This is Shigehiro Sakata's page

E-mail: sakata *at sign* hosei.ac.jp

 sakata *at sign* miyazaki-u.ac.jp is still active.

Affiliation: Koganei Liberal Arts Center, Division of Mathematics, Hosei University

Address: 3-7-2 Kajino, Koganei, Tokyo, Japan

Postal code: 184-8584