Speaker: Prof. Chandan Singh Dalawat HRI, Allahabad
Date: 19 January 2011
Time: 4:00-5:00 p.m.
Venue: Lecture Hall I, Department of Mathematics
Serre’s mass formula counts the number of totally ramified degree-$n$ extensions $E$ of a local field $F$, each extension being assigned some weight depending upon how ramified it is. We will present an elementary proof of this formula when the degree $n$ is prime.The background material will be covered, so that the talk should be accessible to a broad mathematical audience.