Formalization of the Data Encryption Standard
Okazaki, Hiroyuki, Shidama, Yasunari
Embedded Lattice and Properties of Gram Matrix
Futa, Yuichi, Shidama, Yasunari
Convex Sets and Convex Combinations on Complex Linear Spaces
Matsuzaki, Hidenori, Endou, Noboru, Shidama, Yasunari