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SUMMARY:Trapping of Rossby waves in the equatorial betaplane model - Galla
 gher\, I (Universit Paris 7 - Denis-Diderot)
DTSTART:20131202T091500Z
DTEND:20131202T101500Z
UID:TALK49127@talks.cam.ac.uk
CONTACT:Mustapha Amrani
DESCRIPTION:In this talk we shall report on joint works with Christophe Ch
 everry\, Thierry Paul and Laure Saint-Raymond in which we study an equator
 ial shallow water system under the betaplane approximation. We prove that 
 in some asymptotic regimes\, Rossby waves are trapped around the equator w
 hile Poincar waves disperse. This involves the use of microlocal technique
 s related to semiclassical analysis\, such as Mourre estimates\, and some 
 ODE methods. \n
LOCATION:Seminar Room 1\, Newton Institute
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