Extinction and Decay Estimates of Solutions for a Class of Porous Medium Equations

  • Wenjun Liu
  • Mingxin Wang
  • Bin Wu
Open Access
Research Article


The extinction phenomenon of solutions for the homogeneous Dirichlet boundary value problem of the porous medium equation Open image in new window , is studied. Sufficient conditions about the extinction and decay estimates of solutions are obtained by using Open image in new window -integral model estimate methods and two crucial lemmas on differential inequality.


Porous Medium Estimate Method Model Estimate Dirichlet Boundary Integral Model 
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Copyright information

© Wenjun Liu et al. 2007

This article is published under license to BioMed Central Ltd. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Authors and Affiliations

  1. 1.Department of MathematicsSoutheast UniversityNanjingChina
  2. 2.College of Mathematics and PhysicsNanjing University of Information Science and TechnologyNanjingChina

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