%0 Journal Article
%T A study in sums of products
%A иж. Fouvry
%A E. Kowalski
%A Ph. Michel
%J Mathematics
%D 2014
%I arXiv
%R 10.1098/rsta.2014.0309
%X We give a general version of cancellation in exponential sums that arise as sums of products of trace functions satisfying a suitable independence condition related to the Goursat-Kolchin-Ribet criterion, in a form that is easily applicable in analytic number theory.
%U http://arxiv.org/abs/1405.2293v2