The Navier?Stokes equations in exterior Lipschitz domains: L -theory
The Navier?Stokes equations in exterior Lipschitz domains: L -theory
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Lipschitz 外域中的纳维斯托克斯方程:L 理论
DOI:
10.1016/j.jde.2020.04.015
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发表时间:
2020
影响因子:
2.4
通讯作者:
Watanabe Keiichi
中科院分区:
文献类型:
--
作者:
Tolksdorf Patrick;Watanabe Keiichi
We show that the Stokes operator defined on L σ p (Ω) for an exterior Lipschitz domain Ω⊂ R n (n≥ 3) admits maximal regularity provided that p satisfies| 1/p− 1/2|< 1/(2 n)+ ε for some ε> 0. In particular, we prove that the negative of the Stokes operator generates a bounded analytic semigroup on L σ p (Ω) for such p. In addition, L p-L q-mapping properties of the Stokes semigroup and its gradient with optimal decay estimates are obtained. This enables us to prove the existence of mild solutions to the Navier–Stokes equations in the critical space L∞(0, T; L σ 3 (Ω))(locally in time and globally in time for small initial data).