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arXiv 1909.08360math.APmath-phmath.MP
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一类大初值阻尼Boussinesq方程的整体光滑解

Global smooth solutions of the damped Boussinesq equations with a class of large initial data

Jinlu Li, Xing Wu, Weipeng Zhu

摘要:

关于无粘Boussinesq方程的整体正则性问题仍然是一个开放的问题。为了理解这个问题,我们研究了阻尼Boussinesq方程,并研究阻尼如何影响解的正则性。本文考虑一类具有大初值的阻尼Boussinesq方程的整体解的存在性,其$B^{s}_{p,r}$或$\dot{B}^{s}_{p,r}$模可以是任意大的.其思想是将线性Boussinesq方程从阻尼Boussinesq方程中分离出来,利用线性Boussinesq方程的指数衰减解和Boussinesq方程的结构,得到整体光滑解.

英文摘要:

The global regularity problem concerning the inviscid Boussinesq equations remains an open problem. In an attempt to understand this problem, we examine the damped Boussinesq equations and study how damping affects the regularity of solutions. In this paper, we consider the global existence to the damped Boussinesq equations with a class of large initial data, whose $B^{s}_{p,r}$ or $\dot{B}^{s}_{p,r}$ norms can be arbitrarily large. The idea is splitting the linear Boussinesq equations from the damped Boussinesq equations, the exponentially decaying solution of the former equations together with the structure of the Boussinesq equations help us to obtain the global smooth solutions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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