Bi-oriented Quantum Algebras, and a Generalized Alexander Polynomial for Virtual Links
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This paper discusses the construction of a generalized Alexander polynomial for virtual knots and links, and the reformulation of this invariant as a quantum link invariant. The algebraic background for the generalized Alexander module is formulated in terms of the biquandle, a generalization of the quandle of David Joyce (which, in turn, is a generalization of the fundamental group of the knot or link). We then introduce the concept of a bi-oriented quantum algebra which provides an algebraic context for the associated quantum invariant.
LaTeX document, 34 pages, 13 figures, in text LaTeX graphics
LaTeX document, 34 pages, 13 figures, in text LaTeX graphics