Hostname: page-component-7b7567c8c-7pwfn Total loading time: 0 Render date: 2026-11-12T09:25:19.354Z Has data issue: false hasContentIssue false

Finite element approximation for degenerate parabolic equations. an application of nonlinear semigroup theory

Published online by Cambridge University Press:  15 August 2005

Akira Mizutani
Affiliation:
Department of Mathematics, Faculty of Science, Gakushuin University, 1-5-1 Mejiro, Toshima-ku, Tokyo 171-8588, Japan.
Norikazu Saito
Affiliation:
Faculty of Education, Toyama University, 3190 Gofuku, Toyama 930-8555, Japan. saito@edu.toyama-u.ac.jp
Takashi Suzuki
Affiliation:
Division of Mathematical Science, Department of System Innovation, Graduate School of Engineering Science, Osaka University, 1-1 Machikaneyama, Toyonaka, 560-0043, Japan.
Get access

Abstract

Finite element approximation for degenerate parabolic equations is considered. We propose a semidiscrete scheme provided with order-preserving and L 1 contraction properties, making use of piecewise linear trial functions and the lumping mass technique. Those properties allow us to apply nonlinear semigroup theory, and the wellposedness and stability in L 1 and L ∞, respectively, of the scheme are established. Under certain hypotheses on the data, we also derive L 1 convergence without any convergence rate.The validity of theoretical results is confirmed by numerical examples.

Information

Type
Research Article
Copyright
© EDP Sciences, SMAI, 2005

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable