Research theme for competitive and other funds (4)：
2020 - 2025 On the structure of subgraphs and trees with specified properties in graphs
2015 - 2020 On the structure of subgraphs and degree bounded trees in graphs
2014 - 2016 Development of analytical system for soccer play by means of image processing and graph theory
2011 - 2015 On graph factors and spanning trees with restricted degrees
Papers (16)：
Kei Suzuki, Ryota Matsubara, Tipporn Laohakangvalvit, Midori Sugaya. Feature Comparison of Emotion Estimation by EEG and Heart Rate Variability Indices and Accuracy Evaluation by Machine Learning. Advances in Neuroergonomics and Cognitive Engineering - Proceedings of the AHFE 2021 Virtual Conferences on Neuroergonomics and Cognitive Engineering, Industrial Cognitive Ergonomics and Engineering Psychology, and Cognitive Computing and Internet of Things. 2021. 222-230
Shun-ichi Maezawa, Ryota Matsubara, Haruhide Matsuda. A Fan-type condition for graphs to be k-leaf-connected. Discret. Math. 2021. 344. 4. 112260-112260
Michitaka Furuya, Shun-Ichi Maezawa, Ryota Matsubara, Haruhide Matsuda, Shoichi Tsuchiya, Takamasa Yashima. Degree Sum Condition for the Existence of Spanning k-Trees in Star-Free Graphs. Discussiones Mathematicae Graph Theory. 2020
