Fouvry, EtienneKowalski, EmmanuelMichel, Philippe2015-05-292015-05-292015-05-29201510.1098/rsta.2014.0309https://infoscience.epfl.ch/handle/20.500.14299/114243WOS:000351681200003We 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.trace functionsmonodromyl-adic sheavesRiemann hypothesis over finite fieldsexponential sumsA study in sums of productstext::journal::journal article::research article