2 papers
gr-qc2024
Phase spaces and symmetries of Vaidya superspace
Salvatore Ribisi, Francesco Sartini
We investigate the classical symmetries of the dynamics of the null-dust spherically symmetric Vaidya spacetime. Einstein's equations for this model can be obtained as equations of…
gr-qc2023
Regularized Black Holes from Doubled FLRW Cosmologies
Marc Geiller, Etera R. Livine, Francesco Sartini
Reduced general relativity for four-dimensional spherically-symmetric stationary space-times, more simply called the black hole mini-superspace, was shown in previous work to admit…