Seminar series
Date
Mon, 28 May 2018
15:45
15:45
Location
L6
Speaker
Lorant Szegedy
Organisation
University of Hamburg
We present a state-sum construction of TFTs on r-spin surfaces which
uses a combinatorial model of r-spin structures. We give an example of
such a TFT which computes the Arf invariant for r even. We use the
combinatorial model and this TFT to calculate diffeomorphism classes of
r-spin surfaces with parametrized boundary.