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gr-qc2026
Black hole evolutions: Lessons from bifurcation theory
Ivan Booth, Graham Cox, Chiamaka Mary Okpala
We explore the role of the stability operator in regulating the evolution of marginally outer trapped surfaces (MOTSs). In 2005, Andersson, Mars and Simon showed that if the stabil…
gr-qc2025
Distorted black ring with rotation on the two-sphere
Matin Tavayef, Shohreh Abdolrahimi, Ivan Booth +1
We construct a stationary black ring spacetime with rotation only along the direction that is free of conical singularities. We use a solution-generating technique to add ext…
gr-qc2024
Distorted static black holes with a bubble
Matin Tavayef, Shohreh Abdolrahimi, Ivan Booth +1
We construct a family of local static, vacuum five-dimensional solutions with two commuting spatial isometries describing a black hole with a horizon and a 2-cycle `bubble' i…