The IMU server runs under responsibility of the International Mathematical Union (IMU).
Please send suggestions and corrections to IMU Secretary
Helge Holden, Secretary
International Mathematical Union
D-10117 Berlin, Germany
Fax: +49 30 20372439
Please send technical suggestions and corrections to
This server is hosted by WIAS Berlin, Germany.
Although we carefully revise all texts we assume no liability for the contents of external links for which solely the external provider is responsible.