3 papers
math.DG2026
Conformal boundary rigidity from null geodesic travel times
Gabriel Paternain, Eric Woolgar
The gravitational field of a distant, isolated system is manifested by the conformally invariant Weyl tensor. Thus the conformal structure far from the system encodes the system's…
gr-qc2025
The Penrose singularity theorem, MOTS stability, and horizon topology in weighted spacetimes
Eric Ling, Argam Ohanyan, Eric Woolgar
We consider versions of the Penrose singularity theorem and the Hawking horizon topology theorem in weighted spacetimes that contain weighted versions of trapped surfaces, for arbi…
gr-qc2024
Extreme 5-dimensional black holes with SU(2)-symmetric horizons
Eric Bahuaud, Sharmila Gunasekaran, Hari K Kunduri +1
We show that the near horizon geometry of 5-dimensional extreme (i.e., degenerate) stationary vacuum black holes, with or without cosmological constant, whose event horizons exhibi…