Seikei University · Faculty of Science and Engineering · 助教

Research keywordsグラフ理論・Graph Theory

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• On essential independent sets in graphs Jun Fujisawa, Akira Saito, Masao Tsugaki, Tomoki Yamashita, Takamasa Yashima Discrete Applied Mathematics 385 222-227 2026年5月2026 · 論文
• Sufficient conditions for edge-colored bipartite graphs to have rainbow and properly colored spanning trees Shinya Fujita, Mikio Kano, Shun-ichi Maezawa, Masao Tsugaki, Kiyoshi Yoshimoto Discrete Mathematics 349(4) 114921-114921 2026年4月2026 · 論文
• Degree conditions of two vertices with distance two or three for the existence of a Hamilton cycle passing through a matching in a bipartite graph Shuya Chiba, Masao Tsugaki, Tomoki Yamashita, Takamasa Yashima Graphs and Combinatorics 41(6) 2025年10月18日2025 · 論文
• A spanning tree with at most k leaves in a K1,5-free graph Pei Sun, Yuan Chen, Masahiro Kimura, Kenta Ozeki, Masao Tsugaki Discrete Mathematics 348(6) 114411-114411 2025年6月 査読有り2025 · 論文

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