Transactions of the American Mathematical Society

Author(s): Charles Frohman; Razvan Gelca; Walter LoFaro
Journal: Trans. Amer. Math. Soc. 354 (2002), 735-747.
MSC (1991): Primary 57M25, 58B30, 46L87
Posted: October 3, 2001
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Abstract: The paper introduces a noncommutative generalization of the A-polynomial of a knot. This is done using the Kauffman bracket skein module of the knot complement, and is based on the relationship between skein modules and character varieties. The construction is possible because the Kauffman bracket skein algebra of the cylinder over the torus is a subalgebra of the noncommutative torus. The generalized version of the A-polynomial, called the noncommutative A-ideal, consists of a finitely generated ideal of polynomials in the quantum plane. Some properties of the noncommutative A-ideal and its relationships with the A-polynomial and the Jones polynomial are discussed. The paper concludes with the description of the examples of the unknot, and the right- and left-handed trefoil knots.

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Retrieve articles in Transactions of the American Mathematical Society with MSC (1991): 57M25, 58B30, 46L87

Charles Frohman
Affiliation: Department of Mathematics, University of Iowa, Iowa City, Iowa 52242
Email: frohman@math.uiowa.edu

Razvan Gelca
Affiliation: Department of Mathematics and Statistics, Texas Tech University, Lubbock, Texas 79409 and Institute of Mathematics of The Romanian Academy, Bucharest, Romania
Email: rgelca@math.ttu.edu

Walter LoFaro
Affiliation: Department of Mathematics and Computing, University of Wisconsin-Stevens Point, Stevens Point, Wisconsin 54481
Email: Walter.LoFaro@uwsp.edu

DOI: 10.1090/S0002-9947-01-02889-6
PII: S 0002-9947(01)02889-6
Keywords: Kauffman bracket, skein modules, A-polynomial, character varieties, noncommutative geometry
Received by editor(s): March 14, 2001
Received by editor(s) in revised form: May 7, 2001
Posted: October 3, 2001
Copyright of article: Copyright 2001, American Mathematical Society

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