On the maximum principle for a class of nonlinear parabolicequations


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Abstract

In this paper, we consider solutions of nonlinear parabolic equations in the half-space.It is well-known that, in the case of linear equations, one needs to impose additional conditions on solutions for the validity of the maximum principle. The most famous of them are the conditions of Tikhonov and T¨acklind. We show that such restrictions are not needed for a wide class of nonlinear equations. In so doing, the coefficients of lower-order derivatives can grow arbitrarily as the spatial variables tend to infinity.We give an example which demonstrates an application of the obtained re- sults for nonlinearities of the Emden - Fowler type.

About the authors

A.A. Kon’kov

Lomonosov Moscow State University

Author for correspondence.
Email: morenov.sv@ssau.ru

References


Copyright (c) 2017 А.А. Коньков

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