2020
DOI: 10.30819/5108
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Existence and Spatial Decay of Periodic Navier–Stokes Flows in Exterior Domains

Abstract: zeigen. Während Lösungen zu diesen Außsenraumproblemen üblicherweise im Rahmen von homogenen Sobolev-Räumen bestimmt werden, ist die Neuheit des vorgestellten Zugangs, dass er einen Rahmen liefert, in dem Lösungen in vollen Sobolev-Räumen nachgewiesen werden.In Kapitel 4 untersuchen wir Problem (NSG) im dreidimensionalen Außenraum Ω unter geeigneten Annahmen an die Daten. Das zugehörige lineare Problem wird in Räumen absolut konvergenter Fourier-Reihen untersucht. Da das zugehörige Resolventenproblem in klassi… Show more

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Cited by 8 publications
(10 citation statements)
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“…Since (4.5) is a problem in the locally compact abelian group G := T × R 3 , we work with multiplier arguments in this group framework. This is more involved compared to the usual Euclidean setting, and for a detailed introduction to this theory, with a focus on the analysis of the Navier-Stokes equations, we refer to the book chapter [6] as well as to the monographs [26,5]. The main tool for the derivation of L q multiplier estimates is the so-called transference principle for multipliers, which goes back to de Leuuw [2] and was generalized by Edwards and Gaudry [3, Theorem B.2.1].…”
Section: The Resolvent Problem In the Whole Spacementioning
confidence: 99%
“…Since (4.5) is a problem in the locally compact abelian group G := T × R 3 , we work with multiplier arguments in this group framework. This is more involved compared to the usual Euclidean setting, and for a detailed introduction to this theory, with a focus on the analysis of the Navier-Stokes equations, we refer to the book chapter [6] as well as to the monographs [26,5]. The main tool for the derivation of L q multiplier estimates is the so-called transference principle for multipliers, which goes back to de Leuuw [2] and was generalized by Edwards and Gaudry [3, Theorem B.2.1].…”
Section: The Resolvent Problem In the Whole Spacementioning
confidence: 99%
“…More recently, the general problem of existence and uniqueness was investigated and successfully settled by several authors [3,4,5,6,8,12,13,18,20,21,24,26,34,35], with approaches and in classes of solutions different from those of [15]. However, unlike [15], all results there established hold under hypotheses on ξ and ω that are rather more restrictive than just their regularity and smallness.…”
Section: Introductionmentioning
confidence: 99%
“…Still keeping ω ≡ 0, in [9,10] the assumption on ξ was relaxed by requiring ξ to be only regular enough and "small." In [3,6] the request ω ≡ 0 is weakened to ω = const., but on condition that ξ = 0 and the period of ξ and b is equal to 2πκ/|ω|, for some κ ∈ Q\{0}. Moreover, at all times, ξ(t) must be parallel to the (constant) direction of ω, with sup t |ξ(t)|, sup t |ξ(t) − ξ| and |ω| "small" enough.…”
Section: Introductionmentioning
confidence: 99%
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