Affiliation: Graduate School of Science, Chiba University
Phone: +81-43-251-1111
Fax:
E-mail: koshitan AT math DOT s DOT chiba-u DOT ac DOT jp
Office: 4th Floor, Faculty of Science Bldg 4
Postal Address: Graduate School of Science, Chiba University
1-33 Yayoi-cho, Inage-ku, Chiba, 263-8522, Japan
Dept. Mathematics and Informatics,
Faculty of Science, Chiba Univ.