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hep-th2026
Non-Invertible Symmetries and Boundaries for Two-Dimensional Fermions
Guillermo Arias-Tamargo, Philip Boyle Smith, Rishi Mouland +1
We study the relation between boundary conditions and categorical symmetries of two-dimensional fermionic conformal field theories. We determine all anomaly-free invertible global…
hep-th2026
On Generalised Discrete Torsion
Philip Boyle Smith, Yuji Tachikawa
For a 2d gauged sigma model with target space and discrete gauge group , we consider a generalisation of Vafa's discrete torsion that assigns different local…