Name Seiichi Kamada Hiroshima University Session Jan 10 13:00~13:40 E11-101 Twisted biquandles and invariants of twisted links A biquandle is a set with two binary operations satisfying certain conditions coming from Reidemeister moves. We consider an additional structure related to twisted knots. The number of colorings is an invariant of a twisted knot. There is also a notion of the fundamental twisted biquandle of a twisted knot. This is a joint work with Naoko Kamada. 101-1-10/SKamada201201.pdf