3 papers
math.AP2026
Scattering and stability for ODE-type blow-up surfaces for focusing nonlinear wave equations
Istvan Kadar, Warren Li
We study the focusing power nonlinear wave equation with any power, in Minkowski space of any spacetime dimension. We present a complete understanding of the local stability and sc…
gr-qc2025
Kasner-like description of spacelike singularities in spherically symmetric spacetimes with scalar matter
Warren Li
We study the properties of spacelike singularities in spherically symmetric spacetimes obeying the Einstein equations, in the presence of matter. We consider in particular matter d…
gr-qc2025
Kasner bounces and fluctuating collapse inside hairy black holes with charged matter
Warren Li, Maxime Van de Moortel
We study the interior of black holes in the presence of charged scalar hair of small amplitude on the event horizon and show their terminal boundary is a crushing Kasner-like…