About KADOWAKI Satoru
About Matsue Coll. of Technol., Matsue, JPN
About KAGEYAMA Sanpei
About Tokyo Univ. Sci., Tokyo, JPN
About Hiroshima Mathematical Journal
About combinatorial analysis
About matrix(mathematics)
About existence
About block design
About Hadamard matrix
About difference
About Mathematics in general
About 分解
About 設計
About 差分
About スキーム