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ON 2-HOLONOMY

Published online by Cambridge University Press:  04 September 2019

HOSSEIN ABBASPOUR*
Affiliation:
Université de Nantes, 2, rue de la Houssiniere, Nantes44322, France
FRIEDRICH WAGEMANN
Affiliation:
Université de Nantes, 2, rue de la Houssiniere, Nantes44322, France e-mail: wagemann@math.univ-nantes.fr

Abstract

We construct a cycle in higher Hochschild homology associated to the two-dimensional torus which represents 2-holonomy of a nonabelian gerbe in the same way as the ordinary holonomy of a principal G-bundle gives rise to a cycle in ordinary Hochschild homology. This is done using the connection 1-form of Baez–Schreiber. A crucial ingredient in our work is the possibility to arrange that in the structure crossed module $\unicode[STIX]{x1D707}:\mathfrak{h}\rightarrow \mathfrak{g}$ of the principal 2-bundle, the Lie algebra $\mathfrak{h}$ is abelian, up to equivalence of crossed modules.

Type
Research Article
Copyright
© 2019 Australian Mathematical Publishing Association Inc.

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Footnotes

Communicated by M. Murray

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