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SUMMARY:The ins and outs of extremal black holes - Dejan Gajic\, DAMTP\, C
 entre for Mathematical Sciences\, University of Cambridge
DTSTART:20150225T161500Z
DTEND:20150225T171500Z
UID:TALK57853@talks.cam.ac.uk
CONTACT:Ciaran Hughes
DESCRIPTION:In order to gain a complete understanding of black holes in cl
 assical general relativity\, we must first resolve both the issue of stabi
 lity of the exterior region of Kerr black holes and the nature of the sing
 ularity in the interior of a perturbed Kerr black hole. The aim of this ta
 lk is to give an overview of some recent developments towards these issues
 \, by considering the toy problem of a wave equation both outside and insi
 de unperturbed Kerr black holes. In particular\, I will highlight the geom
 etric differences between subextremal and extremal Kerr\, and describe how
  the analysis in the extremal limit suggests more instability in the exter
 ior\, yet more stability in the interior.
LOCATION:CMS\, Potter Room (B1.19) 
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