3 papers
gr-qc2026
Semilinear wave equations on the Witten bubble spacetime
Onyx Gautam
We initiate the study of nonlinear wave equations on the Witten bubble spacetime (also known as the "bubble of nothing"), which is an -symmetr…
math.AP2026
Late-time tails for linear waves on radially symmetric stationary spacetimes of two space dimensions
Onyx Gautam
We show that the leading-order term in the late-time asymptotics of solutions to the linear wave equation on radially symmetric stationary perturbations of -dimensional Mi…
gr-qc2024
Late-time tails and mass inflation for the spherically symmetric Einstein-Maxwell-scalar field system
Onyx Gautam
We establish a decay result in the black hole exterior region of spherically symmetric solutions to the Einstein-Maxwell-scalar field system arising from compactly supported admiss…