3 papers
gr-qc2023
The Scattering Map on Collapsing Charged Spherically Symmetric Spacetimes
Frederick Alford
In this paper we generalise our previous results [1] concerning scattering on the exterior of collapsing dust clouds to the charged case, including in particular the extremal case.…
gr-qc2023
A Rigorous Study of Hawking Radiation on Collapsing Charged Spherically Symmetric Spacetimes
Frederick Alford
In this paper, we give a rigorous mathematical treatment of the late time Hawking radiation of massless bosons emitted by a class of collapsing, spherically symmetric, charged mode…
gr-qc2019
The Scattering Map on Oppenheimer--Snyder Spacetime
Frederick Alford
In this paper we analyse the boundedness of solutions of the wave equation in the Oppenheimer--Snyder model of gravitational collapse in both the case of a reflective dust clou…