We review the role that infinite-dimensional symmetries arising at the boundary of
asymptotically flat spacetimes play in the context of the celestial holography program. Once …

If a set of massive objects collide in space and the fragments disperse, possibly forming
black holes, then this process will emit gravitational waves. Computing the detailed …

We prove Price's law with an explicit leading order term for solutions ϕ (t, x) of the scalar
wave equation on a class of stationary asymptotically flat (3+ 1)-dimensional spacetimes …

A bstract Starting from gravity in asymptotically flat spacetime, the BMS momentum fluxes
are constructed. These are non-local expressions of the solution space living on the celestial …

A bstract Classical soft graviton theorem gives the gravitational wave-form at future null
infinity at late retarded time u for a general classical scattering. The large u expansion has …

We introduce a novel framework for the analysis of linear wave equations on nonstationary
asymptotically flat spacetimes, under the assumptions of mode stability and absence of zero …

We introduce a general method for understanding the late time tail for solutions to wave
equations on asymptotically flat spacetimes with odd space dimensions. In particular, for a …

We provide a rigorous derivation of the precise late-time asymptotics for solutions to the
scalar wave equation on subextremal Kerr backgrounds, including the asymptotics for …

In this paper, we prove precise late-time asymptotics for solutions to the wave equation
supported on angular frequencies greater or equal to ℓ on the domain of outer …

A bstract In this paper we establish a relation between the non-linearly conserved New-man-
Penrose charges and certain subleading terms in a large-r expansion of the BMS charges in …