Lei-Lin-Gevrey空间中3D- NSE的长时间衰变
Long time decay of 3D-NSE in Lei-Lin-Gevrey spaces
摘要:
本文证明了当$\exp(a|D|^{1/σ})u^0\in{\mathcal{X}}^{-1}(\mathbb R^3)$和$\|u^0\|_{\mathcal{X}^{-1}}<ν$满足时,$3D$ Navier-斯托克斯方程存在唯一整体解.此外,我们将证明,如果时间$t$趋于无穷大,则$\|\exp(a|D|^{1/σ}) u(t)\|_{\mathcal{X}^{-1}}$趋于零。
英文摘要:
In this paper, we prove that there exists a unique global solution of $3D$ Navier-Stokes equation if $\exp(a|D|^{1/σ})u^0\in{\mathcal{X}}^{-1}(\mathbb R^3)$ and $\|u^0\|_{\mathcal{X}^{-1}}<ν$. Moreover, we will show that $\|\exp(a|D|^{1/σ}) u(t)\|_{\mathcal{X}^{-1}}$ goes to zero if the time $t$ goes to infinity.
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