4 papers
A Formal Framework for Critical-Mass Collapse in Online Multiplayer Games
Ahmed Sheta
Online multiplayer games are population-dependent systems whose playability depends on the continued presence of an active player base. We propose a formal framework for reasoning…
Soft Algebras in AdS from Light Ray Operators in CFT
Ahmed Sheta, Andrew Strominger, Adam Tropper +1
Flat Minkowski space (M) and AdS can both be conformally mapped to the Einstein cylinder. The maps may be judiciously chosen so that some null generators of the $\mathcal{I…
Data Augmentation via Latent Diffusion Models for Detecting Smell-Related Objects in Historical Artworks
Ahmed Sheta, Mathias Zinnen, Aline Sindel +2
Finding smell references in historic artworks is a challenging problem. Beyond artwork-specific challenges such as stylistic variations, their recognition demands exceptionally det…
pp-Waves and the Hidden Symmetries of Black Hole Quasinormal Modes
Daniel Kapec, Ahmed Sheta
There are two interesting classes of trapped null geodesics in any black hole spacetime: those that lie on the photon ring and those that generate the horizon. Recent work introduc…