
In this paper, a singularly perturbed Volterra integro-differential equation, characterised by a single layer, is investigated. A numerical technique which uses a non-standard finite difference scheme is implemented to solve the differential part ...
Nana Adjoah Mbroh   +2 more
doaj  

Linear-implicit strong schemes for Itô-Galkerin approximations of stochastic PDEs [PDF]

open access: yes, 2010
Linear-implicit versions of strong Taylor numerical schemes for finite dimensional Itô stochastic differential equations (SDEs) are shown to have the same order as the original scheme.
Kloeden, Peter E., Shott, Stephen
core  

Home - About - Disclaimer - Privacy