Compactness in Metric Spaces
Nakasho, Kazuhisa, Narita, Keiko, Shidama, Yasunari
Differential Equations on Functions from R into Real Banach Space
Narita, Keiko, Endou, Noboru, Shidama, Yasunari
Isomorphism Theorem on Vector Spaces over a Ring
Futa, Yuichi, Shidama, Yasunari