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SUMMARY:Oliver Lindblad Petersen (KTH Stockholm)
DTSTART:20230406T133000Z
DTEND:20230406T143000Z
DTSTAMP:20260423T023042Z
UID:jomarec/25
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/jomarec/25/"
 >Wave equations in subextremal Kerr-de Sitter spacetimes</a>\nby Oliver Li
 ndblad Petersen (KTH Stockholm) as part of JoMaReC - Joint Online Mathemat
 ical Relativity Colloquium\n\n\nAbstract\nIn 2013\, Vasy proved that solut
 ions to linear wave equations in Kerr-de Sitter spacetimes have asymptotic
  expansions in quasinormal modes up to an exponentially decaying term\, as
 suming the angular momentum of the black hole satisfies certain bounds. Th
 is was the first step towards the proof of non-linear stability for slowly
  rotating Kerr-de Sitter black holes by Hintz and Vasy in 2018. In this ta
 lk\, we extend Vasy's result to the full subextremal range of Kerr-de Sitt
 er spacetimes\, by removing the restrictions on the angular momentum of th
 e black hole. The proof is based on a new Fredholm setup and a new analysi
 s of the trapping of photons around a Kerr-de Sitter black hole. This is j
 oint work with Andras Vasy.\n
LOCATION:https://researchseminars.org/talk/jomarec/25/
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