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JOURNALS // Sibirskii Matematicheskii Zhurnal // Archive

Sibirsk. Mat. Zh., 2012 Volume 53, Number 2, Pages 365–376 (Mi smj2311)

This article is cited in 2 papers

The maximum and comparison principles for a system of two equations

D. V. Portnyagin

Institute for Condensed Matter Physics, National Academy of Sciences of Ukraine, L'vov, Ukraine

Abstract: We propose a method of generalizing the well-known maximum and comparison principles to nondiagonal parabolic systems of second order nonlinear differential equations. Under consideration are the cases of Dirichlet and Neumann problems. We also present some examples of the systems that this method applies to.

Keywords: nondiagonal parabolic system, nondiagonal elliptic system, maximum principle, comparison principle.

UDC: 517.956.2

Received: 11.11.2010


 English version:
Siberian Mathematical Journal, 2012, 53:2, 291–300

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© Steklov Math. Inst. of RAS, 2026