Publications
2001
Issue 48

MiS Preprint Repository

We have decided to discontinue the publication of preprints on our preprint server end of 2024. The publication culture within mathematics has changed so much due to the rise of repositories such as ArXiV (www.arxiv.org) that we are encouraging all institute members to make their preprints available there. An institute's repository in its previous form is, therefore, unnecessary. The preprints published to date will remain available here, but we will not add any new preprints here.

MiS Preprint

48/2001

Nonlinear Diffusion in Irregular Domains

Ugur G. Abdulla

Abstract

We investigate the Dirichlet problem for the parablic equation $u_{i} = Δ u^{m}, m > 0$ in a non-smooth domain $Ω \subset R^{N + 1}, N \geq 2$ . In a recent paper [U.G.Abdulla, J. Math. Anal. Appl., 260, 2 (2001)] existence and boundary regularity results were established. In this paper we present uniqueness and comparison theorems and results on the continuous dependence of the solution on the initial-boundary data. In particular, we prove $L_{1}$ -contraction estimation in general non-smooth domains.

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Received:: 01.08.01

Published:: 01.08.01

MSC Codes:: 35K65, 35K55

Keywords:: dirichlet problem, non-smooth domains, nonlinear diffusion, degenerate and singular parabolic equations, uniqueness and comparison results, l1-contraction, boundary gradient estimates

Related publications

inBook

2002 Repository Open Access

Ugur G. Abdulla

Nonlinear diffusion in irregular domains

In: Elliptic and parabolic problems
River Edge, NJ [u.a.] : World Scientific, 2002. - pp. 302-310

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