Dijkgraaf-Witten invariants of surfaces and projective representations of groups
classification
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math.RT
keywords
dijkgraaf-witteninvariantssurfacesgroupspositiveprojectiverepresentationsapplication
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We compute the Dijkgraaf-Witten invariants of surfaces in terms of projective representations of groups. As an application we prove that the complex Dijkgraaf-Witten invariants of surfaces of positive genus are positive integers.
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