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DTSTART:20240331T030000
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DTSTAMP:20260426T035203Z
UID:1711034100@ist.ac.at
DTSTART:20240321T161500
DTEND:20240321T171500
DESCRIPTION:Speaker: Borbála Gerhát\nhosted by Robert Seiringer\nAbstract
 : Originating in fluid dynamics\, the study of linear stability of Ekman b
 oundary layers leads to a spectral problem for a non-selfadjoint operator 
 matrix family. We present new enclosures for the point spectrum of this fa
 mily\, thereby solving an open problem on the existence of open sets of ei
 genvalues in domains of Fredholmness posed by L. Greenberg and M. Marletta
  in 2004. Our analysis is based on a Birman–Schwinger type argument whic
 h exploits underlying similarities to Schrödinger operators. The talk is 
 concluded by discussing possible directions of future research in this top
 ic. Based on joint work with O. Ibrogimov and P. Siegl.
LOCATION:Heinzel Seminar Room (I21.EG.101)\, Office Building West\, ISTA\, 
 ISTA
ORGANIZER:birgit.oosthuizen-noczil@ist.ac.at 
SUMMARY:Borbála Gerhát: The spectrum of the Ekman boundary layer problem
URL:https://talks-calendar.ista.ac.at/events/4770
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