2 papers
gr-qc2026
The extremely-tilted fluid regime near asymptotically Kasner big bang singularities
Florian Beyer
In this paper, we solve the relativistic Euler equations with a linear barotropic equation of state on a large class of background spacetimes with Kasner big bang asymptotics. Buil…
gr-qc2025
Localized past stability of the subcritical Kasner-scalar field spacetimes
F. Beyer, T. A. Oliynyk, W. Zheng
We prove the nonlinear stability, in the contracting direction, of the entire subcritical family of Kasner-scalar field solutions to the Einstein-scalar field equations in four spa…