Results 51 to 60 of about 337,037 (167)

Periodic solutions of a neutral impulsive differential equation

open access: yes上海师范大学学报. 自然科学版, 2017
In this paper, we consider a neutral impulsive differential equation. An impulsive predatorprey model with non-monotonic functional response is investigated. Some novel sufficient conditions are obtained for the nonexistence of periodic solutions and the
Hu Mi, Xia Yonghui
doaj   +1 more source

Attractivity for neutral functional differential equations

open access: yesDiscrete and Continuous Dynamical Systems - B, 2013
We study the long term dynamics of non-autonomous functional di fferential equations. Namely, we establish existence results on pullback attractors for non-linear neutral functional di erential equations with time varying delays. The two main results di er in smoothness properties of delay functions.
Caraballo Garrido, Tomás, Kiss, Gábor
openaire   +3 more sources

Neutral stochastic partial functional integro-differential equations driven by G-Brownian motion

open access: yesElectronic Journal of Differential Equations, 2019
In this article, we define the Hilbert-valued stochastic calculus with respect to G-Brownian motion in G-framework. On that basis, we prove the existence and uniqueness of mild solution for a class of neutral stochastic partial functional integro ...
Bingjun Wang, Hongjun Gao
doaj  

Oscillation and Nonoscillation for Neutral Differential Equations

open access: yesJournal of Mathematical Analysis and Applications, 1993
A class of neutral differential equations is investigated. The existence of nonoscillatory positive solutions is proved. Sufficient conditions for the existence of oscillatory solutions of this problem are given.
Zhang, B.G., Yu, J.S.
openaire   +2 more sources

Convergence and Divergence of the Solutions of a Neutral Difference Equation [PDF]

open access: yesJournal of Applied Mathematics, 2011
We investigate the asymptotic behavior of the solutions of a neutral type difference equation of the form Δ[x(n) + cx(τ(n))] + p(n)x(σ(n)) = 0, where τ(n) is a general retarded argument, σ(n) is a general deviated argument (retarded or advanced), c ∈ ℝ, (p(n)) n≥0 is a sequence of positive real numbers such that p(n) ≥ p, p ∈ ℝ+, and Δ denotes the ...
Chatzarakis, G. E., Miliaras, G. N.
openaire   +3 more sources

Approximation scheme of higher accuracy of differential equations of neutral type

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2013
The properties of solution of initial problem for differential-dierence equation of neutral type were researched. An approximate estimate of element delay was specied by scheme ofhigher accuracy.
S. A. Pernay, I. M. Cherevko
doaj   +1 more source

Structure of the Majorana’s equation and its physical interpretation [PDF]

open access: yesEPJ Web of Conferences, 2019
It is generally believed that Majorana’s paper [4] describes particles which have no antiparticles. A thorough analysis have shown that this paper gives rise to the questions the answers to which have not been realized up to now. By the Majorana equation
Kosmachev O.S.
doaj   +1 more source

Existence of solutions for quasilinear random impulsive neutral differential evolution equation

open access: yesArab Journal of Mathematical Sciences, 2018
This paper deals with the existence of solutions for quasilinear random impulsive neutral functional differential evolution equation in Banach spaces and the results are derived by using the analytic semigroup theory, fractional powers of operators and ...
B. Radhakrishnan, M. Tamilarasi
doaj   +1 more source

Bifurcation Analysis in a Two-Dimensional Neutral Differential Equation

open access: yesAbstract and Applied Analysis, 2013
The dynamics of a 2-dimensional neural network model in neutral form are investigated. We prove that a sequence of Hopf bifurcations occurs at the origin as the delay increases.
Ming Liu, Xiaofeng Xu
doaj   +1 more source

Assessment of fluid neutral models for a detached ITER case

open access: yesNuclear Materials and Energy, 2017
We compare the plasma sources (particle, parallel momentum and ion energy) due to plasma-neutral interactions computed with different fluid neutral models with the sources from a Monte Carlo simulation of the kinetic neutral equation.
N. Horsten   +3 more
doaj   +1 more source

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