Because of the attack on the computer network of the University of Duisburg-Essen, the ESAGA site currently can be reached only at Links pointing to do not work (but one could manually replace by net), and similarly for content, such as images, at such addresses contained in our pages. (Email messages to addresses are accepted by our mail servers again.)

We apologize for the inconvenience caused by these problems.

Former member at ESAGA

Email: ralf.butenuth - at -

call me, mail me or just drop in!
Ralf Butenuth

Welcome to my Homepage. I'm a Ph.D. Student at the Department of Mathematics at the University Duisburg-Essen in Essen. I started my Ph.D. in Fall 2007 under Prof. Böckle's supervision. I'm a member of the Arithmetic Geometry research group. Generally, I'm interested in the arithmetic of function fields, drinfeld modular forms and their applications. For more details, see my research page. I finished my diploma thesis in August 2007.