Results 1 to 10 of about 813 (83)

A Finite Element Algorithm for Nematic Liquid Crystal Flow Based on the Gauge-Uzawa Method

open access: yesJournal of Computational Mathematics, 2022
In this paper, we present a finite element algorithm for the time-dependent nematic liquid crystal flow based on the Gauge-Uzawa method. This algorithm combines the Gauge and Uzawa methods within a finite element variational formulation, which is a fully
Pengzhan Huang
semanticscholar   +1 more source

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 Compact Difference Scheme for Time-Fractional Dirichlet Biharmonic Equation on Temporal Graded Meshes

open access: yes, 2021
The stability of a compact finite difference scheme on general nonuniform temporal meshes for a time fractional two-dimensional biharmonic problem is proved and graded mesh error estimates are derived.
Mingrong Cui
semanticscholar   +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   +1 more source

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   +1 more source

An $hp$-Version of $C^0$ -Continuous Petrov-Galerkin Time-Stepping Method for Second-Order Volterra Integro-Differential Equations with Weakly Singular Kernels

open access: yes, 2021
An hp-version of C-CPG time-stepping method for second-order Volterra integro-differential equations with weakly singular kernels is studied. In contrast to the methods reducing second-order problems to first-order systems, here the CG and DG ...
Shuangshuang Li
semanticscholar   +1 more source

The Weak Galerkin Finite Element Method for Solving the Time-Dependent Integro-Differential Equations

open access: yesAdvances in Applied Mathematics and Mechanics, 2020
In this paper, we solve linear parabolic integral differential equations using the weak Galerkin finite element method (WG) by adding a stabilizer. The semidiscrete and fully-discrete weak Galerkin finite element schemes are constructed.
Xiuli Wang
semanticscholar   +1 more source

Convergence Analysis of Exponential Time Differencing Schemes for the Cahn-Hilliard Equation†

open access: yesCommunications in Computational Physics, 2019
In this paper, we rigorously prove the convergence of fully discrete firstand second-order exponential time differencing schemes for solving the Cahn-Hilliard equation.
Xiao Li
semanticscholar   +1 more source

Linear‐implicit strong schemes for Itô‐Galkerin approximations of stochastic PDEs

open access: yesInternational Journal of Stochastic Analysis, Volume 14, Issue 1, Page 47-53, 2001., 2001
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. The combined truncation and global discretization error of an γ strong linear‐implicit Taylor scheme with time‐step Δ applied to the N dimensional Itô‐Galerkin SDE for a
P. E. Kloeden, S. Shott
wiley   +1 more source

Analysis of higher order difference method for a pseudo-parabolic equation with delay

open access: yesMiskolc Mathematical Notes, 2019
In this paper, the author considers the one dimensional initial-boundary problem for a pseudo-parabolic equation with time delay in second spatial derivative.
I. Amirali
semanticscholar   +1 more source

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