Yuhei Suzukie-mail:suzukiyu at ms.u-tokyo.ac.jp The Japanese version is here. Last update:11/3/2014.

I am a second year Ph.D. student at Graduate School of Mathematical Sciences, the University of Tokyo (Advisor: Professor Yasuyuki Kawahigashi). I also belong to RIMS, Kyoto University as a research student (Advisor: Professor Narutaka Ozawa). My reserch interest is operator algebras (in particular, C*-algebras) [1-4], discrete groups [1, 3, 4], and topological dynamical systems [2, 4].

List of Papers

- [1]
**Haagerup property for C*-algebras and rigidity of C*-algebras with property (T)**J. Funct. Anal. 265 (2013), 1778--1799. doi:10.1016/j.jfa.2013.06.007, arXiv:1212.5030 - [2]
**Amenable minimal Cantor systems of free groups arising from diagonal actions**J. Reine Angew. Math. (accepted), doi:10.1515/crelle-2014-0071, arXiv:1312.7098 - [3](With M. Mimura, N. Ozawa, and H. Sako)
**Group approximation in Cayley topology and coarse geometry, Part III: Geometric property (T)**Algebraic and Geometric Topology (accepted), arXiv:1402.5105 (The latest version is version 3, 3 Mar 2014.) - [4]
**Group C*-algebras as decreasing intersection of nuclear C*-algebras**Preprint, arXiv:1410.8347 (Original version is available here.)

List of Talks

- [1]
**An example of non-isomorphic C*-algebras whose universal enveloping von Neumann algebras are isomorphic**Junior Meeting on Functional Analysis 2011, Kyoto, 11 Sep. 2011. - [2]
**A measurable group theoretic solution to von Neumann's Problem (after Gaboriau and Lyons)**Operator algebra seminar, University of Tokyo, 2 Mar. 2012. - [3]
**Haagerup property for C*-algebras and rigidity of C*-algebras with property (T)**Kyoto Operator Algebra Day, RIMS, 20 Feb. 2013. - [4]
**About the Haagerup property**The 9th Mathematics Conference for Young Researchers, Hokkaido University, 4 Mar. 2013. - [5]
**On Quasidiagonal Representations of Nilpotent Groups (after Caleb Eckhardt)**Kyoto Operator Algebra Seminar, RIMS, 15 Mar. 2013. - [6]
**Haagerup property for C*-algebras and rigidity of C*-algebras with property (T)**Kansai Operator Algebras Seminar, Osaka Kyoiku University, 8 Jun. 2013. - [7]
^{*}**Haagerup property for C*-algebras and rigidity of C*-algebras with property (T)**The Asian Mathematical Conference 2013 (contributed talk), BEXCO Busan(Korea), 2 Jul. 2013. - [8]
**Amenable minimal dynamical systems of free groups on Cantor set and C*-algebras**FMSP Tambara Student Session, Tambara Institute of Mathematical Sciences, 3 Sep. 2013. - [9]
**Haagerup property for C*-algebras and rigidity of C*-algebras with property**RIMS Workshop Recent Progress in Operator Algebras, RIMS, 11 Sep 2013. - [10]
**Amenable minimal dynamical systems of free groups on Cantor set and C*-algebras**Junior Meeting on Functional Analysis 2013, Kusatsu, 19 Sep. 2013. - [11]
**Haagerup property for C*-algebras and rigidity of C*-algebras with property (T)**MSJ Autumn Meeting 2013, Ehime University, 26 Sep. 2013. - [12]
**Amenable minimal Cantor systems of free groups arising from diagonal actions**Kyoto Operator Algebra Seminar, RIMS, 8 Oct. 2013. - [13]
**Amenable minimal Cantor systems of free groups arising from diagonal actions**Operator algebra seminar, University of Tokyo, 30 Oct. 2013. - [14]
**Amenable minimal Cantor systems of free groups arising from diagonal actions**The 5th Shirahama Conferense, Shirahama, 2 Dec. 2013. - [15]
^{*}**Amenable minimal Cantor systems of free groups arising from diagonal actions**Metric geometry and analysis, Kyoto University, 12 Dec. 2013. - [16]
**Amenable minimal Cantor systems of free groups arising from diagonal actions**East Asian Core Doctoral Forum on Mathematics, Kyoto University, 24 Jan. 2014. - [17]
**Amenable minimal Cantor systems of free groups arising from diagonal actions**Operator Algebras Theory and Ergodic Theory Seminar, Kyusyu University, 3 Feb. 2014. - [18]
**Amenable minimal Cantor systems of free groups arising from diagonal actions**Operator algebra seminar, University of Copenhagen (Denmark), 26 Feb. 2014. - [19]
^{*}**Amenable minimal Cantor systems of free groups arising from diagonal actions**Operator Spaces, Locally Compact Quantum Groups and Amenability, Fields institute, 30 May 2014. - [20]
**Realization of hyperbolic group C*-algebras as decreasing intersection of Cuntz algebras O_2**Kyoto Operator Algebra Seminar, RIMS, 17 Jun. 2014. - [21]
**Some isomorphism theorems of O_2 (Theorem of Elliott and Rørdam)**Summer Camp on Operator Algebras, Otaru, 19 Jul, 2014. - [22]
^{*}**Amenable minimal Cantor systems of free groups arising from diagonal actions**ICM Satellite Conference on Operator Algebras and Applications, Cheongpung (Korea), 9 Aug. 2014. - [23]
**Ambient nuclear C*-algebra of reduced free group C*-algebra smaller than boundary algebra**Junior Meeting on Functional Analysis 2014, Gifu, 20 Aug. 2014. - [24]
^{*}**Realization of hyperbolic group C*-algebras as decreasing intersection of Cuntz algebras O_2**Classification, STructure, Amenability and Regularity (CStar) Conference, University of Glasgow, Sep. 2014. - [25]
**Realization of group C*-algebras with approximation property as decreasing intersection of Cuntz algebras O_2**Recent Developments in Operator Algebras, RIMS, 9 Sep. 2014. - [26]
**Amenable minimal Cantor systems of free groups arising from diagonal actions**MSJ Autumn Meeting 2014, Hiroshima university, 27 Sep. 2014. - [27]
**Realization of hyperbolic group C*-algebras as decreasing intersection of Cuntz algebras O_2**Operator algebra seminar, University of Tokyo, 8 Oct. 2014. - [--]
**Group C*-algebras as decreasing intersection of nuclear C*-algebras**Kansai Operator Algebras Seminar , Shirahama, Nov. 2014.

Short C.V.

- Jan. 1989 Born in Hokkaido, Japan
- Mar. 2011 Bachelor of Sciences, Hokkaido University. (advisor:Professor Akitaka Kishimoto)
- Nov. 2012 FMSP course student, Leading Graduate Course for Frontiers of Mathematical Sciences and Physics (until Mar. 2016)
- Mar. 2013 Master of Mathematical Sciences, University of Tokyo, advisor:Professor Yasuyuki Kawahigashi Master's thesis：Haagerup property for C*-algebras and rigidity of C*-algebras with property (T) (almost equivalent to the paper [1] in the above list)
- Apr. 2013 JSPS Research Fellowship for Young Scientists(DC1) (No. 25・7810)(until Mar. 2016)

Overseas visits 2013

- Korea, The Asian Mathematical Conference 2013 30 Jun.--4 Jul.

- Denmark, University of Copenhagen Feb. 13--Mar. 17
- Canada, Fields institute Mar. 25--Apr. 17
- Canada, Fields institute May. 25--Jun. 1
- Korea, Operator Algebras and Applications (ICM Satellite Conference), Aug. 7--12
- United Kingdom, Classification, STructure, Amenability and Regularity (C Star), Aug. 24--Sep. 6

List of travels in Japan 2013

- University of Tokyo, Workshop on Operator Algebras for the 80th birthday of Masamichi Takesaki, 5/10--12.
- University of Tokyo, Lecture by Narutaka Ozawa and Takagi Lecture, 5/20--26.
- Osaka kyoiku university, Kansai Operator Algebra Seminar, 6/8.
- Nagoya University, Rigidity seminar, 6/28--29.
- Tambara, FMSP Tambara Student Session, 9/2--6.
- RIMS, Recent Progress in Operator Algebras, 9/11--13.
- Kusatu, Junior Meeting on Functional Analysis 2013, 9/17--19.
- Ehime university, MSJ Autumn Meeting 2013, 9/24--27.
- University of Tokyo,Operator algebra seminar, 10/30--31.
- University of Tokyo, Lecture by Reiji Tomatsu, 11/5--8.
- Ochanomizu University, Conference of Operator theory and Operator algebra theory, 11/22--24.
- Shirahama, The 5th Shirahama Conferense, 12/2--5.
- Kyoto University, Metric geometry and analysis 12/9--13.

- University of Tokyo, Rigidity School, 1/8--10.
- Kyusyu university, Operator Algebras Theory and Ergodic Theory Seminar, 2/2--6.
- Chiba university, discussion with Hiroki Matui, 3/20--22.
- Nara university of education, Kansai Operator Algebra Seminar, 6/28.
- Otaru, Summer Camp on Operator Algebras, 7/18--7/23.
- University of Tokyo, Operator algebra seminar, Hyperbolic Geometry and Geometric Group Theory, 7/29--8/5.
- Gifu, Junior Meeting on Functional Analysis 2014, 8/20--23.
- RIMS, Recent Developments in Operator Algebras, 9/8--10.
- Hiroshima University, MSJ Autumn Meeting 2014, 9/25--28.
- University of Tokyo, Operator algebra seminar, 10/8.
- Hokkaido University, 11/6--10.
- University of Tokyo, Lecture by Reiji Tomatsu, 11/17--21.
- University of Tokyo, Rigidity School, Tokyo 2014 (2nd), 11/22--24.
- Shirahama, Kansai Operator Algebra Theminar, 11/29--30.