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Tuesday Seminar on Topology
Seminar information archive ～04/06｜Next seminar｜Future seminars 04/07～
| Date, time & place | Tuesday 16:00 - 17:30 056Room #056 (Graduate School of Math. Sci. Bldg.) |
|---|---|
| Organizer(s) | IKE Yuichi, KONNO Hokuto, SAKASAI Takuya |
2017/10/17
17:00-18:30 Room #056 (Graduate School of Math. Sci. Bldg.)
Atsushi Ishii (University of Tsukuba)
Generalizations of twisted Alexander invariants and quandle cocycle invariants (JAPANESE)
Atsushi Ishii (University of Tsukuba)
Generalizations of twisted Alexander invariants and quandle cocycle invariants (JAPANESE)
[ Abstract ]
We introduce augmented Alexander matrices, and construct link invariants. An augmented Alexander matrix is defined with an augmented Alexander pair, which gives an extension of a quandle. This framework gives the twisted Alexander invariant and the quandle cocycle invariant. This is a joint work with Kanako Oshiro.
We introduce augmented Alexander matrices, and construct link invariants. An augmented Alexander matrix is defined with an augmented Alexander pair, which gives an extension of a quandle. This framework gives the twisted Alexander invariant and the quandle cocycle invariant. This is a joint work with Kanako Oshiro.
