collaborators

5 papers

math.AP2026

Teukolsky on slowly-rotating Kerr-de Sitter in the vanishing limit

Allen Juntao Fang, Jérémie Szeftel, Arthur Touati

As a first step towards resolving a vanishing cosmological constant black hole stability conjecture, we prove energy, Morawetz and rp-weighted estimates for solutions to the Teukol…

math.AP2026

Energy-Morawetz estimates for Teukolsky equations in perturbations of Kerr

Siyuan Ma, Jérémie Szeftel

In this paper, we prove energy and Morawetz estimates for solutions to Teukolsky equations in spacetimes with metrics that are perturbations, compatible with nonlinear applications…

math.AP2026

Energy-Morawetz estimates for the wave equation in perturbations of Kerr

Siyuan Ma, Jérémie Szeftel

In this paper, we prove energy and Morawetz estimates for solutions to the scalar wave equation in spacetimes with metrics that are perturbations, compatible with nonlinear applica…

math.AP2025

Spacelike initial data for black hole stability

Allen Juntao Fang, Jérémie Szeftel, Arthur Touati

We construct initial data suitable for the Kerr stability conjecture, that is, solutions to the constraint equations on a spacelike hypersurface with boundary entering the black ho…

math.AP2025

Initial data for Minkowski stability with arbitrary decay

Allen Juntao Fang, Jérémie Szeftel, Arthur Touati

We construct and parametrize solutions to the constraint equations of general relativity in a neighborhood of Minkowski spacetime with arbitrary prescribed decay properties at infi…