Number Theory Seminar

Tuesday 14 November 2006, MR13, 2:30pm

Eisenstein cohomology and congruences
Tobias Berger (Cambridge)


     We provide an overview of results using Eisenstein cohomology to construct elements in Selmer groups. Further we report on joint work in progress with G. Harder on bounding the denominator of Eisenstein cohomology classes for GSp_4 and explain its application to establishing congruences between elliptic and Siegel modular forms.

Last modified on 2/11/06.

Comments/corrections to Tim Dokchitser