Abstract
The aim of this paper is to study some properties of positive solutions to the nonlinear diffusion equation
Assuming that f is of a bistable type with stable constant steady states 0 and \(c_0 >0\), we show, that there exist a universal, a priori upper bound for all positive solutions of the previous equation. Moreover, we prove the convergence of these solutions to the constant \(c_0\) as t tends to \(+\,\infty \). Some examples where our results can be applied are provided.
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Belhaj Rhouma, N., Seddik, M. Universal bound for global solution of nonlinear heat equation. Positivity 24, 837–854 (2020). https://doi.org/10.1007/s11117-019-00712-1
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DOI: https://doi.org/10.1007/s11117-019-00712-1
Keywords
- Comparison principles
- Liouville Theorem
- Nonlinear parabolic equation
- Positive solution
- Stationary solutions
- Universal bounds