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gr-qc2026
A Physical space derivation of Morawetz-Energy estimates in Kerr spacetimes with large angular momentum
Lili He, Sergiu Klainerman
We revisit the derivation of Morawetz-energy estimates for scalar wave equations in the domain of outer communication of a Kerr spacetime $\KK(a,m)$. Our goal is to develop robust…
gr-qc2023★ 1 cited
The linear stability of weakly charged and slowly rotating Kerr-Newman family of charged black holes
Lili He
In this paper, we prove the linear stability of weakly charged and slowly rotating Kerr-Newman black holes under coupled gravitational and electromagnetic perturbations. We show th…
gr-qc2021
Masses at null infinity for Einstein's equations in harmonic coordinates
Lili He, Hans Lindblad
In this work we give a complete picture of how to in a direct simple way define the mass at null infinity in harmonic coordinates in three different ways that we show satisfy the B…