Dijkgraaf–Witten invariants of surfaces and projective representations of groups |
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| Authors: | Vladimir Turaev |
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| Affiliation: | IRMA, Université Louis Pasteur - C.N.R.S., 7 rue René Descartes, F-67084 Strasbourg, France; Department of Mathematics, Indiana University, Rawles Hall, 831 East 3rd Street, Bloomington, IN 47405, USA |
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| Abstract: | 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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| Keywords: | 57R56 81T45 20C25 |
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