Results 41 to 50 of about 1,458,239 (269)

A precise asymptotic description of half‐linear differential equations

open access: yesMathematische Nachrichten, 2023
AbstractWe study asymptotic behavior of solutions of nonoscillatory second‐order half‐linear differential equations. We give (in some sense optimal) conditions that guarantee generalized regular variation of all solutions, where no sign condition on the potential is assumed.
openaire   +2 more sources

Oscillation of second order half-linear difference equations (I)

open access: yesApplied Mathematical Sciences, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Jiang, Jianchu, Tang, Xianhua
openaire   +2 more sources

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

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

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

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

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

Quantum-mechanical effects in a linear time-dependent potential

open access: yes, 2009
The solution of the time-dependent Schr\"odinger equation is discussed for a particle confined in half-space $x>0$ with a linear potential $V(x)=Kx$ in the following situations: (a) sudden removal of the wall and switching on the linear potential $V(x ...
Mousavi, S. V.
core   +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

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