Upcoming Seminars for Spring Semester
Unless otherwise noted, the Spring Semester Seminars will be held on Fridays from 11:00 - noon in PB 390.
May 3, 2013: Joel Smith (CSUF Undergraduate Student)
Title: The singular Temperley-Lieb category
We introduce and study the singular Temperley-Lieb category (STL), whose objects are finite sequences of 1's and -1's and whose morphisms are formal linear combinations of singular flat tangles with bivalent vertices. We describe the collection of morphisms in STL via generators and relations, and employ them to construct a polynomial invariant for oriented tangles.
Our work is motivated by the oriented version of the Jones polynomial of a link.
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