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arXiv · 1712.08294

Basic equivariant gerbes on non-simply connected compact simple Lie groups

Derek Krepski
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Abstract

This paper computes the obstruction to the existence of equivariant extensions of basic gerbes over non-simply connected compact simple Lie groups. By modifying a (finite dimensional) construction of Gaw\c{e}dzki-Reis [J. Geom. Phys. 50(1):28-55, 2004], we exhibit basic equivariant bundle gerbes over non-simply connected compact simple Lie groups.

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Derek Krepski. 2017-12-22. Basic equivariant gerbes on non-simply connected compact simple Lie groups. https://doi.org/10.1016/j.geomphys.2018.06.016

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