3 papers
gr-qc2026
Conservation law of super-Lorentz charges across spatial infinity
Geoffrey Compère, Geoffrey Compère, Sébastien Robert +1
Under assumptions compatible with generic gravitational scattering, the vacuum relativistic gravitational field is entirely determined at leading order in the large radius expansio…
hep-th2026
A proof of conservation laws in gravitational scattering: tails and breaking of peeling
Geoffrey Compère, Geoffrey Compère, Sébastien Robert +1
We propose a definition of asymptotically flat spacetimes that is consistent with both null infinities and compatible with known properties of gravitational scattering, incoming an…
hep-th2026
Scalar, vector and tensor fields on with arbitrary sources: harmonic analysis and antipodal maps
Geoffrey Compère, Sébastien Robert
The scalar, vector and tensor spherical harmonics on three-dimensional de Sitter spacetime are defined and analyzed. Each harmonic defines two sets of asymptotic data on the two sp…