Operator Algebra Seminars

Seminar information archive ~10/26Next seminarFuture seminars 10/27~

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

Seminar information archive

2007/04/26

16:30-18:00   Room #128 (Graduate School of Math. Sci. Bldg.)
緒方芳子 (東大数理)
Nonequilibrium steady states in quantum systems

2007/04/19

16:30-18:00   Room #128 (Graduate School of Math. Sci. Bldg.)
勝良健史 (東大数理)
Graph algebras, Exel-Laca algebras and ultragraph algebras

2007/04/12

16:30-18:00   Room #128 (Graduate School of Math. Sci. Bldg.)
小西由紀子 (東大数理)
ミラー対称性

2007/01/25

15:15-18:00   Room #126 (Graduate School of Math. Sci. Bldg.)
澤田恒河 (東大数理) 15:15-16:15
The Pimsner-Voiculescu AF-embedding of the irrational rotation $C^*$-algebra and its subalgebra
水田有一 (東大数理) 16:30-18:00
A Note on Weak Amenability

2007/01/18

16:30-18:00   Room #126 (Graduate School of Math. Sci. Bldg.)
酒匂宏樹 (東大数理)
Twisted Bernoulli shift actions of $Z^2 \\rtimes SL(2,Z)$

2006/12/28

16:30-18:00   Room #126 (Graduate School of Math. Sci. Bldg.)
Roberto Longo (University of Rome)
Operator Algebras and Conformal Field Theory II

2006/12/21

14:45-18:00   Room #126 (Graduate School of Math. Sci. Bldg.)
Benoit Collins (Univ. Claude Bernard Lyon 1) 14:45-16:15
Convergence of unitary matrix integrals and free probability
Roberto Longo (University of Rome) 16:30-18:00
Operator Algebras and Conformal Field Theory

2006/12/14

16:30-18:00   Room #126 (Graduate School of Math. Sci. Bldg.)
Chongying Dong (UC Santa Cruz)
On uniqueness of the moonshine vertex operator algebra

2006/12/07

16:30-18:00   Room #126 (Graduate School of Math. Sci. Bldg.)
山下真 (東大数理)
An introduction to analytic endomotives (after Connes-Consani-Marcolli)

2006/11/16

16:30-18:00   Room #126 (Graduate School of Math. Sci. Bldg.)
戸松玲治 (東大数理)
商型右余イデアルの特徴づけとポワソン境界の分類

2006/11/09

16:30-18:00   Room #126 (Graduate School of Math. Sci. Bldg.)
水田有一 (東大数理)
Operator-algebraic superrigidity for SL_n(Z) II(Bekkaの論文の紹介)

2006/11/02

16:30-18:00   Room #126 (Graduate School of Math. Sci. Bldg.)
水田有一 (東大数理)
Operator-algebraic superrigidity for SL_n(Z) I(Bekkaの論文の紹介)

2006/10/26

16:30-18:00   Room #126 (Graduate School of Math. Sci. Bldg.)
Remi Leandre (Univ. Bourgogne)
Introduction to Brownian surfaces

2006/10/19

16:30-18:00   Room #126 (Graduate School of Math. Sci. Bldg.)
酒匂宏樹 (東大数理)
A unique decomposition result for HT factors with torsion free core (Popa の論文の紹介)

2006/10/12

16:30-18:00   Room #126 (Graduate School of Math. Sci. Bldg.)
酒匂宏樹 (東大数理)
保測同値関係の Haagerup property

2006/09/11

16:30-18:00   Room #128 (Graduate School of Math. Sci. Bldg.)
Claude-Alain Pillet (Univ. de Toulon et du Var)
Operator-algebraic techniques in nonequilibrium statistical mechanics

2006/08/03

16:30-18:00   Room #128 (Graduate School of Math. Sci. Bldg.)
George Elliott (University of Toronto)
The Cuntz semigroup as an invariant for $C^*$-algebras

2006/07/20

16:30-18:00   Room #052 (Graduate School of Math. Sci. Bldg.)
緒方芳子 (東大数理・学振)
Linear response theory in quantum statistical mechanics

2006/07/13

16:30-18:00   Room #052 (Graduate School of Math. Sci. Bldg.)
小沢登高 (東大数理)
Property (T) for universal lattices, after Y. Shalom
[ Abstract ]
I will talk on Shalom's recent result that
$SL_n(Z[X])$ ($n\\geq 3$) has the property (T).
The talk should be elementary.

2006/07/06

16:30-18:00   Room #052 (Graduate School of Math. Sci. Bldg.)
Rolf Dyre Svegstrup (東大数理)
Endomorphisms of half-sided modular inclusions

2006/06/22

16:30-18:00   Room #052 (Graduate School of Math. Sci. Bldg.)
Detlev Buchholz (Univ. Göttingen)
Integrable models and operator algebras
[ Abstract ]
Recently, it has been possible to establish rigorously the existence of an abundance of 1+1-dimensional local nets of von Neumann algebras describing an interacting massive particle with factorizing scattering matrix. This novel approach is based on structural results in algebraic quantum field theory concerning the modular structure of such theories. It is thus complementary to the older methods of constructive quantum field theory and settles some longstanding questions in the context of integrable models (form-factor program). In this talk, a survey is given on basic ideas, results and perspectives of this promising new approach.

2006/05/25

16:30-18:00   Room #052 (Graduate School of Math. Sci. Bldg.)
松井 宏樹 (千葉大・自然科学)
カントール極小$Z^d$系のコホモロジー

2006/04/20

16:30-18:00   Room #052 (Graduate School of Math. Sci. Bldg.)
戸松 玲治 (東大数理・COE)
Compact Kac 環の極小作用の分類 I

2006/04/13

16:30-18:00   Room #118 (Graduate School of Math. Sci. Bldg.)
勝良 健史 (北大理・学振SPD)
A construction of finite group actions on Kirchberg algebras

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