3 papers
gr-qc2024
surfaces and global coordinates in black hole spacetimes
Bernardo Araneda, Bernard F. Whiting
We present a discussion of the periodicity in imaginary time of maximally extended black hole spacetimes without reference to Euclidean manifolds. As motivation, we first demonstra…
gr-qc2024
Teukolsky equations, twistor functions, and conformally self-dual spaces
Bernardo Araneda
We prove a correspondence, for Riemannian manifolds with self-dual Weyl tensor, between twistor functions and solutions to the Teukolsky equations for any conformal and spin weight…
gr-qc2024
Generalized Siklos space-times
Bernardo Araneda, Ángel J. Murcia
Motivated by supersymmetry methods in general relativity, we study four-dimensional Lorentzian space-times with a complex Dirac spinor field satisfying a Killing-spinor-like equati…