Text only print
Full screen print
Future seminars
Seminar information archive ～09/28｜Today's seminar 09/29 | Future seminars 09/30～
2021/10/01
Colloquium
14:30-17:00 Online
This is "Colloquium for Research Ethics". Register at the URL below to attend Colloquium.
Sadayoshi Kojima (Waseda University) 14:30-15:30
Research Ethics in Computer Aided Mathematics (JAPANESE)
What's keeping back female mathematicians & physicists? (JAPANESE)
https://forms.gle/BMe1eaEUyMtpLgJv8
This is "Colloquium for Research Ethics". Register at the URL below to attend Colloquium.
Sadayoshi Kojima (Waseda University) 14:30-15:30
Research Ethics in Computer Aided Mathematics (JAPANESE)
[ Abstract ]
Since the solution of the four colored problem, a computer aided method has been expanding its base in mathematical research based on quite rapid development of Information Technology. Since then, it has been asked what the proof is, which is fundamental in mathematical research ethics. In this talk, I would like to present a history of discussions on this matter until now and to discuss some future aspect.
Hiromi Yokoyama (Kavli IPMU) 16:00-17:00Since the solution of the four colored problem, a computer aided method has been expanding its base in mathematical research based on quite rapid development of Information Technology. Since then, it has been asked what the proof is, which is fundamental in mathematical research ethics. In this talk, I would like to present a history of discussions on this matter until now and to discuss some future aspect.
What's keeping back female mathematicians & physicists? (JAPANESE)
[ Abstract ]
In Japan, female students' rate is low in mathematics and physics. The American Educational Psychology group pointed out there are three factors. We extended the model and added gender inequality social climate factors. We confirmed that the new factors influenced the male image of mathematics and physics in Japan and England. I would like to Introduce interdisciplinary research on science and technology society.
[ Reference URL ]In Japan, female students' rate is low in mathematics and physics. The American Educational Psychology group pointed out there are three factors. We extended the model and added gender inequality social climate factors. We confirmed that the new factors influenced the male image of mathematics and physics in Japan and England. I would like to Introduce interdisciplinary research on science and technology society.
https://forms.gle/BMe1eaEUyMtpLgJv8
2021/10/05
Tuesday Seminar on Topology
17:00-18:00 Online
Pre-registration required. See our seminar webpage.
Hiroshi Goda (Tokyo University of Agriculture and Technology)
Twisted Alexander polynomials, chirality, and local deformations of hyperbolic 3-cone-manifolds (JAPANESE)
https://park.itc.u-tokyo.ac.jp/MSF/topology/TuesdaySeminar/index_e.html
Pre-registration required. See our seminar webpage.
Hiroshi Goda (Tokyo University of Agriculture and Technology)
Twisted Alexander polynomials, chirality, and local deformations of hyperbolic 3-cone-manifolds (JAPANESE)
[ Abstract ]
We discuss a relationship between the chirality of knots and higher dimensional twisted Alexander polynomials associated with holonomy representations of hyperbolic $3$-cone-manifolds. In particular, we provide a new necessary condition for a knot, that appears in a hyperbolic $3$-cone-manifold of finite volume as a singular set, to be amphicheiral. Moreover, we can detect the chirality of hyperbolic twist knots, according to our criterion, using low-dimensional irreducible representations. (This is a joint work with Takayuki Morifuji.)
[ Reference URL ]We discuss a relationship between the chirality of knots and higher dimensional twisted Alexander polynomials associated with holonomy representations of hyperbolic $3$-cone-manifolds. In particular, we provide a new necessary condition for a knot, that appears in a hyperbolic $3$-cone-manifold of finite volume as a singular set, to be amphicheiral. Moreover, we can detect the chirality of hyperbolic twist knots, according to our criterion, using low-dimensional irreducible representations. (This is a joint work with Takayuki Morifuji.)
https://park.itc.u-tokyo.ac.jp/MSF/topology/TuesdaySeminar/index_e.html
2021/10/07
Information Mathematics Seminar
16:50-18:35 Online
Hiroshi Fujiwara (BroadBand Tower, Inc.)
Essence of DX
- History of Industrial Revolution and role of the mathematics - (Japanese)
https://docs.google.com/forms/d/1I3XD63V937BT_IoqRWBVN67goQAtbkSoIKs-6hfLUAM
Hiroshi Fujiwara (BroadBand Tower, Inc.)
Essence of DX
- History of Industrial Revolution and role of the mathematics - (Japanese)
[ Abstract ]
Explanation on the essence of DX.
[ Reference URL ]Explanation on the essence of DX.
https://docs.google.com/forms/d/1I3XD63V937BT_IoqRWBVN67goQAtbkSoIKs-6hfLUAM
Mathematical Biology Seminar
15:00-16:30 Online
Ryosuke Omori (International Institute for Zoonosis Control, Hokkaido University)
The role of mathematical model in the practice of infectious disease control (Japanese)
Ryosuke Omori (International Institute for Zoonosis Control, Hokkaido University)
The role of mathematical model in the practice of infectious disease control (Japanese)
2021/10/11
Seminar on Geometric Complex Analysis
10:30-12:00 Online
Takahiro Aoi (Abuno High School)
cscK計量に付随する完備スカラー平坦Kähler計量について (Japanese)
https://u-tokyo-ac-jp.zoom.us/meeting/register/tJ0vcu2rrDIqG9Rv5AT0Mpi37urIkJ1IRldB
Takahiro Aoi (Abuno High School)
cscK計量に付随する完備スカラー平坦Kähler計量について (Japanese)
[ Abstract ]
複素多様体上のKähler計量であって, そのスカラー曲率が定数となるもの(cscK計量)が存在するか, という問題は非自明であり，極めて重要である．ここでは正則ベクトル場などに対して適当な条件を満たす偏極多様体と, 滑らかな超曲面を考える. 本講演では,この超曲面を無限遠と見做し, それが適当な偏極類にcscK計量を持つ, という境界条件を満たせば,その補集合は漸近錐的完備なスカラー平坦Kähler計量を許容する, という結果について紹介を行い,時間が許す限り関連する問題についても紹介する.
[ Reference URL ]複素多様体上のKähler計量であって, そのスカラー曲率が定数となるもの(cscK計量)が存在するか, という問題は非自明であり，極めて重要である．ここでは正則ベクトル場などに対して適当な条件を満たす偏極多様体と, 滑らかな超曲面を考える. 本講演では,この超曲面を無限遠と見做し, それが適当な偏極類にcscK計量を持つ, という境界条件を満たせば,その補集合は漸近錐的完備なスカラー平坦Kähler計量を許容する, という結果について紹介を行い,時間が許す限り関連する問題についても紹介する.
https://u-tokyo-ac-jp.zoom.us/meeting/register/tJ0vcu2rrDIqG9Rv5AT0Mpi37urIkJ1IRldB
2021/10/12
Tuesday Seminar on Topology
17:00-18:00 Online
Pre-registration required. See our seminar webpage.
Nobuo Iida (The Univesity of Tokyo)
Seiberg-Witten Floer homotopy and contact structures (JAPANESE)
https://park.itc.u-tokyo.ac.jp/MSF/topology/TuesdaySeminar/index_e.html
Pre-registration required. See our seminar webpage.
Nobuo Iida (The Univesity of Tokyo)
Seiberg-Witten Floer homotopy and contact structures (JAPANESE)
[ Abstract ]
Seiberg-Witten theory has been an efficient tool to study 4-dimensional symplectic and 3-dimensional contact geometry. In this talk, we introduce new homotopical invariants related to these structures using Seiberg-Witten theory and explain their properties and applications. These invariants have two main origins:
1. Kronheimer-Mrowka's invariant for 4-manifold with contact boundary, whose construction is based on Seiberg-Witten equation on 4-manifolds with conical end.
2. Bauer-Furuta and Manolescu's homotopical method called finite dimensional approximation in Seiberg-Witten theory.
This talk includes joint works with Masaki Taniguchi(RIKEN) and Anubhav Mukherjee(Georgia tech).
[ Reference URL ]Seiberg-Witten theory has been an efficient tool to study 4-dimensional symplectic and 3-dimensional contact geometry. In this talk, we introduce new homotopical invariants related to these structures using Seiberg-Witten theory and explain their properties and applications. These invariants have two main origins:
1. Kronheimer-Mrowka's invariant for 4-manifold with contact boundary, whose construction is based on Seiberg-Witten equation on 4-manifolds with conical end.
2. Bauer-Furuta and Manolescu's homotopical method called finite dimensional approximation in Seiberg-Witten theory.
This talk includes joint works with Masaki Taniguchi(RIKEN) and Anubhav Mukherjee(Georgia tech).
https://park.itc.u-tokyo.ac.jp/MSF/topology/TuesdaySeminar/index_e.html
Operator Algebra Seminars
16:45-18:15 Online
Eusebio Gardella (G\"oteborgs Universitet)
Lifts of completely positive (equivariant) maps
(English)
[ Reference URL ]
https://www.ms.u-tokyo.ac.jp/~yasuyuki/tokyo-seminar.htm
Eusebio Gardella (G\"oteborgs Universitet)
Lifts of completely positive (equivariant) maps
(English)
[ Reference URL ]
https://www.ms.u-tokyo.ac.jp/~yasuyuki/tokyo-seminar.htm
2021/10/19
Tuesday Seminar of Analysis
16:00-17:30 Online
KUTO Kousuke (Waseda University)
TBA (Japanese)
https://forms.gle/hkfCd3fSW5A77mwv5
KUTO Kousuke (Waseda University)
TBA (Japanese)
[ Abstract ]
TBA
[ Reference URL ]TBA
https://forms.gle/hkfCd3fSW5A77mwv5
Operator Algebra Seminars
16:45-18:15 Online
Bin Gui (Tsinghua University)
TBA
(English)
[ Reference URL ]
https://www.ms.u-tokyo.ac.jp/~yasuyuki/tokyo-seminar.htm
Bin Gui (Tsinghua University)
TBA
(English)
[ Reference URL ]
https://www.ms.u-tokyo.ac.jp/~yasuyuki/tokyo-seminar.htm
2021/11/16
Tuesday Seminar of Analysis
16:00-17:30 Online
KUBO Hideo (Hokkaido University)
TBA (Japanese)
https://forms.gle/6ZCp8hQxKA3vq3DB9
KUBO Hideo (Hokkaido University)
TBA (Japanese)
[ Abstract ]
TBA
[ Reference URL ]TBA
https://forms.gle/6ZCp8hQxKA3vq3DB9
