2 papers
gr-qc2026
Calculation of a regularized Teukolsky Green function in Schwarzschild spacetime
David Q. Aruquipa, Marc Casals, Brien C. Nolan
We obtain exact expressions for various factors involved in the Hadamard form of the retarded Green function for the (Bardeen-Press-)Teukolsky equation on Schwarzschild spacetime.…
gr-qc2026
Green functions of the Regge-Wheeler and Teukolsky equations in Schwarzschild spacetime
David Q. Aruquipa, Marc Casals
We present a calculation of the full retarded Green functions of the Regge-Wheeler and Teukolsky equations obeyed by gravitational field perturbations of Schwarzschild spacetime. W…