MATSUZAKI Shosaku

マツザキショウサク | MATSUZAKI Shosaku

Affiliation and department：
Job title： Associate professor
Homepage URL (1)： http://shosaku.sakura.ne.jp/index.html

Research field (1)： Geometry

Research keywords (16)： spatial surface , 多様体の余次元1の埋め込み , cocycle invariant , rack , quandle , multiple group rack , 群コサイクル , rack cocycle , quandle cocycle , 3-manifold , knots , handlebody-knot , fibered 3-manifold , Graph theory , Spatial graphs , Low dimensional topology

Research theme for competitive and other funds (1)：

2026 - 2029 3次元空間内の曲面のイソトピーによる分類

Papers (11)：

Shosaku Matsuzaki, Tomo Murao. (Co)homology of racks and multiple group racks for compact oriented surfaces in the 3-sphere. International Journal of Mathematics. 2024. 36. 02
Atsushi Ishii, Masahide Iwakiri, Seiichi Kamada, Jieon Kim, Shosaku Matsuzaki, Kanako Oshiro. Cocycles of G-Alexander biquandles and G-Alexander multiple conjugation biquandles. Topology and its Applications. 2021. 301. 107512-107512
Shosaku Matsuzaki. A diagrammatic presentation and its characterization of non-split compact surfaces in the 3-sphere. Journal of Knot Theory and Its Ramifications. 2021. 30. 09
Atsushi Ishii, Shosaku Matsuzaki, Tomo Murao. A multiple group rack and oriented spatial surfaces. Journal of Knot Theory and Its Ramifications. 2020. 29. 07. 2050046-2050046
Atsushi Ishii, Masahide Iwakiri, Seiichi Kamada, Jieon Kim, Shosaku Matsuzaki, Kanako Oshiro. Biquandle (co)homology and handlebody-links. Journal of Knot Theory and Its Ramifications. 2018. 27. 11. 1843011-1843011

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MISC (1)：

Matsuzaki Shosaku, Taniyama Kouki. A common stabilization of diagrams of a knot (等距離写像研究の多角的アプローチ). 数理解析研究所講究録. 2017. 2035. 49-52

Lectures and oral presentations (32)：

3次元球面に埋め込まれたコンパクト曲面のイソトピーについて
(研究集会「結び目理論」 2024)
Multiple group racks and cocycle invariants of surfaces in the 3-sphere
(2021)
3次元球面に埋め込まれた有向曲面のコサイクル不変量
(東北結び目セミナー2021 2021)
Oriented surfaces in the 3-sphere and their coloring invariants
(The 15th East Asian Conference on Geometric Topology(国際学会) 2020)
Cocycles of G-Alexander biquandles and G-Alexander multiple conjugation biquandles
(2019)

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Education (3)：

2012 - 2015 Waseda University Graduate School of Education
2010 - 2012 Waseda University Graduate School of Education
2006 - 2010 Waseda University School of Education Department of Mathematics

Professional career (1)：

PhD in Science (Waseda University)

Work history (8)：

2026/04 - 現在 Waseda University School of Education
2023/04 - 現在 Ashikaga University Liberal Arts Education Center
2022/09 - 2023/03 Waseda University School of Education part-time teacher
2020/04 - 2023/03 Ashikaga University Liberal Arts Education Center Associate professor
2017/04 - 2020/03 Tokyo Medical University Department of Mathematics Part-time lecturer

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Committee career (4)：

2026/04 - 現在足利大学学生指導委員会
2023/04 - 2026/03 足利大学工学部入試企画委員会
2021/04 - 2022/03 足利大学教育連携センター運営委員
2020/04 - 2021/03 足利大学情報科学センター委員

Association Membership(s) (1)：

THE MATHEMATICAL SOCIETY OF JAPAN

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