We find a surprising connection between asymptotically flat spacetimes and nonrelativistic
conformal systems in one lower dimension. The Bondi-Metzner-Sachs (BMS) group is the …

This thesis presents the state of the art in the study of Bondi-Metzner-Sachs (BMS) symmetry
and its applications in the simplified setting of three dimensions. It focuses on presenting all …

A bstract The asymptotic group of symmetries at null infinity of flat spacetimes in three and
four dimensions is the infinite dimensional Bondi-Metzner-Sachs (BMS) group. This has …

We make a detailed study of the infinite dimensional Galilean Conformal Algebra (GCA) in
the case of two spacetime dimensions. Classically, this algebra is precisely obtained from a …

A bstract We argue that generic field theories defined on null manifolds should have an
emergent BMS or conformal Carrollian structure. We then focus on a simple interacting …

A bstract A consistent set of asymptotic conditions for the simplest supergravity theory
without cosmological constant in three dimensions is proposed. The canonical generators …

A bstract We discuss an intriguing link between the symmetries of the tensionless limit of
closed string theory and the 2-dimensional Galilean Conformal Algebra (2d GCA). 2d GCA …

A bstract In this paper we perform the Hamiltonian reduction of the action for three-
dimensional Einstein gravity with vanishing cosmological constant using the Chern-Simons …

Celestial holography: Lectures on asymptotic symmetries Abstract Contents Page 1 SciPost
Phys. Lect.Notes 47 (2022) Celestial holography: Lectures on asymptotic symmetries Prema …

A bstract The asymptotically flat structure of\(\mathcal {N}=\left (2, 0\right)\) supergravity in
three spacetime dimensions is explored. The asymptotic symmetries are found to be …