Operator Algebra Seminars

Seminar information archive ~05/21Next seminarFuture seminars 05/22~

Date, time & place Wednesday 16:30 - 18:00 122Room #122 (Graduate School of Math. Sci. Bldg.)

Seminar information archive

2022/05/17

16:45-18:15   Room #128 (Graduate School of Math. Sci. Bldg.)
Yoh Tanimoto (Univ. Rome, "Tor Vergata")
Towards integral perturbation of two-dimensional CFT (English)
[ Reference URL ]
https://www.ms.u-tokyo.ac.jp/~yasuyuki/tokyo-seminar.htm

2022/05/10

16:45-18:15   Room #128 (Graduate School of Math. Sci. Bldg.)
Maria Stella Adamo (Univ. Tokyo)
Reflection positive representations - the case of the integers $\mathbb{Z}$ and the real line $\mathbb{R}$ (English)
[ Reference URL ]
https://www.ms.u-tokyo.ac.jp/~yasuyuki/tokyo-seminar.htm

2022/04/19

16:45-18:15   Room #128 (Graduate School of Math. Sci. Bldg.)
Kei Ito (Univ. Tokyo)
Cartan subalgebras of $C^*$-algebras associated to dynamical systems
[ Reference URL ]
https://www.ms.u-tokyo.ac.jp/~yasuyuki/tokyo-seminar.htm

2022/01/18

16:45-18:15   Online
Miho Mukohara (Univ. Tokyo)
C$^*$-simplicity of relative profinite completions of generalized Baumslag-Solitar groups

[ Reference URL ]
https://www.ms.u-tokyo.ac.jp/~yasuyuki/tokyo-seminar.htm

2022/01/11

16:45-18:15   Online
Akihiro Miyagawa (Kyoto University)
Rationality for operators in free semicircular elements
[ Reference URL ]
https://www.ms.u-tokyo.ac.jp/~yasuyuki/tokyo-seminar.htm

2021/12/21

16:45-18:15   Online
Wojciech Dybalski (Adam Mickiewicz University in Poznan)
Interacting massless infraparticles in 1+1 dimensions
(English)
[ Reference URL ]
https://www.ms.u-tokyo.ac.jp/~yasuyuki/tokyo-seminar.htm

2021/12/14

16:45-18:15   Online
Karen Strung (Czech Academy of Science)
Constructions in minimal amenable dynamics and applications to classification of $C^*$-algebras


[ Reference URL ]
https://www.ms.u-tokyo.ac.jp/~yasuyuki/tokyo-seminar.htm

2021/12/07

16:45-18:15   Online
Junichiro Matsuda (Kyoto Univ.)
Classification of quantum graphs on $M_2$ and their quantum automorphism groups
[ Reference URL ]
https://www.ms.u-tokyo.ac.jp/~yasuyuki/tokyo-seminar.htm

2021/11/30

16:45-18:15   Online
Yosuke Kubota (Shinshu Univ.)
Crystallographic $T$-duality in twisted equivariant $K$-theory
[ Reference URL ]
https://www.ms.u-tokyo.ac.jp/~yasuyuki/tokyo-seminar.htm

2021/11/16

16:45-18:15   Online
Michiya Mori (RIKEN)
On regular $*$-algebras of bounded linear operators: A new approach towards a theory of noncommutative Boolean algebras

[ Reference URL ]
https://www.ms.u-tokyo.ac.jp/~yasuyuki/tokyo-seminar.htm

2021/11/09

16:45-18:15   Online
Yoh Tanimoto (University of Rome, Tor Vergata)
Construction of Haag-Kastler nets for factorizing S-matrices with bound states
[ Reference URL ]
https://www.ms.u-tokyo.ac.jp/~yasuyuki/tokyo-seminar.htm

2021/11/02

16:45-18:15   Online
Tarahiro Miyao (Hokkaido Univ.)
Magnetic properties of ground states in many-electron systems
[ Reference URL ]
https://www.ms.u-tokyo.ac.jp/~yasuyuki/tokyo-seminar.htm

2021/10/26

16:45-18:15   Online
Bin Gui (Tsinghua University)
A modern point of view on Antony Wassermann's paper "Operator Algebras and Conformal Field Theory III" (English)
[ Abstract ]
In 1998, Antony Wassermann's groundbreaking paper "Operator Algebras and Conformal Field Theory III" was published. This paper calculated Connes fusion rules for the representations of type A WZW conformal nets and was essential to many subsequent works on conformal nets. In this talk, I will try to convince the audience that many of Wassermann's ideas are powerful for understanding VOA/Conformal net correspondence in the framework of Carpi-Kawahigashi-Longo-Weiner and Tener.
[ Reference URL ]
https://www.ms.u-tokyo.ac.jp/~yasuyuki/tokyo-seminar.htm

2021/10/12

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

2021/07/20

16:45-18:15   Online
Takahiro Hasebe (Hokkaido University)
Spectra of principal minors of random matrices invariant by unitary conjugacy
[ Reference URL ]
https://www.ms.u-tokyo.ac.jp/~yasuyuki/tokyo-seminar.htm

2021/07/13

16:45-18:15   Online
Makoto Yamashita (Univ. Oslo)
Quantization of locally compact groups from matched pairs
[ Reference URL ]
https://www.ms.u-tokyo.ac.jp/~yasuyuki/tokyo-seminar.htm

2021/06/29

16:45-18:15   Online
Rui Okayasu (Osaka Kyoiku University)
Injective factors with trivial bicentralizer
[ Reference URL ]
https://www.ms.u-tokyo.ac.jp/~yasuyuki/tokyo-seminar.htm

2021/06/22

16:45-18:15   Online
Johannes Christensen (KU Leuven)
KMS spectra for group actions on compact spaces (English)
[ Reference URL ]
https://www.ms.u-tokyo.ac.jp/~yasuyuki/tokyo-seminar.htm

2021/06/15

16:45-18:15   Online
Yuhei Suzuki (Hokkaido Univ.)
$C^*$-simplicity has no local obstruction
[ Reference URL ]
https://www.ms.u-tokyo.ac.jp/~yasuyuki/tokyo-seminar.htm

2021/06/08

16:45-18:15   Online
Hannes Thiel (TU Dresden)
The generator rank of $C^*$-algebras (English)
[ Reference URL ]
https://www.ms.u-tokyo.ac.jp/~yasuyuki/tokyo-seminar.htm

2021/06/01

16:45-18:15   Online
Takuya Takeishi (Kyoto Institute of Technology)
KMS states of Toeplitz algebras of graphs
[ Reference URL ]
https://www.ms.u-tokyo.ac.jp/~yasuyuki/tokyo-seminar.htm

2021/05/25

16:45-18:15   Online
Rajarama Bhat (Indian Statistical Institute)
Lattices of logmodular algebras
[ Reference URL ]
https://www.ms.u-tokyo.ac.jp/~yasuyuki/tokyo-seminar.htm

2021/05/18

16:45-18:15   Online
Keisuke Yoshida (Hokkaido Univ.)
Simplicity of $C^*$-algebras associated to some self-similar groups
[ Reference URL ]
https://www.ms.u-tokyo.ac.jp/~yasuyuki/tokyo-seminar.htm

2021/05/11

17:15-18:45   Online
The time slot is different from usual.
Pieter Naaijkens (Cardiff Univ.)
The split property and absence of superselection sectors in 2D (English)
[ Reference URL ]
https://www.ms.u-tokyo.ac.jp/~yasuyuki/tokyo-seminar.htm

2021/04/27

16:45-18:15   Online
Yosuke Kubota (Shinshu Univ.)
The bulk-boundary correspondence for topological insulators on lattices with screw dislocation
[ Reference URL ]
https://www.ms.u-tokyo.ac.jp/~yasuyuki/tokyo-seminar.htm

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