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JOURNALS // Matematicheskii Sbornik // Archive

Mat. Sb., 2007 Volume 198, Number 5, Pages 45–66 (Mi sm1556)

This article is cited in 18 papers

$L_1$$L_\infty$ estimates of solutions of the Cauchy problem for an anisotropic degenerate parabolic equation with double non-linearity and growing initial data

S. P. Degtyarev, A. F. Tedeev

Institute of Applied Mathematics and Mechanics, Ukraine National Academy of Sciences

Abstract: The Cauchy problem for a degenerate parabolic equation with anisotropic $p$-Laplacian and double non-linearity is considered. For increasing initial data local estimates for the $L_\infty$-norm of a solution are obtained, which yield a precise characterization of the growth of solutions at infinity. An estimate for the order of the length of the time interval on which a solution is defined is found in its dependence on the initial data.
Bibliography: 12 titles.

UDC: 517.956.45

MSC: 35K55, 35K65, 35B45

Received: 10.04.2006 and 15.12.2006

DOI: 10.4213/sm1556


 English version:
Sbornik: Mathematics, 2007, 198:5, 639–660

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