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arXiv 1410.7486math.AP
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混合Besov空间中不可压Oldroom-B模型的整体解

Global solution to the incompressible Oldroyd-B model in hybrid Besov spaces

Ruizhao Zi

摘要:

本文研究了具有一般耦合常数$\om\in (0,1)$的不可压Oldrophil-B模型的Cauchy问题。证明了在具有$-\fr{d}{2}<s<\fr{d}{2}-1$的$\dot{H}^s\cap\dot{B}^{\fr{d}{2}}_{2,1}$中,对于小的初始数据,这组方程在一定的混合Besov空间中存在唯一的整体解.特别是,如果$d\ge3,$和服用$s=0$,则为$\dot{H}^0\cap\dot{B}^{\fr{d}{2}}_{2,1}\approx B^{\fr{d}{2}}_{2,1}$。自$B^{s}_{2,\infty}\hookrightarrow B^{\fr{d}{2}}_{2,1}, s>\fr{d}{2}$以来,这一结果推广了Chen和Miao的工作[Nonlinear Anal.,(2008年),1928- 1939年]。

英文摘要:

This paper is dedicated to the Cauchy problem of the incompressible Oldroyd-B model with general coupling constant $\om\in (0,1)$. It is shown that this set of equations admits a unique global solution in a certain hybrid Besov spaces for small initial data in $\dot{H}^s\cap\dot{B}^{\fr{d}{2}}_{2,1}$ with $-\fr{d}{2}<s<\fr{d}{2}-1$. In particular, if $d\ge3,$ and taking $s=0$, then $\dot{H}^0\cap\dot{B}^{\fr{d}{2}}_{2,1}\approx B^{\fr{d}{2}}_{2,1}$. Since $B^{s}_{2,\infty}\hookrightarrow B^{\fr{d}{2}}_{2,1}, s>\fr{d}{2}$, this result extends the work by Chen and Miao [Nonlinear Anal.,{68}(2008), 1928--1939].

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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