Starting with a gentle approach to the Alday–Gaiotto–Tachikawa (AGT) correspondence
from its 6d origin, these notes provide a wide (albeit shallow) survey of the literature on …

We give explicit expressions for the finite frequency greybody factor, quasinormal modes,
and Love numbers of Kerr black holes by computing the exact connection coefficients of the …

A bstract We exploit the recently proposed correspondence between gravitational
perturbations and quantum Seiberg-Witten curves to compute the spectrum of quasi-normal …

A bstract We study black hole linear perturbation theory in a four-dimensional Schwarzschild
(anti) de Sitter background. When dealing with a positive cosmological constant, the …

A bstract Using conformal field theory and localization tecniques we study the propagation of
scalar waves in gravity backgrounds described by Schrödinger like equations with Fuchsian …

We present new analytic results on black hole perturbation theory. Our results are based on
a novel relation to four-dimensional N= 2 N= 2 supersymmetric gauge theories. We propose …

A bstract We study the quasinormal modes (QNM) of the charged C-metric, which physically
stands for a charged accelerating black hole, with the help of Nekrasov's partition function of …

A bstract Using the AGT correspondence and localization, we derive a combinatorial formula
for the Post-Newtonian expansion of the wave form describing the gravitational emission …

In the context of the dynamics and stability of black holes in modified theories of gravity, we
derive the Teukolsky equations for massless fields of all spins in general spherically …

This note addresses quasinormal mode (QNM) frequencies of four-dimensional
asymptotically de Sitter rotating black holes. The main motivation is that Mathematica 12.1 …