Date & Time: Tuesday, January 27, 2015, 14:30-15:30.
Venue: Ramanujan Hall

Title: Precise conjectures on non-vanishing of quadratic twists of L-functions modulo a prime

Speaker: Vinayak Vatsal, University of British Columbia

Abstract: This will be a description of precise conjectures (due mostly to K. Prasanna) about the p-adic valuation of quadratic twisted L-functions at the centre of the critical strip, and an approach we propose to prove them, based on work of Wei Zhang.