The Measurability of Complex-Valued Functional Sequences
Narita, Keiko, Endou, Noboru, Shidama, Yasunari
Gaussian Integers
Futa, Yuichi, Okazaki, Hiroyuki, Mizushima, Daichi, Shidama, Yasunari
Open Mapping Theorem
Sakurai, Hideki, Kunimune, Hisayoshi, Shidama, Yasunari