Averaging of a boundary-value problem for a multifrequency system with deviating argument

Using the averaging method, we investigate the solvability of a boundary-value problem for a multifrequency system with deviating argument and integral boundary conditions. We obtain an estimate for the difference between solutions of the original and averaged problems. __________ Translated from Neliniini Kolyvannya, Vol. 10, No. 4, pp. 519–527, October–December, 2007.