Klein Topological Field Theories from Group Representations
Loktev, Sergey A.;Natanzon, Sergey M.;
symmetry, integrability and geometry: methods and applications2011Vol. 7pp. 070-
256
loktev2011kleinsymmetry
Abstract
We show that any complex (respectively real) representation of finite group naturally generates a open-closed (respectively Klein) topological field theory over complex numbers. We relate the 1-point correlator for the projective plane in this theory with the Frobenius-Schur indicator on the representation. We relate any complex simple Klein TFT to a real division ring.