Besov regularity for the Stokes and the Navier‐Stokes system in polyhedral domains
Besov regularity for the Stokes and the Navier‐Stokes system in polyhedral domains
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多面体域中斯托克斯和纳维-斯托克斯系统的贝索夫正则性
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发表时间:
2015
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通讯作者:
F. Eckhardt
中科院分区:
文献类型:
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作者:
F. Eckhardt
In this paper we study the regularity of solutions to the Stokes and the Navier‐Stokes system in polyhedral domains contained in ℝ3. We consider the scale Bsτ(Lτ), 1/τ = s/3 + 1/2 of Besov spaces which determines the approximation order of adaptive numerical wavelet schemes and other nonlinear approximation methods. We show that the regularity in this scale is large enough to justify the use of adaptive methods. The proofs of the main results are performed by combining regularity results in weighted Sobolev spaces with characterizations of Besov spaces by wavelet expansions.