On the asymptotic behavior of solution for the generalized IBq equation with hydrodynamical damped term

On the asymptotic behavior of solution for the generalized IBq equation with hydrodynamical damped term
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含流体动力阻尼项的广义IBq方程解的渐近行为

DOI:
10.1016/j.jde.2011.12.016
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发表时间:
2012-04
影响因子:
2.4
通讯作者:
Xu Huiyang
Xu Huiyang
中科院分区:
数学2区
文献类型:
--
作者:
Wang Shubin;Xu Huiyang

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研究了n维空间中带流体动力阻尼项的广义IBq方程的Cauchy问题。我们观察到线性化方程的耗散结构是正则损失型的。这意味着在初始数据的附加正则性假设下,我们得到了解的最优衰减估计。在初始值很小的条件下,证明了Sobolev空间中小振幅解的整体存在性和衰减性。
We study the Cauchy problem for the generalized IBq equation with hydrodynamical damped term in n-dimensional space. We observe that the dissipative structure of the linearized equation is of the regularity-loss type. This means that we have the optimal decay estimates of solutions under the additional regularity assumption on the initial data. Under smallness condition on the initial data, we prove the global existence and decay of the small amplitude solution in the Sobolev space.
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