Boundedness of Global Solutions for a Heat Equation with Exponential Gradient Source

Zhengce Zhang and Yanyan Li

Abstract and Applied Analysis, 2012, vol. 2012, 1-10

Abstract:

We consider a one-dimensional semilinear parabolic equation with exponential gradient source and provide a complete classification of large time behavior of the classical solutions: either the space derivative of the solution blows up in finite time with the solution itself remaining bounded or the solution is global and converges in norm to the unique steady state. The main difficulty is to prove boundedness of all global solutions. To do so, we explicitly compute a nontrivial Lyapunov's functional by carrying out the method of Zelenyak.

Date: 2012
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jnlaaa:398049

DOI: 10.1155/2012/398049

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