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J-GLOBAL ID：200901085064854937   Update date: Oct. 26, 2023

OKA Hirokazu

オカ ヒロカズ | OKA Hirokazu
Affiliation and department：
Ibaraki University Graduate School of Science and Engineering (Engineering) Common Section

About Ibaraki University Graduate School of Science and Engineering (Engineering) Common Section


Job title： Professor
Research field  (1)： Basic analysis
Papers (22)：
  • H. Oka, T Miura, N. Niwa and S.-E. Takahasi. Ordered continuous bands on the positive real numbers and distribution. Publ. Math. Debrecen. 2023. 102. 3-4. 507-524
  • T. Miura, N. Niwa, H. Oka and S.-E. Takahasi. Special noncancellative commutative semigroup operations on the real numbers and distribution. Acta Math. Hungar. 2022. 168. 2. 363-372
  • Toshitaka Matsumoto, Hirokazu Oka, Naoki Tanaka. Evolution equations governed by quasilinear operators satisfying Caratheodory's conditions. Dissertationes Mathematicae. 2022. 571. 1-70
  • Takeshi Miura, Norio Niwa, Hirokazu Oka, Sin-Ei Takahasi. A special noncommutative semigroup operation on the real numbers and left or right distribution. Results in Mathematics. 2022. 77. 2. Article number: 55
  • Hirokazu Oka, Takeshi Miura, Sin-Ei Takahasi. Semigroup operations which are distributive over a given semigroup operation on positive real numbers. Acta Scientiarum Mathematicarum (Szeged). 2020. 86. 3-4. 493-502
ｍore...
MISC (1)：
  • 高橋眞映, 岡裕和, 三浦毅. 楕円型微分方程式の解集合について. 京都大学数理解析研究所講究録. 2002. 1246. 134-138
Books (2)：
  • 数理解析への「微分積分の基礎」
    学術図書出版社 2013 ISBN:9784780603521
  • 1次近似で視る多変数の微分積分
    学術図書出版社 2013 ISBN:9784780603538
Lectures and oral presentations  (3)：
  • Carath\'eodory条件を満たす準線形作用素に支配される発展方程式に対する適切性と近似可解性について
    (2020日本数学会・秋季総合分科会 2020)
  • 正数空間上の半群演算と分配法則
    (RIMS 共同研究 (公開型) 関数空間の一般化とその周辺 2018)
  • 掛け算や足し算によって分配される実数上のある種の半群演算の決定
    (2018年度日本数学会年会 函数解析学分科会 2018)
Professional career (1)：
  • 理学(博士) (Waseda University)
Work history (6)：
  • 2018/04 - 茨城大学大学院 理工学研究科工学野 教授
  • 2009/04 - Collegue of Engineering, Ibaraki University Professor
  • 2007/04 - College of Engineering, Ibaraki University 准教授
  • 2004/04 - Ibaraki University Faculty of Engineering Assistant Professor
  • 1996/04 - College of Engineering, Ibaraki University Lecturer
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Association Membership(s) (1)：
日本数学会
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