A bstract Conformal Carroll symmetry generically arises on null manifolds and is important
for holography of asymptotically flat spacetimes, generic black hole horizons and …

Carroll symmetry is a very powerful characteristic of generic null surfaces, as it replaces the
usual Poincaré algebra with a vanishing speed of light version thereof. These symmetries …

The conformal extension of the BMS 3 algebra is constructed. Apart from an infinite number
of “superdilatations,” in order to incorporate superspecial conformal transformations, the …

A bstract Two dimensional field theories with Bondi-Metzner-Sachs symmetry have been
proposed as duals to asymptotically flat spacetimes in three dimensions. These field …

A new type of tensionless superstring theory, called the Inhomogeneous tensionless
superstring, has been recently introduced. This is characterised by a residual symmetry …

A bstract We construct the characters for the highest weight representations of the 3d Bondi-
Metzner-Sachs (BMS 3) algebra. We reproduce our character formula by looking at singular …

A bstract Two dimensional field theories invariant under the Bondi-Metzner-Sachs (BMS)
group are conjectured to be dual to asymptotically flat spacetimes in three dimensions. In …

A bstract Flat-space holography requires a thorough understanding of BMS symmetry. We
introduce an oscillator construction of the highest-weight representation of the\({\mathfrak …

Two dimensional field theories with Bondi-Metzner-Sachs symmetry have been proposed as
duals to asymptotically flat spacetimes in three dimensions. These field theories are …

This thesis deals with the application of the holographic principle to asymptotically flat
spacetimes in three dimensions, with a particular focus on higher-spin generalisations of …