Organized by:
- Michael Anderson (Stony Brook University)
- Dionysios Anninos (King’s College London)
- Damian Galante (King’s College London)
- Edgar Shaghoulian (UC Santa Cruz)
- Eva Silverstein (Stanford University)
Asymptotic boundaries play a crucial role in the theory of general relativity. Foundational examples include the null boundary of asymptotically flat spacetimes and the conformal boundary of Anti-de Sitter space. However, not all physical settings allow for such asymptotic boundaries. In fact, in cosmology one usually encounters compact Cauchy slices or the existence of cosmological event horizons, that prevent observers to reach any type of asymptotic structure. In such circumstances, it is natural to ask whether it is possible to construct a more quasi-local framework by, for instance, the insertion of a finite timelike boundary. This is the main object of study for this workshop, which lies at the interface between mathematics and theoretical physics.