About TACHIKAWA ATSUSHI
About 東京理大 理工
About variational principle
About variational method
About functional
About shortest route problem
About formulation
About Euler equation
About Lagrange equation
About curved surface
About regularity
About 変分問題
About 石鹸膜
About direct method
About Mathematical physics
About 代数学
About 解析
About 変分原理
About 変分法
About 変分問題