Preservation of convexity of solutions to parabolic equations

被引:26
作者
Janson, S [1 ]
Tysk, J [1 ]
机构
[1] Uppsala Univ, Dept Math, SE-75106 Uppsala, Sweden
关键词
parabolic equation; convexity;
D O I
10.1016/j.jde.2004.07.016
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
In the present paper we find necessary and sufficient conditions on the coefficients of a parabolic equation for convexity to be preserved. A parabolic equation is said to preserve convexity if given a convex initial condition, any solution of moderate growth remains a convex function of the spatial variables for each fixed time. (C) 2004 Elsevier Inc. All rights reserved.
引用
收藏
页码:182 / 226
页数:45
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