On the Finite Diffusing Property of the Solutions for a Class of Multidimensional Nonlinear Filtration Equations
Received:August 27, 1997  Revised:May 24, 1999
Key Words: porous medium equations   nonlinear source  
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Author NameAffiliation
LI Hai-feng Zhengzhou Textile Institute, Zhengzhou 450007, China 
CHEN Jin-huan Zhengzhou Textile Institute, Zhengzhou 450007, China 
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Abstract:
      This paper discuss the generaler porous medium equations with strongly nonlinear sources and convections terms, we obtain some properties of finite diffusing speed of solutions for the these equations or existence and expansion of interfaces to the non-negtive weak solutions, using the Harnack inequalities for nonnegtive weak solutions to the these equations.s; convection; nonnegative weak solutions; Harnack inequality; interfaces.
Citation:
DOI:10.3770/j.issn:1000-341X.2000.03.014
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