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arXiv 1507.05992math.AP
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三维粘性原始方程解的整体吸引子的有限收敛性

Finite Dimensionality of the Global Attractor for the Solutions to 3D Primitive Equations with Viscosity

Ning Ju

摘要:

本文给出了一种新的方法,证明了三维粘性原始方程强解的整体吸引子的分形维数和豪斯多夫维数的有限性,该方法比文[7]的结果适用于更一般的情况,因为它消除了以往分析所施加的所有额外技术条件.更具体地说,对于整体吸引子维数的有限性,我们只需要热源$Q\in L^2$,它正好是整体强解存在的条件,也是这些解的整体吸引子存在的条件;而最近在[7]中得到的现有最佳结果,对于整体吸引子维数的有限性,仍然需要$\partial_z Q\in L^2 $这一额外条件.此外,新的方法可以适用于更复杂的边界条件的情况下,目前的本质困难,以前的方法。

英文摘要:

A new method is presented to prove finiteness of the fractal and Hausdorff dimensions of the global attractor for the strong solutions to the 3D Primitive Equations with viscosity, which is applicable to even more general situations than the recent result of [7] in the sense that it removes all extra technical conditions imposed by previous analyses. More specifically, for finiteness of the dimensions of the global attractor, we only need the heat source $Q\in L^2$ which is exactly the condition for the existence of global strong solutions and the existence of the global attractor of these solutions; while the best existing result, which was obtained very recently in [7], still needs the extra condition that $\partial_z Q\in L^2 $ for finiteness of the dimensions of the global attractor. Moreover, the new method can be applied to cases with more complicated boundary conditions which present essential difficulties for previous methods.

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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