The Orthogonal Projection and the Riesz Representation Theorem
Narita, Keiko, Endou, Noboru, Shidama, Yasunari
Higher Order Partial Differentiable Functions
Nakasho, Kazuhisa, Shidama, Yasunari
Riemann Indefinite Integral of Functions of Real Variable
Shidama, Yasunari, Endou, Noboru, Wasaki, Katsumi