On averaging systems with fast and slow variables on an infinite interval
The author generalizes the fundamental averaging theorem obtained by \textit{M.~M.~Khapaev} and \textit{O.~P.~Filatov} [Differ. Uravn. 19, No. 9, 1640-1643 (1983; Zbl 0539.34033)] for systems of differential equations with fast and slow variables on a finite interval to the case of an infinite interval.
differential equation with small parameter
scientific article; zbMATH DE number 1439059