2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/134126The variant of calculation of functions of set and their application is offered. In particular: the new measure of system of sets generalizing classical concept of a measure is entered; the variation of set that has allowed to construct a derivative of function of set on a measure is entered, and to receive necessary conditions of optimization in terms of function of set.12 pagesFunctional Analysis49K27; 93C25; 93C95text