Name: Norihisa Ikoma (生駒　典久)

Position: Associate Professor

Address: Department of Mathematics, Faculty of Science and Technology, Keio University,

Yagami Campus: 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 2238522, JAPAN

Office: Room 14-741, Building Number 14 (創想館)

Email: ikoma(+++)math.keio.ac.jp (Please replace (+++) by @)