|Affiliation||Osaka Electro-Communication University|
|Time||Jan 10 14:50~15:20|
|Title||Non-identical twin groups of virtual knot|
Every virtual knot has a pair of groups called the upper and lower groups of the knot. In this talk, we give a sufficient condition for a pair of groups which are realized by a certain virtual knot as the upper and lower groups. This is a joint work with Y. Nakanishi, S. Satoh, Y. Tomiyama.