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Spectral properties in $L^q$ of an Oseen operator modelling fluid flow past a rotating body

Reinhard Farwig and Jiří Neustupa
Source: Tohoku Math. J. (2) Volume 62, Number 2 (2010), 287-309.

Abstract

We study the spectrum of a linear Oseen-type operator which arises from equations of motion of a viscous incompressible fluid in the exterior of a rotating compact body. We prove that the essential spectrum consists of an infinite set of overlapping parabolic regions in the left half-plane of the complex plane. The full spectrum coincides with the essential and continuous spectrum if the operator is considered in the whole 3D space. Our approach is based on the Fourier transform in the whole space and the transfer of the results to the exterior domain.

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Primary Subjects: 35Q35
Secondary Subjects: 35P99, 76D07
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Links and Identifiers

Permanent link to this document: http://projecteuclid.org/euclid.tmj/1277298650
Digital Object Identifier: doi:10.2748/tmj/1277298650
Zentralblatt MATH identifier: 05780343
Mathematical Reviews number (MathSciNet): MR2663458

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