Frobenius--Schur indicators for twisted Real representation theory and two dimensional unoriented topological field theory

Levi Gagnon-Ririe, Matthew B. Young

We construct a two dimensional unoriented open/closed topological field theory from a finite graded group $\pi :\hat{G}\twoheadrightarrow \{1,-1\}$, a $\pi$-twisted $2$-cocycle $\hat{\theta }$…