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TZID:Europe/Paris
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DTSTART:20230326T010000
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DTSTART:20231029T010000
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DTSTART;TZID=Europe/Paris:20230926T093000
DTEND;TZID=Europe/Paris:20230926T123000
DTSTAMP:20260427T052403
CREATED:20230830T100228Z
LAST-MODIFIED:20230925T060105Z
UID:16715-1695720600-1695731400@www.math.ens.psl.eu
SUMMARY:Global axisymmetric Euler flows with rotation
DESCRIPTION:We discuss the construction of a class of global\, dynamical solutions to the 3d Euler equations near the stationary state given by uniform « rigid body » rotation. These solutions are axisymmetric\, of Sobolev regularity and have non-vanishing swirl. \nAt the heart of this result is a dispersive effect due to rotation\, which we discuss with some context. In our approach\, it is captured in a « method of partial symmetries »\, which is adapted to maximally exploit the symmetries of this anisotropic problem\, both for the linear and nonlinear analysis\, and allows to globally propagate sharp decay estimates. \nThis is joint work with Y. Guo and B. Pausader (Brown University).
URL:https://www.math.ens.psl.eu/evenement/klaus-widmayer/
LOCATION:Jussieu —  salle 15-16-309\, 4 Place Jussieu\, Paris\, 75005\, France
CATEGORIES:Séminaire Analyse non linéaire et EDP
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