Local existence and blow-up criterion for the generalized Boussinesq equations in Besov spaces

被引:13
|
作者
Qiu, Hua [1 ]
Du, Yi [2 ]
Yao, Zheng'an [3 ]
机构
[1] S China Agr Univ, Dept Appl Math, Guangzhou 510642, Guangdong, Peoples R China
[2] S China Normal Univ, Sch Math Sci, Guangzhou 510631, Guangdong, Peoples R China
[3] Sun Yat Sen Univ, Sch Math & Computat Sci, Guangzhou 510275, Guangdong, Peoples R China
关键词
generalized Boussinesq equations; regularity criterion; local existence; Littlewood-Paley decomposition; GLOBAL WELL-POSEDNESS; PARTIAL VISCOSITY; MHD EQUATIONS; REGULARITY; SYSTEM;
D O I
10.1002/mma.2573
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
In this paper, we consider the three-dimensional generalized Boussinesq equations, a system of equations resulting from replacing the Laplacian?-?? in the usual Boussinesq equations by a fractional Laplacian (?-??)a. We prove the local existence in time and obtain a regularity criterion of solution for the generalized Boussinesq equations by means of the LittlewoodPaley theory and Bony's paradifferential calculus. The results in this paper can be regarded as an extension to the Serrin-type criteria for NavierStokes equations and magnetohydrodynamics equations, respectively. Copyright (c) 2012 John Wiley & Sons, Ltd.
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页码:86 / 98
页数:13
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