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arXiv 1507.01075math.AP
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地面准地转方程模态的确定

Determining modes for the surface Quasi-Geostrophic equation

Alexey Cheskidov, Mimi Dai

摘要:

我们引入了一个确定的波数的表面准地转(SQG)方程定义为每个单独的轨迹,然后研究其依赖的力量。虽然在亚临界和临界的情况下,这个波数有一个统一的上界,它可能会爆炸时,方程是超临界的。确定波数的边界提供了确定模式,在某种意义上,它测量了流动的自由度的数量,或者描述SQG方程的解所需的分辨率。

英文摘要:

We introduce a determining wavenumber for the surface quasi-geostrophic (SQG) equation defined for each individual trajectory and then study its dependence on the force. While in the subcritical and critical cases this wavenumber has a uniform upper bound, it may blow up when the equation is supercritical. A bound on the determining wavenumber provides determining modes, which in some sense measure the number of degrees of freedom of the flow, or resolution needed to describe a solution to the SQG equation.

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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