Asymptotic profile of solutions to the two-dimensional dissipative quasi-geostrophic equation

Asymptotic profile of solutions to the two-dimensional dissipative quasi-geostrophic equation
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二维耗散准地转方程解的渐近剖面

DOI:
10.1007/s11425-010-4098-0
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发表时间:
2010-10
影响因子:
1.4
通讯作者:
Liu QingQing
Liu QingQing
中科院分区:
数学1区
文献类型:
--
作者:
Dong BoQing;Liu QingQing

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本文研究二维耗散准地转方程的渐近性态。基于Laplacian算子的谱分解和迭代技巧,我们得到了弱解的改进的L2衰减率,并得到了解的高阶导数的更明确的上界.我们还证明了亚临界准地转方程在大的初始扰动和外部扰动下的渐近稳定性。
This paper is concerned with the asymptotic behavior of the two-dimensional dissipative quasi-geostrophic equation. Based on the spectral decomposition of the Laplacian operator and iterative techniques, we obtain improvedL2decay rates of weak solutions and derive more explicit upper bounds of higher order derivatives of solutions. We also prove the asymptotic stability of the subcritical quasi-geostrophic equation under large initial and external perturbations.
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