Results 31 to 40 of about 6,618,367 (274)

Local estimates for modified Riccati equation in theory of half-linear differential equation

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2012
In this paper we study the half-linear differential equation \begin{equation*} \bigl(r(t)\Phi_p(x')\bigr)'+c(t)\Phi_p(x)=0, \end{equation*} where $\Phi_p(x)=|x|^{p-2}x$, $p>1$. Using modified Riccati technique and suitable local estimates for terms
Simona Fišnarová, Robert Marik
doaj   +1 more source

An oscillatory half-linear differential equation [PDF]

open access: yes, 1997
summary:A second-order half-linear ordinary differential equation of the type $$(|y^{\prime}|^{\alpha-1}y^{\prime})^{\prime}+\alpha q(t)|y|^{\alpha-1}y=0 \leqno{{\rm (1)}}$$ is considered on an unbounded interval.
Tanigawa, Tomoyuki   +2 more
core   +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

Analysis and numerical solution of a non-standard non-linear integro-differential boundary value problem [PDF]

open access: yes, 2011
The aim of this thesis is the analytical study and the development of a numerical method to solve a non-linear, integro-differential boundary value problem on the half line which is representative of a class of non-standard integral equations where the ...
Basile, Mariateresa
core   +1 more source

Oscillation and nonoscillation of second-order half-linear differential equations [PDF]

open access: yesJournal of Mathematical Sciences, 2013
The paper considers the problem of oscillation and non-oscillation of the second order half-linear differential equation \[ ({|{u'(t)}|}^{\alpha-1}u'(t))'+p(t){|{u'(t)}|}^{\alpha-1}u(t)=0, \] where \(\alpha>0\) is a constant and \(p\in C([0,+\infty),[0,+\infty))\) is an integrable function.
Yong Zhou, Chen, X.W.
openaire   +3 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

Global extrapolation procedures for linear partial differential equations [PDF]

open access: yes, 1987
Global extrapolation procedures, in space and time are considered for the numerical Solution of linear partial differential equations. Global extrapolation procedures in time only are reviewed.
Twizell, E H
core   +6 more sources

New Criteria for Sharp Oscillation of Second-Order Neutral Delay Differential Equations

open access: yesMathematics, 2021
In this paper, new oscillation criteria for second-order half-linear neutral delay differential equations are established, using a recently developed method of iteratively improved monotonicity properties of a nonoscillatory solution. Our approach allows
Irena Jadlovská
doaj   +1 more source

Oscillation criteria for neutral half-linear differential equations without commutativity in deviating arguments

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2016
We study the half-linear neutral differential equation \begin{equation*} \Bigl[r(t)\Phi(z'(t))\Bigr]'+c(t)\Phi(x(\sigma(t)))=0, \qquad z(t)=x(t)+b(t)x(\tau(t)), \end{equation*} where $\Phi(t)=|t|^{p-2}t$.
Simona Fišnarová
doaj   +1 more source

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