Existence of time-periodic strong solutions to the Navier-Stokes equation in the whole space

IF 1.2 3区 数学 Q1 MATHEMATICS
Tomoyuki Nakatsuka
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引用次数: 0

Abstract

In this paper, the existence of time-periodic strong solutions to the Navier-Stokes equation in Rn is established under a suitable smallness condition on the external force. Our analysis is based on splitting periodic solutions into steady and purely periodic parts. One advantage of this decomposition is the availability of slightly more regularity in time of the purely periodic part. We apply this property to construct time-periodic solutions of the Navier-Stokes equation with information on the classes of their steady and purely periodic parts. It is also shown that the small solution v constructed in our existence theorem is unique within a class of time-periodic, not necessarily small, solutions having the same integrability properties as v.
纳维-斯托克斯方程在整个空间中存在时周期强解
本文在外力的适当小度条件下,建立了 Rn 中纳维-斯托克斯方程的时间周期强解的存在性。我们的分析基于将周期解分割为稳定部分和纯周期部分。这种分解方法的一个优点是纯周期部分在时间上的规律性稍强。我们将这一特性应用于构建 Navier-Stokes 方程的时间周期解,并提供其稳定部分和纯周期部分的类别信息。我们还证明,在我们的存在定理中构建的小解 v 在一类时间周期解(不一定是小解)中是唯一的,该类解具有与 v 相同的可积分性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
2.50
自引率
7.70%
发文量
790
审稿时长
6 months
期刊介绍: The Journal of Mathematical Analysis and Applications presents papers that treat mathematical analysis and its numerous applications. The journal emphasizes articles devoted to the mathematical treatment of questions arising in physics, chemistry, biology, and engineering, particularly those that stress analytical aspects and novel problems and their solutions. Papers are sought which employ one or more of the following areas of classical analysis: • Analytic number theory • Functional analysis and operator theory • Real and harmonic analysis • Complex analysis • Numerical analysis • Applied mathematics • Partial differential equations • Dynamical systems • Control and Optimization • Probability • Mathematical biology • Combinatorics • Mathematical physics.
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