Formalization of the Data Encryption Standard
Okazaki, Hiroyuki, Shidama, Yasunari
Equivalent Expressions of Direct Sum Decomposition of Groups1
Nakasho, Kazuhisa, Okazaki, Hiroyuki, Yamazaki, Hiroshi, Shidama, Yasunari
The Orthogonal Projection and the Riesz Representation Theorem
Narita, Keiko, Endou, Noboru, Shidama, Yasunari