18, June (Thu) (Zoom seminar)
|
‘2020
|
|---|
|
|
18, June (Thu) (Zoom seminar) |
|---|---|
| 13:30--14:00 | |
| Hiroshi Goda (The Tokyo University of Agriculture and Technology) | |
| TAP and CS | |
| 14:00--15:00 | |
| Airi Aso (Tokyo Metropolitan University) | |
| A note on the asymptotic behavior of the twisted Alexander polynomials of 5_2 knot |
|
‘2019
|
|---|
|
|
22, March (Fri) |
|---|---|
| 13:00-- | |
| Noboru Ito (The University of Tokyo) | |
| Crosscap numbers and volume bounds |
|
‘2018
|
|---|
|
|
21, November (Wed) |
|---|---|
| 14:45--14:30 | |
| Yuta Nozaki (The University of Tokyo) | |
| An infinite family of homologically fibered knots of the same genus | |
| 14:45--15:45 | |
| Takayuki Okuda (Tokyo University of Agriculture and Technology) | |
| Degenerations of Riemann surfaces over disks and their deformations | |
| 16:00--17:00 | |
| Kazuto Takao (Kyoto University) | |
| On bridge decompositions and bridge positions for knots | |
| 18:00--19:30 | |
| Problem session |
|
|
14, May (Mon) |
|---|---|
| 13:30--15:00 | |
| Kanako Oshiro (Sophia University) | |
| Augmented Alexander matrices and generalizations of twisted Alexander invariants and quandle cocycle invariants I | |
| 15:30--17:00 | |
| Atsushi Ishii (Tsukuba University) | |
| Augmented Alexander matrices and generalizations of twisted Alexander invariants and quandle cocycle invariants II |
|
‘2017
|
|---|
|
|
7, February (Tue) |
|---|---|
| 13:40--14:20 | |
| Toshio Sato (Joetsu University of Education) | |
| Knots in the solid torus | |
| 14:40--15:20 | |
| Takuji Nakamura (Osaka Electro-Communication University) | |
| A note on 3-colored knot diagrams | |
| 15:40--16:20 | |
| Ryosuke Yamamoto (Gunma University) | |
| Simpleness of closed curves on a surface and the lower central series of the fundamental group of the surface | |
| 16:40--17:20 | |
| Ippei Ishii | |
| (1,1) knots and their 2-fold branched coverings | |
| 17:40--18:20 | |
| Yuta Nozaki (The University of Tokyo) | |
| Homology cobordisms over a surface of genus one and lens spaces | |
| 18:40--19:40 | |
| Problem session |
|
|
31, July (Fri) |
|---|---|
| 10:30--12:00C13:30--16:00 | |
| Yuya Koda (Hiroshima University) | |
| Arc complexes, sphere complexes and Goeritz groups |
|
‘2015
|
|---|
|
|
2, December (Wed) |
|---|---|
| 16:00--18:00 | |
| Fabiola Manjarrez Gutiérrez (Universidad Nacional Autonoma de Mexico (UNAM)) | |
| Genus two knots which admit a (1,1)-decomposition |
|
|
31, July (Fri) |
|---|---|
| 10:30--12:00C13:30--16:00 | |
| Yuya Koda (Hiroshima University) | |
| Arc complexes, sphere complexes and Goeritz groups |
|
‘2014
|
|---|
|
|
6, June (Fri) |
|---|---|
| 15:00-- | |
| Nao Imoto (Nara Women's University) | |
| On monodromy of rationally homologically fiber surface |
@ Λ Past Seminars