Quasinormal modes on asymptotically flat spacetimes

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• Dejan Gajic (Leipzig)
• Monday 13 May 2024, 14:00-15:00
• MR13.

If you have a question about this talk, please contact Dr Greg Taujanskas.

Quasinormal modes (QNMs) are damped oscillations that play an important role in the dynamics of perturbations of stationary black hole spacetimes. They are governed by frequencies that are characteristic to the black hole under consideration, much like how the overtones of a vibrating drumhead depend on its particular shape. Although extensively featured in the physics literature for over fifty years, a clear and broadly applicable mathematical definition of QNMs on asymptotically flat spacetimes has remained elusive. In this talk, I will briefly introduce initial attempts at defining QNMs and then I will present upcoming work (with C. Warnick) on the characterisation of QNMs on general stationary and asymptotically flat spacetimes.

This talk is part of the Partial Differential Equations seminar series.

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