Results 11 to 20 of about 5,203,105 (351)
Neutral Operator and Neutral Differential Equation [PDF]
Abstract and Applied Analysis, 2011 In this paper, we discuss the properties of the neutral operator (Ax)(t) = x(t) − cx(t − δ(t)), and by applying coincidence degree theory and fixed point index theory, we obtain sufficient conditions for the existence, multiplicity, and nonexistence of (positive) periodic solutions to two kinds of second‐order differential equations with the prescribed
Jingli Ren, Zhibo Cheng, Stefan Siegmund
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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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Nonexotic Neutral Gauge Bosons [PDF]
, 2002 We study theoretical and experimental constraints on electroweak theories including a new color-singlet and electrically-neutral gauge boson. We first note that the electric charges of the observed fermions imply that any such Z' boson may be described ...
A. Blondel +26 more
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Flavour Breaking Effects of Wilson twisted mass fermions [PDF]
, 2005 We study the flavour breaking effects appearing in the Wilson twisted mass formulation of lattice QCD. In this quenched study, we focus on the mass splitting between the neutral and the charged pion, determining the neutral pion mass with a stochastic ...
Jansen, K. +9 more
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New Oscillation Results For Third-Order Half-Linear Neutral Differential Equations
Mathematics, 2020 The main purpose of this paper is to obtain criteria for the oscillation of all solutions of a third-order half-linear neutral differential equation.
K. S. Vidhyaa +2 more
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Journal of Pure and Applied Microbiology, 2021 The xylanolytic and amylolytic yeasts were qualitatively determined by Cong red xylan agar and soluble starch agar plates, respectively. The most xylanase and α-amylase inducible strain (AUN-02) was selected and identified using PCR amplification of 26S ...
Hala A. Salah +8 more
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Phylogenetic clustering of fungal communities in human‐disturbed streams
Ecosphere, 2016 Phylogenetic community structure is increasingly used to examine community assembly, but the influence of anthropogenic disturbance on phylogenetic community structure remains little explored.
H. Mykrä +4 more
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Elektrotehnìka ta Elektroenergetika, 2011 Проведено аналіз існуючих пристроїв обмеження однофазних струмів короткого замикання. Розглянуто розроблений пристрій обмеження однофазного струму короткого замикання в нейтралі високовольтної обмотки автотрансформатора.
N. V. Vyshnevsky, A.N. Andriyenko
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Mathematics, 2023 In this paper, new criteria for a class oscillation of second-order delay differential equations with distributed deviating arguments were established. Our method mainly depends on making sharper estimates for the non-oscillatory solutions of the studied
Asma Al-Jaser +3 more
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Oscillation of a higher order neutral difference equation with a forcing term
International Journal of Mathematics and Mathematical Sciences, 1999 The authors obtain oscillation results for the even order forced neutral difference equation Δm(yn+pnyn−k)+qnf(yn−ℓ)=hn. (*) Examples illustrating the results are included.
E. Thandapani +3 more
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