23 citations · 68 across the 7 of their papers we have counts for
7 papers
G-algebroids: a unified framework for exceptional and generalised geometry, and Poisson-Lie duality
Mark Bugden, Ondrej Hulik, Fridrich Valach +1
We introduce the notion of G-algebroid, generalising both Lie and Courant algebroids, as well as the algebroids used in exceptional generalised geometr…
Trapped photons in Schwarzschild-Tangherlini spacetimes
Mark Bugden
We study the set of trapped photons outside the event horizon of Schwarzschild-Tangherlini black holes in dimension . We prove that the only trapped photons are those with…
A Tour of T-duality: Geometric and Topological Aspects of T-dualities
Mark Bugden
The primary focus of this thesis is to investigate the mathematical and physical properties of spaces that are related by T-duality and its generalisations. In string theory, T-dua…
Non-abelian T-folds
Mark Bugden
We discuss the conditions under which non-abelian T-duality can be considered as a chain of abelian T-dualities. Motivated by these results, we propose that the topology of a non-a…
The to zero limit of spacetimes and its physical interpretation
Mark Bugden, Claudio Paganini
We study the behaviour of Schwarzschild-de Sitter spacetime and show, according to Geroch's notion of spacetime limits, that it converges to the Schwarzschild spacetime. W…
Spherical Photon Orbits around a 5D Myers-Perry Black Hole
Mark Bugden
We study the motion of bound null geodesics with fixed coordinate radius around a five-dimensional rotating black hole. These spherical photon orbits are not confined to a plane, a…