From gauge anomalies to gerbes and gerbal actions

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dc.creatorMickelsson, Jouko
dc.date2008-12-09
dc.date.accessioned2026-07-07T12:11:53Z
dc.date.available2026-07-07T12:11:53Z
dc.descriptionThe purpose of this contribution is to point out connections between recent ideas about gerbes and gerbal actions (as higher categorical extension of representation theory) and old discussion in quantum field theory on commutator anomalies, gauge group extensions, and 3-cocycles. The unifying concept is the classical obstruction theory for group extensions as explained in the reference [ML].
dc.description11 pages, based on the talk on "Fractional Loop Groups" at the meeting "Motives, Quantum Field Theory, and Pseudodifferential Operators", Boston University, June 2-13, 2008
dc.identifierhttps://arxiv.org/abs/0812.1640
dc.identifierhttp://arxiv.org/abs/0812.1640
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/210366
dc.subjectDifferential Geometry
dc.subjectHigh Energy Physics - Theory
dc.subjectMathematical Physics
dc.subject53C80, 81R10
dc.titleFrom gauge anomalies to gerbes and gerbal actions
dc.typetext

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