Curriculum Vitae




Personal Data
    Name: Kenta Ozeki (小関 健太)
    Birthday: 1982/8/3
    Blood group: A
    Citizenship: Japan

Education
  April 2001 - March 2005
  Department of Mathematics, Keio University

  April 2005 - September 2006
  Master Course in Mathematics, Keio University
  Thesis : Hamilton cycles, Dominating Cycles and Cyclability in Graphs
  Supervisor : Professor Katsuhiro Ota

  September 2006 - March 2009
  Doctor Course in Mathematics, Keio University
  Thesis : Hamilton Cycles, Paths and Spanning Trees in a Graph
  Supervisor : Professor Katsuhiro Ota

Employment
  April 2007 - March 2008
  Research Assistant, Keio University
  April 2008 - March 2009
  Research Fellow of the Japan Society for the Promotion of Science (DC2)
  April 2010 - October 2012
  Research Fellow of the Japan Society for the Promotion of Science (PD)
  April 2009 - March 2010
  Visiting Researcher at Keio University
  April 2010 - October 2012
  Visiting Researcher at National Institute of Informatics
  November 2012 - January 2017
  Project Assistant Professor at National Institute of Informatics
  February 2017 - present
  Associate Professor at Yokohama National University

Teaching Experience
  1.   April 2017 - Present
      Yokohama National University
        - 離散数学 I (Discrete Mathematics I)
        - 数学演習 I (Exercises in Mathematics I)
        - 数理科学 I (Mathematical Science I)
  2.   April 2015 - Present
      Part-time Lecturer, Keio University
        - 有限数学 第2 (Finite Mathematics II)
  3.   September 2012 - March 2015
      Part-time Lecturer, Tokai University
        - 離散数学 (Discrete Mathematics)
  4.   April 2008 - March 2010
      Part-time Lecturer, Shonan Institute of Technology
        - グラフ理論 (Graph Theory)
        - 計算機数学２ (Computer Science)
        - 情報数学基礎２ (Analysis)
        - 情報数学基礎４ (Linear Algebra)
  5.   April 2005 - March 2009
      Teaching Assistant, Keio University
Books
  1. ``IT Text 離散数学'' (Japanese), R. Matsubara, A. Ohshima, S. Fujita, K. Ozeki, T. Nakamigawa, T. Sakuma and M. Tsugaki, published by Ohmsha, 2010年10月.
Contributed articles
  1. 中本敦浩，小関健太，``四足定理とその後''，「数学」73(2) （2021年4月) 岩波書店, 133--160.
  2. ``エレガントな解答を求む''，数学セミナー2021年4月号 (出題) 及び 2021年7月号（解答）, 日本評論社.
  3. ``エレガントな解答を求む''，数学セミナー2020年4月号 (出題) 及び 2020年7月号（解答）, 日本評論社.
  4. ``ネットワークとグラフ理論'', 特集 ネットワークから見る世界，数理科学，2020年2月号, 株式会社サイエンス社.
  5. ``組合せ論・グラフ理論''，特集 すごい反例，数学セミナー2019年11月号, 日本評論社.
  6. ``エレガントな解答を求む''，数学セミナー2019年4月号 (出題) 及び 2019年7月号（解答）, 日本評論社.
  7. ``エレガントな解答を求む''，数学セミナー2018年5月号 (出題) 及び 2018年8月号（解答）, 日本評論社.
  8. ``閉曲面上のグラフのハミルトン閉路'', グラフアルゴリズムの最先端，電子情報通信学会誌，2018年3月号, 電子情報通信学会.
  9. ``組合せ和の公式''，中学・高校の公式から大学数学へ，数学セミナー2017年5月号, 日本評論社.
  10. ``ハミルトン閉路について''，特集 グラフ理論とOR，オペレーションズ・リサーチ誌 12月号 2016年 Vol.61, 日本オペレーションズ・リサーチ学会.
  11. ``オイラーの公式とその応用''，私の選ぶとっておきの数式，数学セミナー2016年9月号, 日本評論社.
  12. ``4色定理, 3色定理，そして flow 予想'', グラフ理論の新展開，数学セミナー2014年1月号, 日本評論社.
  13. ``強理想グラフ定理''，この10年で解決した問題，数学セミナー2012年11月号, 日本評論社.
  14. ``エレガントな解答を求む''，数学セミナー2010年7月号 (出題) 及び 2010年10月号（解答）, 日本評論社.
Award
  1. Nominated as an excellent reviewer for the journal ``Discrete Mathematics'' in 2015
  2. 2014年度 応用数学研究奨励賞 (for outstanding young mathematicians in the area of Applied math. in Japan) in 2013
  3. 2013年度 日本数学会賞建部賢弘奨励賞 (Takebe Prize) (for outstanding young mathematicians in Japan) in 2013
  4. 国際会議論文発表奨励賞 (for outstanding international conference papers by students in Keio) in 2007
  5. 藤原賞 (Fujiwara Prize) (for outstanding students in Science and Technology at Keio University) in 2005
  6. 塾長奨励賞 (Jukucho Shorei Prize) (for outstanding students in Keio) in 2005
  7. 塾長賞 (Jukucho Prize) (for outstanding students in Keio) in 2000   (when I was a high school student)
Grant
  1. November 2014 -- Novemver 2015.
    Grant for Basic Science Research Projects from The Sumitomo Foundation.
  2. April 2013 -- March 2017.
    Grant-in-Aid for Young Scientists (B) by Japan Society for the Promotion of Science (JSPS).
  3. April 2010 -- March 2013.
    Grant-in-Aid for JSPS fellows by Japan Society for the Promotion of Science (JSPS).
  4. April 2008 -- March 2010.
    Grant-in-Aid for JSPS fellows by Japan Society for the Promotion of Science (JSPS).
Editorial Board
  1. Graphs and Combinatorics (January 2015 -- Present)
  2. Theory and Applications of Graphs (October 2015 -- Present)
  3. Journal of Algebra Combinatorics Discrete Structures and Applications (May 2014 -- Present)
Organization
  1. Organizer, Japanese Conference on Combinatorics and its Applications (JCCA- 2017)・離散数学とその応用研究集会2017, Kumamoto University, Japan, August 2017.
  2. Organizer, 離散数学とその応用研究集会2016, Matsushima, Japan, August 2016.
  3. Organizer, The Japanese Conference on Combinatorics and its Applications (JCCA 2016) in Kyoto, Kyoto University, Japan, May 2016.
  4. Organizer, Japan Conference on Graph Theory and Combinatorics, Nihon University, Japan, May 2014.
  5. Organizer, 25th Workshop on Topological Graph Theory, Yokohama National University, Japan, November 2013.
  6. Organizer, 7th Workshop on Combinatorics for Young Researchers (第7回 組合せ論若手研究集会), Keio University, Japan, February 2011.
  7. Organizer, 離散数学とその応用研究集会2010, Kochi University, Japan, July--August 2010.
  8. Organizer, 岡村治子先生退職記念研究集会, Konan University, Japan, March 2010.
  9. Organizer, 第6回 組合せ論若手研究集会, Keio University, Japan, February 2010.
  10. Organizer, 第5回 組合せ論若手研究集会, Keio University, Japan, February 2009.
  11. Organizer, 第4回 組合せ論若手研究集会, Keio University, Japan, February 2008.
Hobby
  Shogi, that is a traditional game in Japan like chess
  I won ``東日本学生名人戦'' (the tournament for university students in East Japan) in 2004, and the third prize ``朝日アマ名人戦'' (the tournament for all amateur players in Japan) in 2005!
  In 2004, Keio university won the championship for students, called ``オール学生選手権'', in team competition. I was a member of the team.

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