INVESTIGADORES
LOMBARDI Ariel Luis
artículos
Título:
Finite element approximation of convection diffusion problems using graded meshes
Autor/es:
RICARDO G. DURÁN; ARIEL L. LOMBARDI
Revista:
APPLIED NUMERICAL MATHEMATICS
Editorial:
Elsevier
Referencias:
Lugar: Amsterdam; Año: 2006 vol. 56 p. 1314 - 1325
ISSN:
0168-9274
Resumen:
We consider the numerical approximation of a model convection-diffusion equation by standard bilinear finite elements. Using appropiately graded meshes we prove optimal error estimates in the epsilon-weighted H^1-norm valid uniformily, up to a logarithmic factor, in the singular perturbation paramenter. Finally, we present some numerical examples showing the good behavior of our method.
