Discrete torsion in gauging non-invertible symmetries
A Perez-Lona - Journal of Geometry and Physics, 2025 - Elsevier
In this paper we discuss generalizations of discrete torsion to noninvertible symmetries in 2d
QFTs. One point of this paper is to explain that there are two complementary generalizations …
QFTs. One point of this paper is to explain that there are two complementary generalizations …
How an action that stabilizes a bundle gerbe gives rise to a Lie group extension
B Janssens, P Kristel - arXiv preprint arXiv:2401.13453, 2024 - arxiv.org
Let $\mathcal {G} $ be a bundle gerbe with connection on a smooth manifold $ M $, and let
$\rho: G\rightarrow\operatorname {Diff}(M) $ be a smooth action of a Fr\'echet--Lie group $ G …
$\rho: G\rightarrow\operatorname {Diff}(M) $ be a smooth action of a Fr\'echet--Lie group $ G …