18, December (Wed)丂(Joint seminar with Waseda University)
丂丂
丂丂16:00--17:00

20, November (Wed)丂(Joint seminar with Waseda University)
丂丂Held at Waseda University (Room 18-08, 18th floor, Building 51, Nishiwaseda Campus)
丂丂15:30--16:30
丂丂Kanako Oshiro (Sophia University)
丂丂Normalized quandle twisted Alexander invariants (joint work with Atsushi Ishii (University of Tsukuba))

16, October (Wed)丂(Joint seminar with Waseda University)
丂丂Held at Waseda University (Room 18-08, 18th floor, Building 51, Nishiwaseda Campus)
丂丂15:30--16:30
丂丂Natsuya Takahashi (Osaka University)
丂丂
19, July (Fri)丂(Joint seminar with Waseda University)
丂丂Held at Waseda University (Room 17-08, 17th floor, Building 51, Nishiwaseda Campus)
丂丂16:00--17:00
丂丂Tatsuro Shimizu (Tokyo Denki University)
丂丂Reidemeister torsion and an invariant related to the Chern-Simons perturbation theory

5, July (Fri)丂(Joint seminar with Waseda University)
丂丂Held at Waseda University (Room 17-08, 17th floor, Building 51, Nishiwaseda Campus)
丂丂16:00--17:00
丂丂Anh Tran (University of Texas at Dallas)
丂丂Even classical pretzel knots and left orderability

10, May (Fri)丂(Joint seminar with Waseda University)
丂丂Held at Waseda University (Room 17-08, 17th floor, Building 51, Nishiwaseda Campus)
丂丂16:00--17:00
丂丂Naoko Wakijo (Tokyo Institute of Technology)
丂丂Twisted Reidemeister torsions of closed 3-manifolds

19, April (Fri)丂(Joint seminar with Waseda University)
丂丂Held at Waseda University (Room 17-08, 17th floor, Building 51, Nishiwaseda Campus)
丂丂16:00--17:00
丂丂Sebastian Baader (University of Bern)
丂丂Minimal cobordisms between torus knots and large sums of trefoil knots

5, April (Fri)丂(Joint seminar with Waseda University)
丂丂Held at Waseda University (Room 18-06, 18th floor, Building 51, Nishiwaseda Campus)
丂丂16:00--17:00
丂丂Shun Sawabe (Waseda University)
丂丂On the annihilating polynomials of the colored Jones polynomial for links

6, January (Sat)
丂丂Held at Tokyo University of Agriculture and Technology (Room L1215, 1st floor, Building 12, Koganei Campus)

丂丂13:10--13:30
丂丂Hiroshi Goda (The Tokyo University of Agriculture and Technology)
丂丂Dehn surgeries which yield lens spaces and genera of knots

丂丂13:45--14:15
丂丂Toshio Sato (Joetsu University of Education)
丂丂Exceptional or half-integral chirally cosmetic surgeries

丂丂14:30--15:00
丂丂Takuji Nakamura (Yamanashi University)
丂丂Notes on virtualized pass moves for virtual knots

丂丂15:15--15:45
丂丂Ryosuke Yamamoto (Gunma University)
丂丂Associating monomial matrices with multi-curves and its applications

丂丂16:00--16:30
丂丂Takayuki Morifuji (Keio University)
丂丂Non-acyclic representations of the figure-eight knot

丂丂16:45--17:15
丂丂Masakazu Teragaito (Hiroshima University)
丂丂
丂丂17:30--18:30
丂丂Problem session

4, Dec (Mon)丂(Joint seminar with Waseda University)
丂丂Held at Waseda University (Room 17-08, 17th floor, Building 51, Nishiwaseda Campus)
丂丂17:00--18:00
丂丂Ayaka Ishikawa (Yamagata University)
丂丂On graph zeta and its determinant representation

30, Oct (Mon)丂(Joint seminar with Waseda University)
丂丂Held at Waseda University (Room 17-08, 17th floor, Building 51, Nishiwaseda Campus)
丂丂17:00--18:00
丂丂Genki Omori (Shibaura Institure of Technology)
丂丂A minimal generating set for the quasitoric braid group

5, October (Thu)
丂丂Held at Tokyo University of Agriculture and Technology (Room L1215, 1st floor, Building 12, Koganei Campus)

丂丂13:30--14:20
丂丂Toshio Sato (Joetsu University of Education)
丂丂Dehn surgery on knots with coil presentation

丂丂14:40--15:10
丂丂Takuji Nakamura (Yamanashi University)
丂丂On virtualized-type local moves for virtual knots

丂丂15:30--16:00
丂丂Hiroshi Goda (The Tokyo University of Agriculture and Technology)
丂丂Arc graph and Gauss diagram

丂丂16:30--
丂丂Free presentation
丂丂Problem session

31, July (Mon)丂(Joint seminar with Waseda University)
丂丂Held at Waseda University (Room 18-06, 18th floor, Building 51, Nishiwaseda Campus)
丂丂16:00--17:00
丂丂Hiroaki Karuo (Gakushuin University)
丂丂A proposal for a positivity conjecture of Roger--Yang skein algebras

19, July (Wed)丂(Joint seminar with Waseda University)
丂丂Held at Waseda University (Room 18-06, 18th floor, Building 51, Nishiwaseda Campus)
丂丂16:00--17:00
丂丂Anh Tran 乮University of Texas at Dallas乯
丂丂Minimality of rational knots C(2n+1, 2m, 2)

19, June (Mon)丂(Joint seminar with Waseda University)
丂丂Held at Waseda University (Room 18-06, 18th floor, Building 51, Nishiwaseda Campus)
丂丂16:00--17:00
丂丂Yuta Nozaki (Yokohama National University)
丂丂Epimorphisms between knot groups and the twisted Alexander polynomial

29, May (Mon)丂(Joint seminar with Waseda University)
丂丂Held at Waseda University (Room 18-06, 18th floor, Building 51, Nishiwaseda Campus)
丂丂16:00--17:00
丂丂Atsuhiko Mizusawa (Waseda University)
丂丂A link-homotopy theory of colored string links and its applications

24, April (Mon)丂(Joint seminar with Waseda University)
丂丂Held at Waseda University (Room 17-06, 17th floor, Building 51, Nishiwaseda Campus)
丂丂16:00--17:00
丂丂Naoki Kimura (Waseda University)
丂丂Rack coloring invariants of Legendrian knots

18, June (Thu) (Zoom seminar)
丂丂13:30--14:00
丂丂Hiroshi Goda (The Tokyo University of Agriculture and Technology)
丂丂TAP and CS

丂丂14:00--15:00
丂丂Airi Aso (Tokyo Metropolitan University)
丂丂A note on the asymptotic behavior of the twisted Alexander polynomials of 5_2 knot

22, March (Fri)
丂丂13:00--
丂丂Noboru Ito (The University of Tokyo)
丂丂Crosscap numbers and volume bounds

21, November (Wed)
丂丂14:45--14:30
丂丂Yuta Nozaki (The University of Tokyo)
丂丂An infinite family of homologically fibered knots of the same genus

丂丂14:45--15:45
丂丂Takayuki Okuda (Tokyo University of Agriculture and Technology)
丂丂Degenerations of Riemann surfaces over disks and their deformations

丂丂16:00--17:00
丂丂Kazuto Takao (Kyoto University)
丂丂On bridge decompositions and bridge positions for knots

14, May (Mon)
丂丂13:30--15:00
丂丂Kanako Oshiro (Sophia University)
丂丂Augmented Alexander matrices and generalizations of twisted Alexander invariants and quandle cocycle invariants I

丂丂15:30--17:00
丂丂Atsushi Ishii (Tsukuba University)
丂丂Augmented Alexander matrices and generalizations of twisted Alexander invariants and quandle cocycle invariants II

佀 Past Seminars