|Time||Jan 10 13:50~14:30|
|Title||Epimorphisms between knot groups and the images of meridians|
We determined whether there exists an epimorphism between knot groups which maps a meridian to a meridian, in case of the knots with up to 11 crossings. The twisted Alexander polynomial is a key tool to determine the non-existence of an epimorphism. In this talk, we show some examples of epimorphisms which do not map meridians to meridians.