Results 21 to 30 of about 735,542 (308)

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   +4 more sources

De la Vallée Poussin type inequality and eigenvalue problem for generalized half-linear differential equation [PDF]

open access: diamond, 2014
We study the generalized half-linear second order differential equation via the associated Riccati type differential equation and Prufer transformation.
Libor Báňa, O. Doslý
semanticscholar   +2 more sources

Sharp oscillation criteria for fourth order sub-half-linear and super-half-linear differential equations [PDF]

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2008
This paper is concerned with the oscillatory behavior of the fourth-order nonlinear differential equation $$ \bigl(p(t)|x^{\prime\prime}|^{\alpha-1}\,x^{\prime\prime}\bigr)^{\prime\prime} +q(t)|x|^{\beta-1}x=0\,,\tag{E} $$ where $\alpha>0$, $\beta>0$ are
Jelena Manojlović, J. Milosevic
doaj   +4 more sources

Nonoscillatory solutions of planar half-linear differential systems: a Riccati equation approach

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2018
In this paper an attempt is made to depict a clear picture of the overall structure of nonoscillatory solutions of the first order half-linear differential system \begin{equation*} x'-p(t)\varphi_{1/\alpha}(y)=0,\qquad y'+q(t)\varphi_{\alpha}(x)=0, \tag{
Jaroslav Jaroš   +2 more
doaj   +2 more sources

Critical Oscillation Constant for Euler Type Half-Linear Differential Equation Having Multi-Different Periodic Coefficients

open access: yesInternational Journal of Differential Equations, 2017
We compute explicitly the oscillation constant for Euler type half-linear second-order differential equation having multi-different periodic coefficients.
Adil Misir, Banu Mermerkaya
doaj   +2 more sources

Ordinary differential equations in the oscillation theory of partial half-linear differential equation

open access: yesJournal of Mathematical Analysis and Applications, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
R. Mařík
openaire   +3 more sources

Perturbations of Half-Linear Euler Differential Equation and Transformations of Modified Riccati Equation

open access: yesAbstract and Applied Analysis, 2012
We investigate transformations of the modified Riccati differential equation and the obtained results we apply in the investigation of oscillatory properties of perturbed half-linear Euler differential equation.
Ondřej Došlý, Hana Funková
doaj   +3 more sources

Hille–Nehari type criteria and conditionally oscillatory half-linear differential equations

open access: diamondElectronic Journal of Qualitative Theory of Differential Equations, 2019
We study perturbations of the generalized conditionally oscillatory half-linear equation of the Riemann–Weber type. We formulate new oscillation and nonoscillation criteria for this equation and find a perturbation such that the perturbed Riemann– Weber ...
Simona Fisnarová, Z. Pátíková
semanticscholar   +2 more sources

Oscillation criteria for second order half-linear differential equations with delay [PDF]

open access: diamondThe University Thought: Publication in Natural Sciences, 2019
The oscillation criteria of different types of differential equations are often the topic of numerous scientific papers, because their application in nuclear physics, fluid mechanics, relativistic mechanics, the study of chemical reactions in the system ...
Radica Bojičić, T. Jovanović
semanticscholar   +2 more sources

Variational method and conjugacy criteria for half-linear differential equations [PDF]

open access: diamondArchivum Mathematicum, 2013
The authors analyse the conjugacy of the second order half-linear differential equation \[ -[r(t)\Phi (x')]'+c(t)\Phi (x) = 0, \quad \Phi (x) = |x|^{p-1} \operatorname {sgn}\,x, p>1 \] in the interval \([-a,a], a\in \mathbb {R}\) (\(r,c\) being continuous functions and \(r(t)>0\) for \(t \in [-a,a]\)).
Chvátal, Martin, Došlý, Ondřej
openaire   +3 more sources

Home - About - Disclaimer - Privacy