Rchr
J-GLOBAL ID：200901009386720920   Update date: Jan. 09, 2025

Okayasu Rui

オカヤス ルイ | Okayasu Rui
Affiliation and department：
Osaka Kyoiku University Division of Math, Sciences, and Information Technology in Education

About Osaka Kyoiku University Division of Math, Sciences, and Information Technology in Education


Job title： Associate Professor
Homepage URL  (1)： http://www.osaka-kyoiku.ac.jp/~rui/index-j.html
Research field  (1)： Mathematical analysis
Research keywords  (1)： Operator algebras
Research theme for competitive and other funds  (7)：
  • 2017 - 2024 作用素環の近似性の研究とその応用
  • 2013 - 2017 General study of operator algebras and discrete groups
  • 2010 - 2015 A csomprehensive study of symmetries of operator algebras
  • 2009 - 2012 Actions of discrete groups on operator algebras and their invariants
  • 2008 - 2010 Relative entropy for pairs of subalgebras and invariants arising from automorphisms
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Papers (17)：
  • Rui Okayasu. A note on injectivite factors with trivial bicentralizer. Publications of Research Institute for Mathematical Sciences, Kyoto university. 2024. 60. 109-144
  • 岡安 類, 貞末 岳, 瀬尾 祐貴, 柳本 朋子, 深澤 優子, 鈴木 康文, 田中 伸治, 今澤 宏太, 島橋 尚吾. 数学・理科教育におけるデジタル教科書の利活用に関する研究. 大阪教育大学紀要 人文社会科学・自然科学. 2023. 71. 45-67
  • 岡安 類. 高校生のための等周問題. 数学教育研究. 2023
  • Rui Okayasu, Narutaka Ozawa, Reiji Tomatsu. Haagerup approximation property via bimodules. Mathematica Scandinavica. 2017. 121. 1. 75-91
  • Rui Okayasu, Reiji Tomatsu. Haagerup approximation property and positive cones associated with a von Neumann Algebra. Journal of Operator Theory. 2016. 75. 2. 259-288
ｍore...
MISC (6)：
  • Rui Okayasu. Haagerup approximation property for von Neumann algebras. 第55回実函数論・函数解析学合同シンポジウム講演集. 2016. 35-44
  • Rui Okayasu. Types of von Neumann algebras arising from boundary actions of hyperbolic groups. S\=urikaisekikenky\=usho K\=oky\=uroku. 2005. 1459. 74--81
  • Rui Okayasu. Quasicentral approximate units and finitely generated groups.(Japanese). S\=urikaisekikenky\=usho K\=oky\=uroku. 2004. 1354. 74--82
  • Rui Okayasu. Quasicentral approximate units relative to the Macaev norm.(Japanese). S\=urikaisekikenky\=usho K\=oky\=uroku. 2003. 1300. 52--64
  • Rui Okayasu. A construction of type III factors from boundary actions.(Japanese). S\=urikaisekikenky\=usho K\=oky\=uroku. 2002. 1250. 106--113
ｍore...
Books (2)：
  • ガイダンス 微分積分
    サイエンス社 2019
  • 作用素環の数理
    筑摩書房 2015
Education (2)：
  • - 2003 Kyoto University Graduate School, Division of Natural Science Mathematics and Mathematical Analysis
  • - 1998 Science University of Tokyo Faculty of Science and Engineering Department of Mathematics
Professional career (3)：
  • 修士(数理科学) (東京大学)
  • Doctor(Science) (Kyoto University)
  • 博士(理学) (京都大学)
Work history (6)：
  • 2017/04/01 - 京都大学・非常勤講師
  • 2014/04/01 - 2016/03/31 京都大学・非常勤講師
  • 2007/04/01 - 大阪教育大学教育学部・准教授
  • 2006/04/01 - 2007/03/31 Associate Professor, Faculty of Education, Osaka Kyoiku University
  • 2005/04/01 - 2007/03/31 四條畷学園短期大学・非常勤講師
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Association Membership(s) (1)：
Mathematical Society of Japan
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