Topological quantum field theories and homotopy cobordisms
Abstract
We construct a category whose objects are {\it homotopically 1-finitely generated} topological spaces, and whose morphisms are {\it cofibrant cospans}. Given a manifold submanifold pair , we prove that there exists functors into from the full subgroupoid of the mapping class groupoid , and from the full subgroupoid of the motion groupoid , whose objects are homotopically 1-finitely generated. We also construct a family of functors , one for each finite group . These generalise topological quantum field theories previously constructed by Yetter, and an untwisted version of Dijkgraaf-Witten. Given a space , we prove that can be expressed as the -vector space with basis natural transformation classes of maps for some finite representative set of points , demonstrating that is explicitly calculable.
Keywords
Cite
@article{arxiv.2208.14504,
title = {Topological quantum field theories and homotopy cobordisms},
author = {Fiona Torzewska},
journal= {arXiv preprint arXiv:2208.14504},
year = {2022}
}
Comments
76 pages, 7 figures