3 papers
hep-th2026
Graviton propagation in ghost-free massive gravity
Claudia de Rham, Jan Kożuszek, Andrew J. Tolley +1
We consider the ghost-free dRGT massive gravity with two of its three possible mass terms. This theory has five gravitational degrees of freedom. On Minkowski spacetime these modes…
hep-th2026
Well-posedness of minimal dRGT massive gravity
Jan Kożuszek, Toby Wiseman
Ghost-free dRGT massive gravity is a subtle theory, even at the classical level. Its viability depends on Vainshtein screening, which is an intrinsically non-linear phenomenon, and…
gr-qc2025
Ill-posedness of the Cauchy problem for linearized gravity in a cavity with conformal boundary conditions
Xiaoyi Liu, Harvey S. Reall, Jorge E. Santos +1
We consider Lorentzian General Relativity in a cavity with a timelike boundary, with conformal boundary conditions and also a generalization of these boundary conditions. We focus…