| Autors: Donev, V. I. Title: Existence of an oscillating behavior in the dynamics of populations modeled by delay differential equations with impulses Keywords: neutral delay, impulsive differential equations Abstract: This paper is dealing with second order neutral delay impulsive differential equations with constant coefficients. Characteristic equations of such equations are established and conditions about the existence of nonoscillatory and oscillatory solutions of appropriate form of pulsatile exponent are obtained References Issue
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