Results 31 to 40 of about 1,801,571 (229)

On the oscillation of certain third-order difference equations

open access: yesAdvances in Difference Equations, 2005
We establish some new criteria for the oscillation of third-order difference equations of the form Delta((1/a(2)(n))(Delta(1/a(1)(n))(Delta x(n))(alpha 1))(alpha 2)) + delta q(n)f(x[g(n)]) = 0, where Delta is the forward difference operator defined by Delta x(n) = x(n+1)-x(n).
Agarwal, Ravi P   +2 more
openaire   +4 more sources

Disconjugacy for a third order linear difference equation

open access: yesComputers & Mathematics with Applications, 1994
The third order linear difference equation (1) \(\Delta^ 3 y(t-1) + p(t) \Delta y(t) + q(t)y(t) = 0\) \((t \in \{a + 1, \dots, b + 1\})\) is considered. A function \(y : \{a, \dots, b + 3\} \to \mathbb{R}\) is said to have a generalized zero at \(a\) if \(y(a) = 0\) and it is said to have a generalized zero at \(t_ 0 > a\) provided either \(y(t_ 0) = 0\
Allan Peterson, Johnny Henderson
openaire   +2 more sources

Some representations of the general solution to a difference equation of additive type

open access: yesAdvances in Difference Equations, 2019
The general solution to the difference equation xn+1=axnxn−1xn−2+bxn−1xn−2+cxn−2+dxnxn−1xn−2,n∈N0, $$x_{n+1}=\frac {ax_{n}x_{n-1}x_{n-2}+bx_{n-1}x_{n-2}+cx_{n-2}+d}{x_{n}x_{n-1}x_{n-2}},\quad n\in\mathbb{N}_{0}, $$ where a,b,c∈C $a, b, c\in\mathbb{C}$, d∈
Stevo Stević
doaj   +1 more source

On a Third Order Rational Systems of Difference Equations [PDF]

open access: yesAnnals of the Alexandru Ioan Cuza University - Mathematics, 2014
Abstract In this paper we investigate the form of the solutions of the following systems of difference equations of order three with a nonzero real numbers initial conditions.
N. Touafek, E.M. Elsayed
openaire   +1 more source

Oscillation and Property B for Semi-Canonical Third-Order Advanced Difference Equations

open access: yesNonautonomous Dynamical Systems, 2022
In this paper, we present sufficient conditions for the third-order nonlinear advanced difference equations of the form Δ(a(n))Δ(b(n)Δy((n)))=p(n)f(y(σ(n)))\Delta \left( {a\left( n \right)} \right)\Delta \left( {b\left( n \right)\Delta y\left( {\left( n \
Chatzarakis G.E.   +2 more
doaj   +1 more source

Multiple big q-Jacobi polynomials [PDF]

open access: yesBulletin of Mathematical Sciences, 2020
Here, we investigate type II multiple big q-Jacobi orthogonal polynomials. We provide their explicit formulae in terms of basic hypergeometric series, raising and lowering operators, Rodrigues formulae, third-order q-difference equation, and we obtain ...
Fethi Bouzeffour, Mubariz Garayev
doaj   +1 more source

Numerical method for solving an initial-boundary value problem for a multidimensional loaded parabolic equation of a general form with conditions of the third kind [PDF]

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2022
An initial-boundary value problem is studied for a multidimensional loaded parabolic equation of general form with boundary conditions of the third kind. For a numerical solution, a locally one-dimensional difference scheme by A.A.Samarskii with order of
Zaryana Beshtokova
doaj   +1 more source

On stability of the third order partial delay differential equation with involution and Dirichlet condition

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2021
In this paper the stability of the initial value problem for the third order partial delay differential equation with involution is investigated. The first order of accuracy absolute stable difference scheme for the solution of the differential problem ...
A. Ashyralyev, S. Ibrahim, E. Hincal
doaj   +1 more source

Positive Solutions for a Third Order Nonlinear Neutral Delay Difference Equation

open access: yesAbstract and Applied Analysis, 2015
The existence, multiplicity, and properties of positive solutions for a third order nonlinear neutral delay difference equation are discussed. Six examples are given to illustrate the results presented in this paper.
Zeqing Liu   +3 more
doaj   +1 more source

Dynamical Behavior of a System of Third-Order Rational Difference Equation

open access: yesDiscrete Dynamics in Nature and Society, 2015
This paper deals with the boundedness, persistence, and global asymptotic stability of positive solution for a system of third-order rational difference equations xn+1=A+xn/yn-1yn-2, yn+1=A+yn/xn-1xn-2, n=0,1,…, where A∈(0,∞), x-i∈(0,∞); y-i∈(0,∞), i=0,1,
Qianhong Zhang   +2 more
doaj   +1 more source

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