Results 11 to 20 of about 81,392 (265)

Dependence of the Analytical Approximate Solution to the Van der Pol Equation on the Perturbation of a Moving Singular Point in the Complex Domain

open access: yesAxioms, 2023
This paper considers a theoretical substantiation of the influence of a perturbation of a moving singular point on the analytical approximate solution to the Van der Pol equation obtained earlier by the author.
Victor Orlov
doaj   +1 more source

Residual-based a posteriori error estimates for the hp version of the finite element discretization of the elliptic Robin boundary control problem

open access: yesResults in Applied Mathematics, 2022
Optimal control problems governed by partial differential equations have become a very active and successful research area. So, in this paper, we analyzed a priori and a posteriori error estimates for the hpfinite element discretization of elliptic Robin
Samuel Gbéya   +3 more
doaj   +1 more source

Numerical Analysis of a Swelling Poro-Thermoelastic Problem with Second Sound

open access: yesMathematics, 2023
In this paper, we analyze, from the numerical point of view, a swelling porous thermo-elastic problem. The so-called second-sound effect is introduced and modeled by using the simplest Maxwell–Cattaneo law. This problem leads to a coupled system which is
Noelia Bazarra   +2 more
doaj   +1 more source

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 an Osseointegration Model

open access: yesMathematics, 2020
In this work, we study a bone remodeling model used to reproduce the phenomenon of osseointegration around endosseous implants. The biological problem is written in terms of the densities of platelets, osteogenic cells, and osteoblasts and the ...
Jacobo Baldonedo   +2 more
doaj   +1 more source

A priori and a posteriori estimates of the stabilized finite element methods for the incompressible flow with slip boundary conditions arising in arteriosclerosis

open access: yesAdvances in Difference Equations, 2019
In this paper, we develop the lower order stabilized finite element methods for the incompressible flow with the slip boundary conditions of friction type whose weak solution satisfies a variational inequality.
Jian Li, Haibiao Zheng, Qingsong Zou
doaj   +1 more source

Finite Element Error Analysis of a Viscoelastic Timoshenko Beam with Thermodiffusion Effects

open access: yesMathematics, 2023
In this paper, a thermomechanical problem involving a viscoelastic Timoshenko beam is analyzed from a numerical point of view. The so-called thermodiffusion effects are also included in the model. The problem is written as a linear system composed of two
Jacobo G. Baldonedo   +3 more
doaj   +1 more source

Error estimates of finite volume method for Stokes optimal control problem

open access: yesJournal of Inequalities and Applications, 2021
In this paper, we discuss a priori error estimates for the finite volume element approximation of optimal control problem governed by Stokes equations. Under some reasonable assumptions, we obtain optimal L 2 $L^{2}$ -norm error estimates.
Lin Lan   +4 more
doaj   +1 more source

A Priori Error Estimates for Mixed Finite Element Schemes for the Wave Equation

open access: yesSultan Qaboos University Journal for Science, 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 ...
Samir Karaa
doaj   +1 more source

A Novel Characteristic Expanded Mixed Method for Reaction-Convection-Diffusion Problems

open access: yesJournal of Applied Mathematics, 2013
A novel characteristic expanded mixed finite element method is proposed and analyzed for reaction-convection-diffusion problems. The diffusion term ∇·(a(x,t)∇u) is discretized by the novel expanded mixed method, whose gradient belongs to the square ...
Yang Liu   +4 more
doaj   +1 more source

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