Zeta-functions of groups and rings

Seminar: 
Group Actions and Dynamics
Event time: 
Monday, February 19, 2007 - 11:30am to Sunday, February 18, 2007 - 7:00pm
Location: 
431 DL
Speaker: 
Fritz Grunewald
Speaker affiliation: 
Heinrich-Hein-Universität Düsselforf
Event description: 

The Zeta-function of a group or a ring is the Dirichlet-series
with coefficients equal to the numbers of subgroups or ideals of a fixed
index. I shall report on recent progress about the analytical properties of
these functions.