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J-GLOBAL ID：201801010046345154   Update date: Jan. 30, 2024

Kikumasa Isao

キクマサ イサオ | Kikumasa Isao
Affiliation and department：
Yamaguchi University

About Yamaguchi University


Research field  (1)： Algebra
Research theme for competitive and other funds  (22)：
  • 2015 - 2019 Research on direct sum decompositions of lifting modules and its application
  • 2014 - 2018 Study on quasi-Frobenius rings based on the Faith conjecture
  • 2011 - 2013 Faith conjecture and related studies
  • 2009 - 2011 VON NEUMANN REGULAR RINGS WITH COMPARABILITIES
  • 2008 - 2010 Research on inequalities related to classical or quantum entropy
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Papers (15)：
  • Isao Kikumasa, Kiyoichi Oshiro. Quaternion rings over local rings. JOURNAL OF ALGEBRA AND ITS APPLICATIONS. 2022. 21. 11
  • Isao Kikumasa, Yosuke Kuratomi, Yoshiharu Shibata. Almost projective modules and generalized projective modules. Communications in Algebra. 2022. 50. 10. 4494-4509
  • Isao Kikumasa, Yosuke Kuratomi, Yoshiharu Shibata. Factor square full modules. Communications in Algebra. 2021. 49. 6. 2326-2336
  • Isao Kikumasa, Kazutoshi Koike, Kiyoichi Oshiro. Complex rings and quaternion rings. East-West Journal of Mathematics. 2019. 21. 1. 1-19
  • Derya Keskin Tütüncü, Isao Kikumasa, Yosuke Kuratomi, Yoshiharu Shibata. On dual of square free modules. Communications in Algebra. 2018. 46. 8. 3365-3376
ｍore...
MISC (7)：
  • Yoshiharu Shibata, Isao kikumasa, Yosuke Kuratomi. When is a quasi-discrete module quasi-projective?. Proceedings of the 52nd Symposium on Ring Theory and Representation Theory. 2020. 116-122
  • Kikumasa I, Oshiro K, Yoshimura H. Complex rings, quaternion rings and octonion rings. Proceedings of the 50th Symposium on Ring Theory and Representation Theory. 2018. 74-83
  • 市川 哲彦, 立野 正浩, 菊政 勲. 群論的手法によるXML情報検索のための索引構造および問合せ処理について. 電子情報通信学会第19回データ工学ワークショップ (DEWS2008)論文集. 2008
  • A construction of local QF-rings with radical cubed zero. 2007. 36-44
  • Kumakiri Y, Fujiwara Y, Matsushima H, Takata J, Murata T, Kikumasa I. 疑似体験による情報倫理教育へのアプローチ. 日本教育工学会第18回大会講演論文集. 2002. 469-470
ｍore...
Books (2)：
  • Complex Rings, Quaternion Rings and Octonion Rings
    LAMBERT Academic Publishing 2020 ISBN:9786200568922
  • 工学・理学を学ぶための微分積分学
    共立出版 2000 ISBN:4320016645
Lectures and oral presentations  (12)：
  • On relative almost projectivity and relative generalized projectivity
    (日本数学会2021年度秋季総合分科会 2021)
  • Quaternion rings over local rings
    (第53回環論および表現論シンポジウム 2021)
  • On almost N-projective modules and generalized N-projective modules,
    (第53回環論および表現論シンポジウム 2021)
  • Dual square full加群について
    (日本数学会2020年度年会 2020)
  • 準離散加群のdual square full加群による特徴づけ
    (令和元年度日本数学会中国・四国支部例会 2020)
ｍore...
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