Abstract:New oscillation criteria for the second-order Emden-Fowler delay differential equation with a sublinear neutral term are presented. An essential feature of our results is that oscillation of the studied equation is ensured via only one condition. Furthermore, as opposed to the results by Agarwal et al. criteria can be applied to Emden-Fowler delay differential equations with noncanonical operators and a sublinear neutral term. Our results essentially improve, extend, and simplify some known ones reported in th… Show more
“…Two examples are given to illustrate the efficiency of our results. We believe that the proof method and the obtained results may be generalized to the differential equations, such as those in [11,13,18].…”
In this paper, we present several new oscillation criteria for a second order nonlinear differential equation with mixed neutral terms of the form (r(t)(z (t)) α) + q(t)x β (σ (t)) = 0, t ≥ t 0 , where z(t) = x(t) + p 1 (t)x(τ (t)) + p 2 (t)x(λ(t)) and α, β are ratios of two positive odd integers. Our results improve and complement some well-known results which were published recently in the literature. Two examples are given to illustrate the efficiency of our results.
“…Two examples are given to illustrate the efficiency of our results. We believe that the proof method and the obtained results may be generalized to the differential equations, such as those in [11,13,18].…”
In this paper, we present several new oscillation criteria for a second order nonlinear differential equation with mixed neutral terms of the form (r(t)(z (t)) α) + q(t)x β (σ (t)) = 0, t ≥ t 0 , where z(t) = x(t) + p 1 (t)x(τ (t)) + p 2 (t)x(λ(t)) and α, β are ratios of two positive odd integers. Our results improve and complement some well-known results which were published recently in the literature. Two examples are given to illustrate the efficiency of our results.
“…Furthermore, we choose H(t, s) = (ts) 2 , k = 2, θ = 2, p = 1 2 , q(t, ζ ) = tζ , φ(t) = t, t 0 = 1. By Theorem 3.1, we obtain h(t, s) = 2, ρ(t) = t 2 -1, q(t) = 3 8 t, P(t) = 3 8 t(t 2 -1)e t and lim sup…”
Section: Examplesmentioning
confidence: 88%
“…Differential equations arise in modeling situations to describe population growth, biology, economics, chemical reactions, neural networks, and so forth; see, e.g., [2][3][4][5][6][7][8]. In the present paper, we investigate the oscillatory behavior of a third-order neutral differential equation with damping and distributed delay.…”
The present paper focuses on the oscillation of the third-order nonlinear neutral differential equations with damping and distributed delay. The oscillation of the third-order damped equations is often discussed by reducing the equations to the second-order ones. However, by applying the Riccati transformation and the integral averaging technique, we give an analytical method for the estimation of Riccati dynamic inequality to establish several oscillation criteria for the discussed equation, which show that any solution either oscillates or converges to zero. The results make significant improvement and extend the earlier works such as (Zhang et al. in Appl. Math. Lett. 25:1514-1519 2012). Finally, some examples are given to demonstrate the effectiveness of the obtained oscillation results.
“…This research focused on developing and improving the oscillation criteria for differential equations. References [3][4][5][6][7][8][9] improved the oscillation criteria for noncanonical second-order equations with delay and advanced argument. For canonical second-order delay equations, Refs.…”
The aim of this work is to improve the oscillation results for second-order neutral differential equations with damping term. We consider the noncanonical case which always leads to two independent conditions for oscillation. We are working to improve related results by simplifying the conditions, based on taking a different approach that leads to one condition. Moreover, we obtain different forms of conditions to expand the application area. An example is also given to demonstrate the applicability and strength of the obtained conditions over known ones.
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