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Research (Hiroki SAKO)

[Portrait]

Lecturer, Tokai University
Kitakaname 4-1-1, Hiratsuka, Kanagawa 259-1292, Japan

Email: My first name at tokai-u.jp

I am interested in operator algebras([1 - 6, 8, 10]),
discrete groups([1, 2, 9, 10]),
metric spaces([4-6, 8 - 10]) and
probability measures([7]).


List of my papers

[10] M. Mimura, N. Ozawa, H. Sako, and Y. Suzuki, Group approximation in Cayley topology and coarse geometry, Part III: Geometric property (T),
  preprint arxiv:1402.5105
abstract

[9] M. Mimura and H. Sako, Group approximation in Cayley topology and coarse geometry, Part I: Coarse embeddings of amenable groups,
  preprint arxiv:1310.4736
abstract

[8] H. Sako, Property A for coarse spaces,
  preprint arXiv:1303.7027
  abstract

[7] H. Saigo and H. Sako, Indeterminacy of the moment problem for Symmetric probability measures,
  preprint arXiv:1302.0382
  abstract

[6] H. Sako, Translation C^*-algebras and property A for uniformly locally finite spaces,
  preprint arXiv:1212.5900.
  abstract

[5] H. Sako, A generalization of expander graphs and local reflexivity of uniform Roe algebras,
  J. Funct. Anal., 265 (2013), no. 7, 1367--1391, arXiv:1208.5642.
  abstract

[4] H. Sako, Property A and the operator norm localization property for discrete metric spaces,
  J. Reine Angew. Math., accepted, arXiv:1203.5496.
  abstract

[3] Hiroki Sako, Concrete Classification and Centralizers of Certain (Z^2 \rtimes SL(2, Z))-actions,
  J. Math. Soc. Japan, 62 (2010), no.1, 135--166, arXiv:0704.1533.
  abstract

[2] Hiroki Sako, Measure Equivalence Rigidity and Bi-exactness of Groups,
  J. Funct. Anal., 257 (2009), 3167--3202, arXiv:0901.3376.
  abstract

[1] Hiroki Sako, The class S as an ME invariant,
  Internat. Math. Res. Notices, 2009, 2749--2759, arXiv:0901.3374.
  abstract


A short CV

Born: October 5, 1982

Education:
April 2001 - March 2005 (Undergraduate), University of Tokyo
April 2005 - March 2007 (Master course), Graduate school of Mathematical Sciences, University of Tokyo
April 2007 - March 2009, Department of Mathematics, University of California Los Angeles (Adviser: Sorin Popa)
April 2007 - March 2010 (Doctoral course), Graduate school of Mathematical Sciences, University of Tokyo (Adviser: Yasuyuki Kawahigashi)

Degree:
March 2005, B.Sc., University of Tokyo
March 2007, Master, Graduate School of Mathematical Sciences, University of Tokyo
March 2010, Doctor, Graduate School of Mathematical Sciences, University of Tokyo

Fellowship:
April 2007--March 2010, Research Fellowship of the Japan Society for the Promotion of Science for Young Scientists (DC1)
April 2010--March 2013, Research Fellow of the Japan Society for the Promotion of Science (PD)

Job:
April 2013--, Lecturer, Tokai University, School of Science

Citizenship: Japan


Summary of my results in metric geometry

Slide for the conference ``Metric geometry and analysis'' in Kyoto University
December 10, 2013
The slide does not include joint works with Masato Mimura.


Public Data

Google Scholar

List of my preprints in arXiv


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