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Solutions in the large for certain nonlinear parabolic equations and applications*

Published online by Cambridge University Press:  14 November 2011

Huijiang Zhao
Affiliation:
Young Scientist Laboratory of Mathematical Physics, Institute of Mathematical Sciences, Chinese Academy of Sciences, P.O. Box 71007, Wuhan 430071, People's Republic of China
Changjiang Zhu
Affiliation:
Young Scientist Laboratory of Mathematical Physics, Institute of Mathematical Sciences, Chinese Academy of Sciences, P.O. Box 71007, Wuhan 430071, People's Republic of China

Abstract

We prove some results on the global existence of smooth solutions for certain nonlinear parabolic systems of the form Ut + A(U)Ux = DUxx. Here U is a vector and A(U), D are matrices with D a constant, positive matrix. We show how to use our results to study the global continuous (or generalised) solutions to the corresponding nonlinear hyperbolic conservation laws and a conjecture is given.

Type
Research Article
Copyright
Copyright © Royal Society of Edinburgh 1996

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