Results 1 to 10 of about 5,162,966 (295)
Robust finite-time stability of uncertain neutral nonhomogeneous fractional-order systems with time-varying delays [PDF]
Theoretical and Applied Mechanics, 2020 This article addresses the problem of finite-time stability for uncertain neutral nonhomogeneous fractional-order systems with time-varying delays where a stability test procedure is suggested.
Lazarević Mihailo P. +3 more
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Entropy, 2022 In this paper, we study two types of second-order nonlinear differential equations with variable coefficients and mixed delays. Based on Krasnoselskii’s fixed point theorem, the existence results of positive periodic solution are established.
Zejian Dai, Bo Du
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Noncanonical Neutral DDEs of Second-Order: New Sufficient Conditions for Oscillation
Mathematics, 2021 In this paper, new oscillation conditions for the 2nd-order noncanonical neutral differential equation (a0t((ut+a1tug0t)′)β)′+a2tuβg1t=0, where t≥t0, are established.
Awatif A. Hindi +4 more
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Oscillation Theory for Non-Linear Neutral Delay Differential Equations of Third Order
Applied Sciences, 2020 In this article, we study a class of non-linear neutral delay differential equations of third order. We first prove criteria for non-existence of non-Kneser solutions, and criteria for non-existence of Kneser solutions.
Osama Moaaz +3 more
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Mathematics, 2021 In continuous applications in electrodynamics, neural networks, quantum mechanics, electromagnetism, and the field of time symmetric, fluid dynamics, neutral differential equations appear when modeling many problems and phenomena.
Shyam Sundar Santra +2 more
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Optimization Analysis of Electric Field Shielding in Multi-Target Areas Using Transmission Lines Based on AHP-Improved PSO [PDF]
Journal of Electromagnetic Engineering and ScienceTo address the optimization problem of electric field intensity in multi-target areas under transmission lines, this work suggests combining the enhanced improved particle swarm optimization (IPSO) with the analytical hierarchy process (AHP).
Haiyang Zhang +7 more
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On the existence of positive periodic solutions for totally nonlinear neutral differential equations of the second-order with functional delay [PDF]
Opuscula Mathematica, 2014 We prove that the totally nonlinear second-order neutral differential equation \[\frac{d^2}{dt^2}x(t)+p(t)\frac{d}{dt}x(t)+q(t)h(x(t))\] \[=\frac{d}{dt}c(t,x(t-\tau(t)))+f(t,\rho(x(t)),g(x(t-\tau(t))))\] has positive periodic solutions by employing the ...
Emmanuel K. Essel, Ernest Yankson
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Acta Botânica Brasílica, 2018 Tropical forests with high species diversity are commonly found in rugged montane areas. We investigated causes of local tropical forest tree community assembly on a continental island with heterogeneous terrain.
Felipe Cito Nettesheim +3 more
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Robust finite-time stability of neutral fractional time-delay systems
上海师范大学学报. 自然科学版, 2020 This paper is devoted to investigating the robust finite-time stability issue of neutral fractionalorder system. Based on the generalized Bellman-Gronwall inequality, a new sufficient condition is established for the particular class of neutral ...
ZHANG Li, GAO Cunchen, REN Qifeng
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Materials Research Letters, 2019 Electrocatalysis using renewable energy sources provides a clean technology to produce hydrogen from water. Titanium oxide is considered as a potential electrocatalyst not only for hydrogen production but also for CO2 conversion.
Kaveh Edalati +7 more
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