Research keywords (3)：
代数的組合せ論
, 表現論
, アソシエーション・スキーム
Research theme for competitive and other funds (4)：
2021 - 2025 世界探究パラダイムに基づいた新しい教師教育の展開
2020 - 2024 Research on regular association schemes
2018 - 2022 理論枠組みに基づいた数学と数学教育学の融合による授業開発と教師教育
2017 - 2021 正則アソシエーション・スキームの表現の研究
Papers (16)：
Akihide Hanaki, Masayoshi Yoshikawa. Terwilliger algebras and some related algebras defined by finite connected simple graphs. Discrete Mathematics. 2023. 346. 9. Article 113509 (12 pages)
Masayoshi Yoshikawa. On the Brauer-Wielandt-Harada theorem for group-like regular association schemes. Discrete Mathematics. 2022. 345. 6. Article 112822 (6 pages)
Akihide Hanaki, Masayoshi Yoshikawa. A construction of pairs of non-commutative rank 8 association schemes from non-symmetric rank 3 association schemes. Algebraic Combinatorics. 2021. 4. 3. 533-540
Masayoshi Yoshikawa. On closed subsets generated by a regular relation of an association scheme. Discrete Mathematics. 2020. 343. 3. Article 111706 (6 pages)
In Search of Graduate Studies Bridging Between Mathematics and Mathematics Education : Our Activities in Hyogo University of Teacher Education. 2018. 53. 65-72
Lectures and oral presentations (31)：
On new proper Jordan schemes related to quaternion and octonion algebras
(RIMS共同研究(公開型)有限群論,代数的組合せ論,頂点代数の研究(京都大学) 2024)
String art as teaching material for set theoretical treatment
(The 15th International Congress on Mathematical Education (International Convention Centre in Sydney, Australia) 2024)
Raison d'être of mathematical works and epistemological responsibility in inquiry: the case of the Fibonacci sequence under various moduli
(INDRUM 2024 (Fifth conference of the International Network for Didactic Research in University Mathematics) (Universitat Autònoma de Barcelona, Spain) 2024)
