Results 21 to 30 of about 14,922,818 (371)

On a Difference-Delay Equation

open access: yesJournal of Mathematical Analysis and Applications, 2000
The behaviour of continuous real solutions \(f(t)\) to the equation \[ f(t)=a_1f(t+h_1) +a_2f(t+h_2) \] and its dependence on the real positive constants \(a_1,a_2, h_1,h_2\) is studied. Definite answers are given except in the case \(h_1/h_2\) is rational.
Davies, Roy O., Ostaszewski, A.J.
openaire   +2 more sources

A Difference Equation Model of Infectious Disease [PDF]

open access: yesInternational Journal Bioautomation, 2022
In the context of so much uncertainty with coronavirus variants and official mandate based on seemingly exaggerated predictions of gloom from epidemiologists, it is appropriate to consider a revised model of relative simplicity, because there can be ...
Anthony Shannon   +3 more
doaj   +1 more source

On the discrete and continuous Miura Chain associated with the Sixth Painlevé Equation [PDF]

open access: yes, 1999
A Miura chain is a (closed) sequence of differential (or difference) equations that are related by Miura or B\"acklund transformations. We describe such a chain for the sixth Painlev\'e equation (\pvi), containing, apart from \pvi itself, a Schwarzian ...
Ablowitz   +25 more
core   +3 more sources

Dynamics of a Rational Difference Equation

open access: yesAdvances in Difference Equations, 2010
The main goal of the paper is to investigate boundedness, invariant intervals, semicycles, and global attractivity of all nonnegative solutions of the equation xn+1=(α+βxn+γxn-k)/(1+xn-k), n∈ℕ0, where the parameters
Wan-Tong Li, Lin-Xia Hu, Xiu-Mei Jia
doaj   +2 more sources

On a Max-Type Difference Equation

open access: yesDiscrete Dynamics in Nature and Society, 2007
We study the behaviour of the solutions of the following difference equation with the max operator: xn+1=max{1/xn,Axn−1}, n∈ℕ0, where parameter A∈ℝ and initial values x−1 and x0 are nonzero real numbers.
I. Yalçinkaya   +2 more
doaj   +1 more source

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

Bounded and periodic solutions to the linear first-order difference equation on the integer domain

open access: yes, 2017
The existence of bounded solutions to the linear first-order difference equation on the set of all integers is studied. Some sufficient conditions for the existence of solutions converging to zero when n→−∞$n\to -\infty$, as well as when n→+∞$n\to+\infty$
S. Stević
semanticscholar   +1 more source

A high order $q$-difference equation for $q$-Hahn multiple orthogonal polynomials [PDF]

open access: yes, 2009
A high order linear $q$-difference equation with polynomial coefficients having $q$-Hahn multiple orthogonal polynomials as eigenfunctions is given. The order of the equation is related to the number of orthogonality conditions that these polynomials ...
Abramowitz M.   +10 more
core   +3 more sources

On the dynamics of a five-order fuzzy difference equation

open access: yes, 2017
Our aim in this paper is to investigate the existence and uniqueness of the positive solutions and the asymptotic behavior of the equilibrium points of the fuzzy difference equation xn+1 = Axn−1xn−2 D+Bxn−3 +Cxn−4 , n = 0, 1, 2, · · · , where xn is a ...
Changyou Wang   +4 more
semanticscholar   +1 more source

On the Difference Equation xn+1=xnxn-k/(xn-k+1a+bxnxn-k)

open access: yesAbstract and Applied Analysis, 2012
We show that the difference equation xn+1=xnxn-k/xn-k+1(a+bxnxn-k),n∈ℕ0, where k∈ℕ, the parameters a, b and initial values x-i, i=0,k̅ are real numbers, can be solved in closed form considerably extending the results in the literature.
Stevo Stević   +3 more
doaj   +1 more source

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