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Jérémy Besson, « Non-selfadjoint dynamics of black hole perturbations »
mercredi 11 février 2026, 16:00 - 17:00
Orateur : Jérémy Besson (IMB)
Résumé
Evolution systems driven by non-selfadjoint operators present certain genuinely dissipative dynamical features, absent in conservative systems. In this talk, we use complementary time and spectral-domain descriptions of the non-selfadjoint dynamics of a wave propagating on a black hole background to study a conceptual problem for the ringdown of a binary system of black holes.