University of Cambridge > > DAMTP Friday GR Seminar > Revisiting mode stability for Kerr(-dS) black holes

Revisiting mode stability for Kerr(-dS) black holes

Add to your list(s) Download to your calendar using vCal

If you have a question about this talk, please contact Justin Ripley.

The Teukolsky master equations are a family of PDEs describing the linear behavior of perturbations of the Kerr black hole family, of which the wave equation is a particular case. As a first essential step towards stability, Whiting showed in 1989 that the Teukolsky equation on subextremal Kerr admits no exponentially growing modes.

In this talk, we review Whiting’s classical proof and a recent adaptation thereof to the extremal Kerr case. We also present a new approach to mode stability, based on uncovering hidden spectral symmetries in the Teukolsky equations. Part of this talk is based on joint work with Marc Casals (CBPF/UCD).

Topic: Friday GR Seminar

Time: Oct 22, 2021 01:30 PM London

Meeting ID: 996 8014 1835

Passcode: 635710

This talk is part of the DAMTP Friday GR Seminar series.

Tell a friend about this talk:

This talk is included in these lists:

Note that ex-directory lists are not shown.


© 2006-2023, University of Cambridge. Contact Us | Help and Documentation | Privacy and Publicity