Results 11 to 20 of about 15,821 (256)

Dynamics and Solutions of Higher-Order Difference Equations

open access: yesMathematics, 2023
The invariance method, known as Lie analysis, consists of finding a group of transformations that leave a difference equation invariant. This powerful tool permits one to lower the order, linearize and more importantly, obtain analytical solutions of ...
Mensah Folly-Gbetoula
doaj   +1 more source

The periodicity and solutions of the rational difference equation with periodic coefficients

open access: yesComputers & Mathematics with Applications, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Taskara, N., Uslu, K., Tollu, D. T.
openaire   +3 more sources

Periodic solutions for a coupled pair of delay difference equations

open access: yesAdvances in Difference Equations, 2005
Based on the fixed-point index theory for a Banach space, positive periodic solutions are found for a system of delay difference equations. By using such results, the existence of nontrivial periodic solutions for delay difference equations with positive
Sui Sun Cheng   +2 more
doaj   +2 more sources

On the Periodicity of General Class of Difference Equations

open access: yesAxioms, 2020
In this paper, we are interested in studying the periodic behavior of solutions of nonlinear difference equations. We used a new method to find the necessary and sufficient conditions for the existence of periodic solutions.
Osama Moaaz, Hamida Mahjoub, Ali Muhib
doaj   +1 more source

On the Periodicity of Solutions of the System of Rational Difference Equations

open access: yesApplied Mathematics, 2011
In this paper, we have investigated the periodicity of the solutions of the system of difference equations , where .
ÇİNAR, CENGİZ   +2 more
openaire   +3 more sources

Weighted Asymptotically Periodic Solutions of Linear Volterra Difference Equations

open access: yesAbstract and Applied Analysis, 2011
A linear Volterra difference equation of the form x(n+1)=a(n)+b(n)x(n)+∑i=0nK(n,i)x(i), where x:N0→R, a:N0→R, K:N0×N0→R and b:N0→R∖{0} is ω-periodic, is considered.
Josef Diblík   +3 more
doaj   +1 more source

Existence Theorems of Periodic Solutions for Second-Order Nonlinear Difference Equations

open access: yesAdvances in Difference Equations, 2008
The authors consider the second-order nonlinear difference equation of the type using critical point theory, and they obtain some new results on the existence of periodic solutions.
Yu Jianshe, Cai Xiaochun
doaj   +2 more sources

Existence of Periodic Positive Solutions for Abstract Difference Equations

open access: yesDiscrete Dynamics in Nature and Society, 2011
We will consider the existence of multiple positive periodic solutions for a class of abstract difference equations by using the well-known fixed point theorem (due to Krasnoselskii).
Shugui Kang, Yaqiong Cui, Jianmin Guo
doaj   +1 more source

Periodic solutions of nonlinear Vector difference equations

open access: yesAdvances in Difference Equations, 2006
Essentially nonlinear difference equations in a Euclidean space are considered. Conditions for the existence of periodic solutions and solution estimates are derived. Our main tool is a combined usage of the recent estimates for matrix-valued functions
Gil' MI
doaj   +2 more sources

Positive Periodic Solutions of Nonlinear First-Order Functional Difference Equations

open access: yesDiscrete Dynamics in Nature and Society, 2010
We consider the existence, multiplicity, and nonexistence of positive T-periodic solutions for the difference equations Δx(n)=a(n)g(x(n))x(n)-λb(n)f(x(n-τ(n))), and Δx(n)+a(n)g(x(n))x(n)=λb(n)f(x(n-τ(n))), where a,b:ℤ→[0,∞) are T-periodic, τ:ℤ→ℤ is T ...
Ruyun Ma, Tianlan Chen, Yanqiong Lu
doaj   +1 more source

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