About KATO AKISHI
About 東大 大学院数理科学研究科
About dimension
About diversity
About vector space
About linear algebra
About coordinate system
About Abelian group
About Physics
About ring (mathematics)
About curved space-time
About additive group
About 無次元化
About Mathematical physics
About 次元
About 作法
About 数学
About 多様性
About 物理学