The Basic Existence Theorem of Riemann-Stieltjes Integral
Nakasho, Kazuhisa, Narita, Keiko, Shidama, Yasunari
Compactness in Metric Spaces
Nakasho, Kazuhisa, Narita, Keiko, Shidama, Yasunari
The Orthogonal Projection and the Riesz Representation Theorem
Narita, Keiko, Endou, Noboru, Shidama, Yasunari