|Affiliation||Hiroshima University(Specially Appointed)|
|Time||Jan 9 14:50~15:20|
|Title||Homological invariants of Hurwitz equivalence on tuples of simple braids|
Hurwitz equivalence on tuples of simple braids is studied, which can be used in the study of braided surfaces, surface braids and surface links. In this talk, we define a matrix for a tuple of simple braids by using the first homology classes of a punctured disk. We also introduce some invariants of Hurwitz equivalence on tuples of simple braids by using their matrices.