Results 31 to 40 of about 5,648,332 (271)

Asymptotic behaviour at infinity of solutions of second kind integral equations on unbounded regions of Rn [PDF]

open access: yes, 1994
We consider second kind integral equations of the form x(s) - (abbreviated x - K x = y ), in which Ω is some unbounded subset of Rn. Let Xp denote the weighted space of functions x continuous on Ω and satisfying x (s) = O(|s|-p ),s → ∞We show that if the
Peplow, AT, Chandler-Wilde, SN
core   +6 more sources

Conjugacy and principal solution of generalized half-linear second order differential equations

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2012
We study the generalized half-linear second order differential equation and the associated Riccati type differential equation. We introduce the concepts of minimal and principal solutions of these equations and using these concepts we prove a new ...
Ondrej Dosly, J. Reznickova
doaj   +1 more source

Leza Mesiah, Half the Sky, 1980-1986

open access: yes, 1984
December 1984, Volume II, Number 12 edition of a Newsletter for Half the Sky Newsletter.
Half the Sky
core   +6 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

Modified Riccati technique for half-linear differential equations with delay

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   +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

Oscillation criteria for fourth order half-linear differential equations [PDF]

open access: yesArchivum Mathematicum, 2020
In this paper, the following fourth-order differential equation \[(|y^{\prime\prime}|^{\alpha}\operatorname{sgn}(y^{\prime\prime}))^{\prime\prime}+q(t)|y|^{\alpha}\operatorname{sgn}(y)=0,\quad t\geq a>0\] is considered, where \(\alpha\) is a positive constant and \(q:[a,\infty)\to(0,\infty)\) is a continuous function.
Jaroš, Jaroslav   +2 more
openaire   +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

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

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