Schreiber, Urs and Waldorf, Konrad (2013) CONNECTIONS ON NON-ABELIAN GERBES AND THEIR HOLONOMY. THEORY AND APPLICATIONS OF CATEGORIES, 28. pp. 476-540. ISSN 1201-561X,
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We introduce an axiomatic framework for the parallel transport of connections on gerbes, it incorporates parallel transport along curves and along surfaces, and is formulated in terms of gluing axioms and smoothness conditions. The smoothness conditions are imposed with respect to a strict Lie 2-group, which plays the role of a band, or structure 2-group. Upon choosing certain examples of Lie 2-groups, our axiomatic framework reproduces in a systematical way several known concepts of gerbes with connection: non-abelian differential cocycles. Breen-Messing gerbes, abelian and non-abelian bundle gerbes. These relationships convey a well-defined notion of surface holonomy from our axiomatic framework to each of these concrete models. Till now, holonomy was only known for abelian gerbes; our approach reproduces that known concept and extends it to non-abelian gerbes. Several new features of surface holonomy are exposed under its extension to non-abelian gerbes; for example, it carries an action of the napping class group of the surface.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | BUNDLE GERBES; DIFFERENTIAL GEOMETRY; Parallel transport; surface holonomy; path 2-groupoid; gerbes; 2-bundles; 2-groups; non-abelian differential cohomology; non-abelian bundle gerbes |
| Subjects: | 500 Science > 510 Mathematics |
| Divisions: | Mathematics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 28 Apr 2020 12:49 |
| Last Modified: | 28 Apr 2020 12:51 |
| URI: | https://pred.uni-regensburg.de/id/eprint/17325 |
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