Kogakuin University · Institute for the Promotion of Education · 教授

Research keywordsCAT(0)空間・距離空間・幾何学的群論・リーマン幾何

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• The Andoni–Naor–Neiman inequalities and isometric embeddability into a CAT(0) space2026
• Inequalities on Six Points in a CAT (0) Space2025
• A non-geodesic analogue of Reshetnyak’s majorization theorem2023
• An Intrinsic Characterization of Five Points in a CAT(0) Space2020

• ポアンカレ不等式と距離空間の幾何学
• 非正曲率距離空間への埋め込み可能性
• 非測地的距離空間の非正曲率性について

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