Tuesday Seminar on Topology

Seminar information archive ~10/10Next seminarFuture seminars 10/11~

Date, time & place Tuesday 17:00 - 18:30 056Room #056 (Graduate School of Math. Sci. Bldg.)
Organizer(s) KAWAZUMI Nariya, KITAYAMA Takahiro, SAKASAI Takuya

2017/10/10

17:30-18:30   Room #056 (Graduate School of Math. Sci. Bldg.)
Shoji Yokura (Kagoshima University)
Poset-stratified spaces and some applications (JAPANESE)
[ Abstract ]
A poset-stratified space is a continuous map from a topological space to a poset with the Alexandroff topology. In this talk I will discuss some thoughts about poset-stratified spaces from a naive general-topological viewpoint, some applications such as hyperplane arrangements and poset-stratified space structures of hom-sets, and related topics such as characteristic classes of vector bundles, dependence of maps (by Borsuk) and dependence of cohomology classes (by Thom).