34 citations · 65 across the 6 of their papers we have counts for
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math.AP2021★ 3 cited
Oscillations in wave map systems and homogenization of the Einstein equations in symmetry
André Guerra, Rita Teixeira da Costa
In 1989, Burnett conjectured that, under appropriate assumptions, the limit of highly oscillatory solutions to the Einstein vacuum equations is a solution of the Einstein--massless…
gr-qc2021★ 15 cited
Hidden spectral symmetries and mode stability of subextremal Kerr(-dS) black holes
Marc Casals, Rita Teixeira da Costa
We uncover hidden spectral symmetries of the Teukolsky equation in Kerr(-de Sitter) black holes, recently conjectured by Aminov, Grassi and Hatsuda (arXiv: 2006.06111 and arXiv: 20…
gr-qc2021★ 8 cited
The Teukolsky--Starobinsky constants: facts and fictions
Rita Teixeira da Costa, Marc Casals
The Teukolsky Master Equation describes the dynamics of massless fields with spin on a Kerr black hole. Under separation of variables, spin-reversal for this equation is accomplish…