Results 31 to 40 of about 1,460,019 (255)

Principal solution of half-linear differential equation: Limit and integral characterization

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2008
We investigate integral and limit characterizations of the principal solution of the nonoscillatory half-linear differential equation $$ (r(t)\Phi(x'))'+c(t)\Phi(x)=0,\quad \Phi(x)=|x|^{p-2},\ p>1 $$.
Zuzana Dosla, Ondrej Dosly
doaj   +1 more source

Non-mean-field Critical Exponent in a Mean-field Model : Dynamics versus Statistical Mechanics [PDF]

open access: yes, 2014
The mean-field theory tells that the classical critical exponent of susceptibility is the twice of that of magnetization. However, the linear response theory based on the Vlasov equation, which is naturally introduced by the mean-field nature, makes the ...
Ogawa, Shun   +2 more
core   +2 more sources

On the integral characterization of principal solutions for half-linear ODE

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2013
We discuss a new integral characterization of principal solutions for half-linear differential equations, introduced in the recent paper of S. Fisnarova and R. Marik, Nonlinear Anal. 74 (2011), 6427-6433.
M. Cecchi   +3 more
doaj   +1 more source

Diffusion approximations and domain decomposition method of linear transport equations: asymptotics and numerics [PDF]

open access: yes, 2015
In this paper we construct numerical schemes to approximate linear transport equations with slab geometry by diffusion equations. We treat both the case of pure diffusive scaling and the case where kinetic and diffusive scalings coexist.
Li, Qin, Lu, Jianfeng, Sun, Weiran
core   +2 more sources

On conjugacy of second-order half-linear differential equations on the real axis

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2016
Some conjugacy criteria are given for the equation $$ \big(|u'|^{\alpha}\operatorname{sgn}u'\big)'+p(t)|u|^{\alpha}\operatorname{sgn} u=0, $$ where $p\colon\mathbb{R} \to \mathbb{R}$ is a locally integrable function and $\alpha>0$, which generalise and ...
Jiří Šremr
doaj   +1 more source

The Forced Non-Linear Schroedinger Equation with a Potential on the Half-Line

open access: yes, 2003
In this paper we prove that the initial-boundary value problem for the forced non-linear Schroedinger equation with a potential on the half-line is locally and (under stronger conditions) globally well posed, i.e.
Adams   +18 more
core   +1 more source

On Constants in Nonoscillation Criteria for Half‐Linear Differential Equations [PDF]

open access: yesAbstract and Applied Analysis, 2011
We study the half‐linear differential equation (r(t)Φ(x′)) ′ + c(t)Φ(x) = 0, where Φ(x) = |x|p−2x, p > 1. Using the modified Riccati technique, we derive new nonoscillation criteria for this equation. The results are closely related to the classical Hille‐Nehari criteria and allow to replace the fixed constants in known nonoscillation criteria by a ...
Simona Fišnarová, Robert Mařík
openaire   +3 more sources

Oscillation Theorems for Second-Order Half-Linear Advanced Dynamic Equations on Time Scales

open access: yesInternational Journal of Differential Equations, 2011
This paper is concerned with the oscillatory behavior of the second-order half-linear advanced dynamic equation (𝑟(𝑡)(𝑥Δ(𝑡))𝛾)Δ+𝑝(𝑡)𝑥𝛾(𝑔(𝑡))=0 on an arbitrary time scale 𝕋 with sup 𝕋=∞, where 𝑔(𝑡)≥𝑡 and ∫∞𝑡𝑜(Δ𝑠/(𝑟1/𝛾(𝑠)))
Shuhong Tang   +2 more
doaj   +1 more source

Oscillation of Second Order Nonlinear Neutral Differential Equations

open access: yesMathematics, 2022
The study of the oscillatory behavior of solutions to second order nonlinear differential equations is motivated by their numerous applications in the natural sciences and engineering.
Yingzhu Wu, Yuanhong Yu, Jinsen Xiao
doaj   +1 more source

The Bohl spectrum for nonautonomous differential equations [PDF]

open access: yes, 2016
We develop the Bohl spectrum for nonautonomous linear differential equation on a half line, which is a spectral concept that lies between the Lyapunov and the Sacker--Sell spectrum.
Doan, Thai Son   +2 more
core   +2 more sources

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