A Diagrammatic Alexander Invariant of Tangles
نویسندگان
چکیده
We give a new construction of the one-variable Alexander polynomial of an oriented knot or link, and show that it generalizes to a vector valued invariant of oriented tangles.
منابع مشابه
A Diagrammatic Multivariate Alexander Invariant of Tangles
Recently, Bigelow defined a diagrammatic method for calculating the Alexander polynomial of a knot or link by resolving crossings in a planar algebra. I will present my multivariate version of Bigelow’s calculation. The advantage to my algorithm is that it generalizes to a multivariate tangle invariant up to Reidemeister I. I will conclude with a possible link to subfactor planar algebras from ...
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تاریخ انتشار 2012