Blomer, ValentinValentinBlomer2017-09-072017-09-072011https://resolver.sub.uni-goettingen.de/purl?gro-2/3725Let K=ℚ(-D) be an imaginary quadratic field, and denote by h its class number. It is shown that there is an absolute constant c>0 such that for sufficiently large D at least c·h∏ p∣D (1-p -1 ) of the h distinct L-functions L K (s,χ) do not vanish at the central point s=1/2.enNon-vanishing of class group ehBfunctions at the central pointNon-annulation des fonctions L de groupes de classes au point centraljournal_article10.5802/aif.20353145983