https://mathematics.stanford.edu/events/quasinormal-modes-approach-extremality
Quasinormal modes: the approach to extremality | Mathematics
Abstract: It is now an observational fact that perturbed black holes produce radiation at fixed (complex) frequencies which are characteristic of the spacetime...
the approachmodesmathematics
https://itmp.msu.ru/news/itmp-seminar-semiclassics-branes-and-extremality
ITMP Seminar "Semiclassics, branes, and extremality"
Speaker: Dr. Adolfo Holguin, Trinity Coll., Dublin
itmpseminarbranes