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Global Existence and Blow-Up for a Class of Degenerate Parabolic Systems with Localized Source

Global Existence and Blow-Up for a Class of Degenerate Parabolic Systems with Localized Source This paper deals with a class of localized and degenerate quasilinear parabolic systems $$u_t=f(u)(\Delta u+av(x_0,t)),\qquad v_t=g(v)(\Delta v+bu(x_0,t))$$ with homogeneous Dirichlet boundary conditions. Local existence of positive classical solutions is proven by using the method of regularization. Global existence and blow-up criteria are also obtained. Moreover, the authors prove that under certain conditions, the solutions have global blow-up property. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Acta Applicandae Mathematicae Springer Journals

Global Existence and Blow-Up for a Class of Degenerate Parabolic Systems with Localized Source

Acta Applicandae Mathematicae , Volume 112 (2) – Feb 5, 2010

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References (24)

Publisher
Springer Journals
Copyright
Copyright © 2010 by Springer Science+Business Media B.V.
Subject
Mathematics; Mechanics; Statistical Physics, Dynamical Systems and Complexity; Theoretical, Mathematical and Computational Physics; Computer Science, general; Mathematics, general
ISSN
0167-8019
eISSN
1572-9036
DOI
10.1007/s10440-010-9563-9
Publisher site
See Article on Publisher Site

Abstract

This paper deals with a class of localized and degenerate quasilinear parabolic systems $$u_t=f(u)(\Delta u+av(x_0,t)),\qquad v_t=g(v)(\Delta v+bu(x_0,t))$$ with homogeneous Dirichlet boundary conditions. Local existence of positive classical solutions is proven by using the method of regularization. Global existence and blow-up criteria are also obtained. Moreover, the authors prove that under certain conditions, the solutions have global blow-up property.

Journal

Acta Applicandae MathematicaeSpringer Journals

Published: Feb 5, 2010

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