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Sl_n-character varieties as spaces of graphs | | Adam S. Sikora
; | | Date: |
4 Jun 1998 | | Subject: | Representation Theory; Quantum Algebra | math.RT math.QA | | Abstract: | An SL_n-character of a group G is the trace of an SL_n-representation of G. We show that all algebraic relations between SL_n-characters of G can be visualized as relations between graphs (resembling Feynman diagrams) in any topological space X, with pi_1(X)=G. We also show that all such relations are implied by a single local relation between graphs. In this way, we provide a topological approach to the study of SL_n-representations of groups. The motivation for this paper was our work with J. Przytycki on invariants of links in 3-manifolds which are based on the Kauffman bracket skein relation. These invariants lead to a notion of a skein module of M which, by a theorem of Bullock, Przytycki, and the author, is a deformation of the SL_2-character variety of pi_1(M). This paper provides a generalization of this result to all SL_n-character varieties. | | Source: | arXiv, math.RT/9806016 | | Services: | Forum | Review | PDF | Favorites | |
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