Results 11 to 20 of about 267 (138)

Numerical approximation of the Oseen system in polyhedral or polygonal domains

open access: yes
MSC Classification: 65N30 , 65N15We consider the Oseen system with nonhomogeneous Dirichlet boundary conditions, and its approximation by a finite element method (FEM).
Raymond, Jean-Pierre, Badra, Mehdi
core   +8 more sources

Numerical approximation of dynamic deformations of a thermoviscoelastic rod against an elastic obstacle [PDF]

open access: yes, 2004
. In this paper we consider a hyperbolic-parabolic problem that models the longitudinal deformations of a thermoviscoelastic rod supported unilaterally by an elastic obstacle. The existence and uniqueness of a strong solution is shown.
Maria I.M. Copetti   +2 more
core   +1 more source

The adaptive finite element method for the Steklov eigenvalue problem in inverse scattering

open access: yesOpen Mathematics, 2020
In this study, for the first time, we discuss the posteriori error estimates and adaptive algorithm for the non-self-adjoint Steklov eigenvalue problem in inverse scattering.
Zhang Yu, Bi Hai, Yang Yidu
doaj   +1 more source

Numerical methods for Lévy processes

open access: yes, 2009
Multidimensional Lévy processes, Numerical methods, Asset pricing, 60J75, 65N06, 65N30, C63,
Reich, N.   +7 more
core   +1 more source

Penalty method for unilateral contact problem with Coulomb's friction in time-fractional derivatives

open access: yesDemonstratio Mathematica
The purpose of this work is to study a mathematical model that describes a contact between a deformable body and a rigid foundation. A linear viscoelastic Kelvin-Voigt constitutive law with time-fractional derivatives describes the material’s behavior ...
Essafi Lakbir, Bouallala Mustapha
doaj   +1 more source

Método del elemento reproductor del núcleo para soluciones de problemas elasto-estáticos.

open access: yesIngeniería y Ciencia, 2012
El Método del Elemento Reproductor del Núcleo (RKEM) es una técnica relativamente nueva desarrollada para tener dos propiedades distinguidas: suavidad de orden arbitrario y funciones de interpolación de orden arbitrario.
Mario J Juha
doaj   +1 more source

A fully-discrete finite element approximation for the eddy currents problem

open access: yesIngeniería y Ciencia, 2013
The eddy current model is obtained from Maxwell’s equations by neglecting the displacement currents in the Amp`ere-Maxwell’s law and it is commonly used in many problems in sciences, engineering and industry (e.g, in induction heating, electromagnetic ...
Ramiro Acevedo, Gerardo Loaiza
doaj   +1 more source

A Sharpened Condition Number Estimate for the BPX Preconditioner of Elliptic Finite Element Problems on Highly Nonuniform Triangulations.

open access: yes, 1991
In this paper it is shown that for highly nonuniformly refined triangulations the condition number of the BPX preconditioner for elliptic finite element problems grows at most linearly in the depth of refinement.
Bornemann, Folkmar A.
core   +1 more source

Isoparametric mixed finite element approximation of eigenvalues and eigenvectors of 4th order eigenvalue problems with variable coefficients [PDF]

open access: yes, 2001
. Estimates for the combined eect of boundary approximation and numerical integration on the approximation of (simple) eigenvalues and eigenvectors of 4th order eigenvalue problems with variable/constant coecients in convex domains with curved boundary ...
Nataraj, Neela   +4 more
core   +1 more source

A non-overlapping domain decomposition method for the advection-diffusion problem

open access: yes, 2000
The application of a non-overlapping domain decomposition method to the solution of a stabilized finite element method for elliptic boundary value problems is considered.
Otto, F. C., Lube, Gert, Mueller, L.
core   +1 more source

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