On H1-pullback attractors for nonautonomous micropolar fluid equations in a bounded domain

被引:19
作者
Lukaszewicz, Grzegorz [1 ]
Tarasinska, Agnieszka [1 ]
机构
[1] Univ Warsaw, Dept Math, PL-02957 Warsaw, Poland
关键词
Nonautonomous micropolar fluid equations; Global in time solution; Existence of pullback attractor; PULLBACK ATTRACTORS; GLOBAL ATTRACTORS; EXISTENCE; FLOW;
D O I
10.1016/j.na.2008.10.124
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
Using a method based on the concept of the Kuratowski measure of noncompactness of a bounded set as well as some new estimates of solutions we prove the existence of a unique minimal pullback attractor for the evolutionary process associated with nonautonomous two-dimensional micropolar fluid equations in a bounded domain, where the forces and moments satisfy only a certain integrability condition. In earlier similar research forces and moments were assumed to be uniformly bounded in time. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码:782 / 788
页数:7
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