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# Texas A&M Number Theory Seminar

##
Department of Mathematics

Milner 216

Wednesdays, 1:45-2:45 PM

### Riad Masri

CRM-Montreal/McGill University

#### Friday, March 21

#### Milner 216, 2:00PM

**Title:**Average values of Hecke L-functions via Galois suborbits of
Heegner points

**Abstract:**
The 'canonical' Hecke characters are an interesting class of
algebraic
Hecke characters which arise in connection with
Benedict Gross's theory of elliptic Q-curves. In this talk I will show
how the equidistribution of Galois suborbits of Heegner points on modular
curves can be used to obtain an asymptotic formula for the average central
L-value of these characters. I will then show how this formula can be
combined
with subconvexity bounds of Duke-Friedlander-Iwaniec
to obtain quantitative nonvanishing theorems. This is joint work with
Tonghai
Yang.