Approximating value functions for controlled degenerate diffusion processes by using piece-wise constant policies.
Approximation and eigenvalue extrapolation of Stokes eigenvalue problem by nonconforming finite element methods
In this paper we analyze the stream function-vorticity-pressure method for the Stokes eigenvalue problem. Further, we obtain full order convergence rate of the eigenvalue approximations for the Stokes eigenvalue problem based on asymptotic error expansions for two nonconforming finite elements, and . Using the technique of eigenvalue error expansion, the technique of integral identities and the extrapolation method, we can improve the accuracy of the eigenvalue approximations.
Approximation by Finite Differences of the Propagation of Acoustic Waves in Stratified Media.
Approximation by generalized impedance boundary conditions of a transmission problem in acoustic scattering
This paper addresses some results on the development of an approximate method for computing the acoustic field scattered by a three-dimensional penetrable object immersed into an incompressible fluid. The basic idea of the method consists in using on-surface differential operators that locally reproduce the interior propagation phenomenon. This approach leads to integral equation formulations with a reduced computational cost compared to standard integral formulations coupling both the transmitted...
Approximation by generalized impedance boundary conditions of a transmission problem in acoustic scattering
This paper addresses some results on the development of an approximate method for computing the acoustic field scattered by a three-dimensional penetrable object immersed into an incompressible fluid. The basic idea of the method consists in using on-surface differential operators that locally reproduce the interior propagation phenomenon. This approach leads to integral equation formulations with a reduced computational cost compared to standard integral formulations coupling both the transmitted...
Approximation by Holomorphic Functions on Pseudokonvex Domains with Isolated Degeneracies.
Approximation by Solutions of Elliptic Equations on Closed Subsets of Euclidean Space.
Approximation by solutions of general boundary value problems for elliptic equations of arbitrary order
Approximation by time discretization of special stochastic evolution equations.
Approximation de la solution de viscosité d'un problème d'Hamilton-Jacobi.
Approximation des systèmes d'opérateurs pseudodifférentiels
Approximation des valeurs propres de certaines perturbations singulières et application à l'opérateur de Dirac
Approximation d'un problème aux limites elliptique d'ordre deux par éléments finis rationnels de Wachspress avec intégration numérique
Approximation et temps de vie des solutions des équations d'Euler isentropiques en dimension deux d'espace
Approximation in by solutions of quasi-elliptic equations.
Approximation numérique de certaines équations paraboliques non linéaires
Approximation of a degenerated elliptic boundary value problem by a finite element method
Approximation of a fourth order variational inequality
Approximation of a Nondifferentiable Nonlinear Problem Related to MHD Equilibria.
Approximation of a nonlinear thermoelastic problem with a moving boundary via a fixed-domain method
The thermoelastic stresses created in a solid phase domain in the course of solidification of a molten ingot are investigated. A nonlinear behaviour of the solid phase is admitted, too. This problem, obtained from a real situation by many simplifications, contains a moving boundary between the solid and the liquid phase domains. To make the usage of standard numerical packages possible, we propose here a fixed-domain approximation by means of including the liquid phase domain into the problem (in...