Results 1 to 10 of about 6,725,901 (296)

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   +17 more sources

Nonoscillation of higher order half-linear differential equations [PDF]

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2015
We establish nonoscillation criteria for even order half-linear differential equations. The principal tool we use is the Wirtinger type inequality combined with various perturbation techniques.
Ondrej Dosly, Vojtěch Růžička
doaj   +5 more sources

Oscillation Criteria for Advanced Half-Linear Differential Equations of Second Order

open access: yesMathematics, 2023
In this paper, we find new oscillation criteria for second-order advanced functional half-linear differential equations. Our results extend and improve recent criteria for the same equations established previously by several authors and cover the ...
Taher S. Hassan   +2 more
doaj   +2 more sources

Perturbed generalized half-linear Riemann–Weber equation – further oscillation results [PDF]

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2017
We establish new oscillation and nonoscillation criteria for the perturbed generalized Riemann–Weber half-linear equation with critical coefficients \begin{equation*} (\Phi(x'))'+\left(\frac{\gamma_p}{t^p}+\sum_{j=1}^n\frac{\mu_p}{t^p\mbox{Log}_j^2 t ...
Simona Fišnarová, Zuzana Pátíková
doaj   +3 more sources

Oscillation result for half-linear delay difference equations of second-order

open access: yesMathematical Biosciences and Engineering, 2022
In this paper, we obtain the new single-condition criteria for the oscillation of second-order half-linear delay difference equation. Even in the linear case, the sharp result is new and, to our knowledge, improves all previous results.
Chinnasamy Jayakumar   +6 more
doaj   +2 more sources

Two-Parametric Conditionally Oscillatory Half-Linear Differential Equations [PDF]

open access: yesAbstract and Applied Analysis, 2011
We study perturbations of the nonoscillatory half-linear differential equation (r(t)Φ(x'))'+c(t)Φ(x)=0, Φ(x):=|x|p-2x, p>1. We find explicit formulas for the functions r̂, ĉ such that the equation [(r(t)+λr̂(t))Φ(x')]'+[c(t)+μĉ(t)]Φ(x)=0 is ...
Ondřej Došlý, Simona Fišnarová
doaj   +3 more sources

Half-linear discrete oscillation theory

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2000
Oscillatory properties of the second order half-linear difference equation $$\Delta(r_k|\Delta y_k|^{\alpha-2}\Delta y_k)+p_k|y_{k+1}|^{\alpha-2}y_{k+1}=0,$$ where $\alpha>1$, are investigated.
Pavel Řehák
doaj   +3 more sources

Oscillation of Half-Linear Differential Equations with Delay [PDF]

open access: yesAbstract and Applied Analysis, 2013
We study the half-linear delay differential equation , , We establish a new a priori bound for the nonoscillatory solution of this equation and utilize this bound to derive new oscillation criteria for this equation in terms of oscillation criteria for ...
Simona Fišnarová, Robert Mařík
doaj   +4 more sources

Modified Riccati technique for half-linear differential equations with delay [PDF]

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2014
We study the half-linear differential equation $$ (r(t)\Phi(x'(t)))'+c(t)\Phi(x(\tau(t)))=0,\quad \Phi(x):=|x|^{p-2}x,\ p>1. $$ We formulate new oscillation criteria for this equation by comparing it with a certain ordinary linear or half-linear ...
Simona Fišnarová, Robert Marik
doaj   +3 more sources

Bargmann-Type Inequality for Half-Linear Differential Operators

open access: yesJournal of Inequalities and Applications, 2009
We consider the perturbed half-linear Euler differential equation , , , with the subcritical coefficient . We establish a Bargmann-type necessary condition for the existence of a nontrivial solution of this equation with at least zero points in .
Došlý Ondřej   +1 more
doaj   +4 more sources

Home - About - Disclaimer - Privacy