On a Partial Boundary Value Condition of a Porous Medium Equation with Exponent Variable

The initial-boundary value problem of a porous medium equation with a variable exponent is considered. Both the diffusion coefficient ax,t and the variable exponent px,t depend on the time variable t, and this makes the partial boundary value condition not be expressed as the usual Dirichlet boundar...

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Main Author: Huashui Zhan
Format: Article
Language:English
Published: Hindawi Limited 2020-01-01
Series:Discrete Dynamics in Nature and Society
Online Access:http://dx.doi.org/10.1155/2020/2929045
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spelling doaj-e70436fb1cf44484a75c906463d2c8012020-11-25T02:59:32ZengHindawi LimitedDiscrete Dynamics in Nature and Society1026-02261607-887X2020-01-01202010.1155/2020/29290452929045On a Partial Boundary Value Condition of a Porous Medium Equation with Exponent VariableHuashui Zhan0School of Applied Mathematics, Xiamen University of Technology, Xiamen 361024, ChinaThe initial-boundary value problem of a porous medium equation with a variable exponent is considered. Both the diffusion coefficient ax,t and the variable exponent px,t depend on the time variable t, and this makes the partial boundary value condition not be expressed as the usual Dirichlet boundary value condition. In other words, the partial boundary value condition matching up with the equation is based on a submanifold of ∂Ω×0,T. By this innovation, the stability of weak solutions is proved.http://dx.doi.org/10.1155/2020/2929045
collection DOAJ
language English
format Article
sources DOAJ
author Huashui Zhan
spellingShingle Huashui Zhan
On a Partial Boundary Value Condition of a Porous Medium Equation with Exponent Variable
Discrete Dynamics in Nature and Society
author_facet Huashui Zhan
author_sort Huashui Zhan
title On a Partial Boundary Value Condition of a Porous Medium Equation with Exponent Variable
title_short On a Partial Boundary Value Condition of a Porous Medium Equation with Exponent Variable
title_full On a Partial Boundary Value Condition of a Porous Medium Equation with Exponent Variable
title_fullStr On a Partial Boundary Value Condition of a Porous Medium Equation with Exponent Variable
title_full_unstemmed On a Partial Boundary Value Condition of a Porous Medium Equation with Exponent Variable
title_sort on a partial boundary value condition of a porous medium equation with exponent variable
publisher Hindawi Limited
series Discrete Dynamics in Nature and Society
issn 1026-0226
1607-887X
publishDate 2020-01-01
description The initial-boundary value problem of a porous medium equation with a variable exponent is considered. Both the diffusion coefficient ax,t and the variable exponent px,t depend on the time variable t, and this makes the partial boundary value condition not be expressed as the usual Dirichlet boundary value condition. In other words, the partial boundary value condition matching up with the equation is based on a submanifold of ∂Ω×0,T. By this innovation, the stability of weak solutions is proved.
url http://dx.doi.org/10.1155/2020/2929045
work_keys_str_mv AT huashuizhan onapartialboundaryvalueconditionofaporousmediumequationwithexponentvariable
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