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Article

Title: Parallel transport in principal 2-bundles (English)
Author: Waldorf, Konrad
Language: English
Journal: Higher Structures
ISSN: 2209-0606
Volume: 2
Issue: 1
Year: 2018
Pages: 57-115
Summary lang: English
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Category: math
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Summary: A nice differential-geometric framework for (non-abelian) higher gauge theory is provided by principal 2-bundles, i.e. categorified principal bundles. Their total spaces are Lie groupoids, local trivializations are kinds of Morita equivalences, and connections are Lie-2-algebra-valued 1-forms. In this article, we construct explicitly the parallel transport of a connection on a principal 2-bundle. Parallel transport along a path is a Morita equivalence between the fibres over the end points, and parallel transport along a surface is an intertwiner between Morita equivalences. We prove that our constructions fit into the general axiomatic framework for categorified parallel transport and surface holonomy. (English)
Keyword: Gerbes
Keyword: 2-bundle
Keyword: Lie groupoids
Keyword: parallel transport
MSC: 22A22
MSC: 53C08
MSC: 55R65
MSC: 58H05
idZBL: Zbl 1432.53030
idMR: MR3917427
DOI: 10.21136/HS.2018.04
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Date available: 2026-03-10T15:53:54Z
Last updated: 2026-03-10
Stable URL: http://hdl.handle.net/10338.dmlcz/153403
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