Fields algebraic geometry Institutions Kyoto University Gunma University Doctoral advisor Masazo Sono Doctoral students Satoshi Suzuki Hideyuki Matsumura...

77 3 "The Nijimura Brothers, Part 1" Transliteration: "Nijimura Kyōdai, Sono 1" (Japanese: 虹村兄弟 その１) Takahiko Yoshida Takahiko Yoshida Yasuko Kobayashi...

but it was not connected with the existing work on concrete systems. Masazo Sono's 1917 definition was the first equivalent to the present one. In 1920...