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Lars Andersson

2012-04-12
14:00:00 - 15:00:00

101 , Mathematics Research Center Building (ori. New Math. Bldg.)

The problem of nonlinear stability for the Kerr model of a rotating black hole is one of the central problems in general relativity. A proof of decay estimates for test fields with non-zero spin, eg. Maxwell and linearized gravity, on the Kerr background is an important step towards a proof of black hole stability. Fields with non-zero spin on Kerr admit non-radiating modes which must be eliminated in order to prove decay. In this talk I will discuss the relation between conserved charges and hidden symmetries and outline the application of these ideas in proving decay estimates for linearized gravity on Kerr.