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SUMMARY:Conservation laws and late-time tails of waves on black holes - De
 jan Gajic ( DAMTP\, Centre for Mathematical Sciences\, University of Cambr
 idge)
DTSTART:20180223T130000Z
DTEND:20180223T140000Z
UID:TALK101113@talks.cam.ac.uk
CONTACT:Michalis Agathos
DESCRIPTION:In 1972\, Price suggested that polynomial tails should be pres
 ent in the late-time behaviour of scalar fields on Schwarzschild black hol
 es. In the decades since\, many features of these tails have been explored
  both numerically and heuristically in more general settings. The presence
  of polynomial tails along event horizons has important implications for t
 he nature of singularities inside dynamical black holes. In this talk I wi
 ll discuss recent work in collaboration with Y. Angelopoulos and S. Aretak
 is that establishes rigorously the existence of these polynomial late-time
  tails. I will moreover describe how late-time tails are connected to the 
 existence of conservation laws for scalar fields in asymptotically flat sp
 acetimes.
LOCATION:Pavilion B Potter Room (B1.19)
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