Department of Mathematics

Indian Institute of Science

Bangalore 560 012

 

SEMINAR

 

Speaker

:

 Prof. Chandan Singh Dalawat 
Affiliation : HRI, Allahabad

Subject Area

:

Mathematics

 

Venue

:

Lecture Hall - I, Dept. of Mathematics

 

Time

:

4.00-5.00 p.m.

 

Date  

:

January19, 2011 (Wednesday)

Title

:

"Serre's mass formula in prime degree"
Abstract

:

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.