TY - GEN ID - acta82280 UR - http://acta.bibl.u-szeged.hu/82280/ EP - 10 CY - Szeged SN - 1417-3875 TI - New monotonicity properties and oscillation of n-order functional differential equations with deviating argument KW - Differenciálegyenlet AV - public Y1 - 2023/// A1 - Baculíková Blanka N1 - Bibliogr.: p. 9-10. ; összefoglalás angol nyelven N2 - In this paper, we offer new technique for investigation of the even order linear differential equations of the form y (n) (t) = p(t)y(?(t)). (E) We establish new criteria for bounded and unbounded oscillation of (E) which improve a number of related ones in the literature. Our approach essentially involves establishing stronger monotonicities for the positive solutions of (E) than those presented in known works. We illustrate the improvement over known results by applying and comparing our technique with the other known methods on the particular examples. ER -