Solution of a polylocal problem using Tchebychev polynomials.
Solving a system of second order obstacle problems by a modified decomposition method.
Solving two-point boundary value problems for the non monic regular matrix differential equation
Some comparisons of difference schemes on meshes of Shishkin and Bakhvalov type.
Some properties of the discontinuous Galerkin method for one-dimensional singularly perturbed problems.
Some results about the pseudospectral approximation of one-dimensional fourth-order problems.
Spectral approximation for inner and outer solution of some SPP.
Spectral properties of the Klein–Gordon -wave equation with spectral parameter-dependent boundary condition.
Spline solution of some linear boundary value problems.
Spline-wavelet solution of singularly perturbed boundary problem
SPP with discontinuous function and spectral approximation.
Strong convergence estimates for pseudospectral methods
Strong convergence estimates for pseudospectral methods applied to ordinary boundary value problems are derived. The results are also used for a convergence analysis of the Schwarz algorithm (a special domain decomposition technique). Different types of nodes (Chebyshev, Legendre nodes) are examined and compared.
Su un problema ai limiti per certe equazioni astratte del secondo ordine
Sufficient Conditions for Uniform Convergence of a Class of Spline Difference Schemes for Singularly Perturbed Problems
Superconvergence of external approximation for two-point boundary problems
The superconvergence property of a certain external method for solving two point boundary value problems is established. In the case when piecewise polynomial spaces are applied, it is proved that the convergence rate of the approximate solution at the knot points can exceed the global one.
Sur l'analyse algébrique I
Sur l'analyse algébrique II
Sur un problème de perturbation singulière (I): Elasticité.
Este trabajo está consagrado al estudio de un problema de perturbación singular que aparece en la teoría de la elasticidad.
Sur un problème de perturbation singulière (II): Elasticité.
Este artículo es continuación de (I). Está consagrado al estudio de un problema de perturbación singular proveniente de la teoría de la elasticidad.
System of differential equations with unstable turning point and multiple element of spectrum of degenerate operator