|Affiliation||Tokyo Gakugei University|
|Time||Jan 10 14:50~15:20|
|Title||Interpretation of rack coloring knot invariants in terms of quandles|
It is known that quandles give us invariants of knots and racks give us that of framed knots. Considering a knot with an integer as a framed knot, Nelson constructed an invariant of (unframed) knots by using rack coloring invariants. It is natural to consider whether there is some relationship between his invariant and an invariant of knots derived from quandle theory. In this talk, we give an interpretation of his invariant in terms of quandles. This is a joint work with Yuma Taniguchi (Tokyo Gakugei University).