About KATO AKISHI
About 東大 大学院数理科学研究科
About category (algebraic system)
About geometry
About Physics
About directed graph
About atom
About quantization
About theory
About string model
About stability condition
About elementary particle physics
About string theory
About Landau-Ginzburg theory
About BPS states
About Seiberg-Witten theory
About Mathematical physics
About Algebra
About Geometry
About Physics in general
About 幾何学
About 圏論
About 思考
About 物理学