Kazuhiro TAKIMOTO
Mathematics Program, Division of Advanced Science and Engineering, Graduate School of Advanced Science and Engineering, Hiroshima University (School : Department of Mathematics, School of Science, Hiroshima University) 1-3-1 Kagamiyama, Higashi-Hiroshima city, Hiroshima 739-8526, JAPAN Tel : (+81) 82-424-7332 (+81) 82-424-7350 (Dept. Office) FAX : (+81) 82-424-0710 E-mail : ktakimoto@ hiroshima-u.ac.jp Office : C-603