Operator Algebra Seminars

Seminar information archive ~12/04Next seminarFuture seminars 12/05~

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

Seminar information archive

2022/11/29

16:45-18:15   Room #128 (Graduate School of Math. Sci. Bldg.)
Yuki Arano (Kyoto Univ.)
Actions of tensor categories on $C^*$-algebras
[ Reference URL ]
https://www.ms.u-tokyo.ac.jp/~yasuyuki/tokyo-seminar.htm

2022/11/22

16:45-18:15   Room #128 (Graduate School of Math. Sci. Bldg.)
Ryosuke Sato (Chuo Univ.)
Multiplicative characters and Gaussian fluctuation limits
[ Reference URL ]
https://www.ms.u-tokyo.ac.jp/~yasuyuki/tokyo-seminar.htm

2022/11/15

16:45-18:15   Room #128 (Graduate School of Math. Sci. Bldg.)
Michiya Mori (Univ. Tokyo)
Ring isomorphisms of locally measurable operator algebras
[ Reference URL ]
https://www.ms.u-tokyo.ac.jp/~yasuyuki/tokyo-seminar.htm

2022/11/08

16:45-18:15   Room #128 (Graduate School of Math. Sci. Bldg.)
Ryoya Arimoto (RIMS, Kyoto Univ.)
On the type of the von Neumann algebra of an open subgroup of the Neretin group
[ Reference URL ]
https://www.ms.u-tokyo.ac.jp/~yasuyuki/tokyo-seminar.htm

2022/11/01

16:45-18:15   Room #128 (Graduate School of Math. Sci. Bldg.)
Hiroki Ishikura (Univ. Tokyo)
Permutation stability of finitely generated free metabelian groups
[ Reference URL ]
https://www.ms.u-tokyo.ac.jp/~yasuyuki/tokyo-seminar.htm

2022/10/18

16:45-18:15   Room #128 (Graduate School of Math. Sci. Bldg.)
Valerio Proietti (Univ. Tokyo)
A geometric Elliott invariant and noncommutative rigidity of mapping tori (English)
[ Reference URL ]
https://www.ms.u-tokyo.ac.jp/~yasuyuki/tokyo-seminar.htm

2022/10/11

16:45-18:15   Room #128 (Graduate School of Math. Sci. Bldg.)
Takuya Takeishi (Kyoto Inst. Tech.)
Constructing number field isomorphisms from *-isomorphisms of certain crossed product C*-algebras
[ Reference URL ]
https://www.ms.u-tokyo.ac.jp/~yasuyuki/tokyo-seminar.htm

2022/09/20

16:45-18:15   Room #128 (Graduate School of Math. Sci. Bldg.)
Robert Coquereaux (CNRS/CPT)
Honeycombs, polytopes, and representation theory (English)
[ Reference URL ]
https://www.ms.u-tokyo.ac.jp/~yasuyuki/tokyo-seminar.htm

2022/07/12

16:45-18:15   Room #128 (Graduate School of Math. Sci. Bldg.)
Mao Hoshino (Univ. Tokyo)
Relative Drinfeld centers associated to monoidal functors
[ Reference URL ]
https://www.ms.u-tokyo.ac.jp/~yasuyuki/tokyo-seminar.htm

2022/07/05

16:45-18:15   Room #128 (Graduate School of Math. Sci. Bldg.)
Mizuki Oikawa (Univ. Tokyo)
Frobenius algebras associated with the $\alpha$-induction for twisted modules of conformal nets
[ Reference URL ]
https://www.ms.u-tokyo.ac.jp/~yasuyuki/tokyo-seminar.htm

2022/06/07

16:45-18:15   Room #128 (Graduate School of Math. Sci. Bldg.)
Taro Sogabe (Univ. Tokyo)
Kirchberg algebras sharing the same homotopy groups of their automorphism groups
[ Reference URL ]
https://www.ms.u-tokyo.ac.jp/~yasuyuki/tokyo-seminar.htm

2022/05/31

16:45-18:15   Room #128 (Graduate School of Math. Sci. Bldg.)
Yusuke Isono (RIMS, Kyoto University)
Pointwise inner automorphisms of almost periodic factors
[ Reference URL ]
https://www.ms.u-tokyo.ac.jp/~yasuyuki/tokyo-seminar.htm

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

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