| Speaker: | Kiyonori Gomi (Shinshu U) |
|---|---|
| Title: | Mickelsson's twisted K-theory invariant and its generalization |
| Date (JST): | Tue, Mar 05, 2013, 15:30 - 17:00 |
| Place: | Seminar Room A |
| Related File: | 884.pdf |
| Abstract: | Twisted K-theory is a topological K-theory with certain local coefficients. It became familiar thanks to its ability to classify Ramond-Ramond charges of D-branes. Mickelsson's invariant is an invariant of odd twisted K-classes on 3-manifolds. This invariant detects some subtle information which cannot be captured by the Chern character. The theme of my seminar is to introduce a reformulation and some generalizations of the invariant. I also clarify relationship with the Atiyah-Hirzebruch spectral sequence. |
