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J-GLOBAL ID:200901013368488286   Update date: Jan. 31, 2024

Nagisa Masaru

ナギサ マサル | Nagisa Masaru
Affiliation and department:
Job title: 特任研究員
Other affiliations (1):
Homepage URL  (1): http://www.math.s.chiba-u.ac.jp/~nagisa
Research field  (1): Mathematical analysis
Research keywords  (3): Operator Inequality ,  Operator Algebra ,  Operator Algebras
Research theme for competitive and other funds  (27):
  • 2016 - 2019 Decomposition of Maps on Operator Algebras with Numerical Radius
  • 2014 - 2018 Transition probability among quantum states and their asymptotic behavior
  • 2010 - 2014 作用素空間とその応用
  • 2008 - 2011 順序付きノルム空間の数域作用素空間への埋め込み
  • 2006 - 2008 ノルム空間の数域半径作用素空間への埋め込みに関する研究
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Papers (43):
  • Masaru Nagisa, Yasuo Watatani. Non-linear traces on the algebra of compact operators and majorization. Indagationes Mathematicae. 2023. 34. 4. 724-751
  • M. Nagisa, Y. Watatani. Non-linear traces on matrix algebras, majorization, unitarily invariant norms and 2-positivity. Analysis Mathematica. 2022. 48. 1105-1126
  • Masaru Nagisa, Yasuo Watatani. Non-linear monotone positive maps. J. Operator Theory. 2022. 87. 1. 203-228
  • Priyabrata Bag, Santanu Dey, Masaru Nagisa, Hiroyuki Osaka. The order-n minors of certain (n + k)×n matrices. Linear Algebra and its Applications. 2020. 603. 368-389
  • Nagisa Masaru. Transforms on operator monotone functions. 2019. 82(293). 3. 229-244
more...
MISC (18):
  • 渚 勝. 作用素ノルム不等式について. 数理解析研究所講究録. 2019. 2113
  • 渚 勝. ある関数族の正定値関数による順序. 数理解析研究所講究録. 2017. 2033. 168-178
  • NAGISA Masaru. Some examples of operator monotone functions. 2016. 1996. 34-44
  • 渚 勝. Szaboのタイプの関数の行列単調性について (作用素の平均とその関連). 数理解析研究所講究録. 2015. 1935. 78-88
  • Masaru Nagisa. Order of operators determined by operator mean. 2014. 1893. 136-142
more...
Books (1):
  • 標準 微分積分
    裳華房 2002
Lectures and oral presentations  (32):
  • コンパクト環上の非線形トレースとマジョリゼーション
    (日本数学会年会 2023)
  • 行列の p-ノルム
    (日本数学会年会 2023)
  • On unitarily invariant Norms on Matrices
    (Functional Analysis and Operator Algebra Seminar 2019)
  • Inequalities of operators and Operator norm Inequalities
    (Recent Developments in Operator Algebras 2019)
  • Monotone Maps on Operator Algebras
    (2019)
more...
Education (2):
  • 1977 - 1984 Osaka University Graduate School of Engineering Science
  • 1973 - 1977 Osaka University School of Science Department of Mathematics
Professional career (1):
  • Doctor(Engineering) (Osaka University)
Work history (6):
  • 2020/04 - 現在 Ritsumeikan University College of Science and Engineering
  • 2020/04 - 現在 Chiba University Graduate School of Science professor emeritus
  • 1999/07 - 2020/03 Chiba University Graduate School of Science professor
  • 1990/04 - 1999/06 Chiba University Faculty of Science associate professor
  • 1986/04 - 1990/03 Osaka University School of Engineering Science Direct Affiliates
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Committee career (7):
  • 1999/10 - 現在 日本数理科学協会(現国際数理科学協会) 論文誌編集委員会理事
  • 2016/03 - 2019/02 日本数学会 函数解析学分科会委員
  • 2016/03 - 2018/02 日本数学会 函数解析学分科会評議員
  • 2013/03 - 2015/02 横断型基幹科学技術研究団体連合 理事(会誌編集委員)
  • 2007/03 - 2008/02 日本数学会 関数解析分科会委員
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Association Membership(s) (2):
INTERNATIONAL SOCIETY FOR MATHEMATICAL SCIENCES ,  日本数学会
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