3 papers
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…
gr-qc2020
Slow decay of waves in gravitational solitons
Sharmila Gunasekaran, Hari K. Kunduri
We consider a family of globally stationary (horizonless), asymptotically flat solutions of five-dimensional supergravity. We prove that massless linear scalar waves in such solito…
gr-qc2019
Horizons as boundary conditions in spherical symmetry
Sharmila Gunasekaran, Ivan Booth
We initiate the development of a horizon-based initial (or rather final) value formalism to describe the geometry and physics of the near-horizon spacetime: data specified on the h…