Development of a simulation program for estimating hospital incomes under the prospective payment system. - Toshikazu Abe; Shin-ichi Toyabe; Pengyu Cao; Sachiko Kurashima; Kouhei Akazawa (Comput. Methods Programs Biomed., 2005)

On a characterization of commutativity for C*-algebras via gyrogroup operations. - Toshikazu Abe; Osamu Hatori (Period. Math. Hung., 2016)