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Dynamics of a two-dimensional system of rational difference equations of Leslie--Gower type

open access: yesAdvances in Difference Equations, 2011
We investigate global dynamics of the following systems of difference equations x n + 1 = α 1 + β 1 x n A 1 + y n y n + 1 = γ 2 y n A 2 + B 2
Kulenović MRS   +2 more
doaj   +2 more sources

The periodic nature and expression on solutions of some rational systems of difference equations

open access: yesAlexandria Engineering Journal, 2023
Our aim in this paper is to obtain formulas expressions for solutions of the following fractional systems of difference equationsLn+1=Ln-3Mn-4Mn±1-Ln-3Mn-4Wn-1Xn-2,n=0,1,2,…,Mn+1=Mn-3Wn-4Wn±1-Mn-3Wn-4Xn-1Ln-2,Wn+1=Wn-3Xn-4Xn±1±Wn-3Xn-4Ln-1Mn-2,Xn+1=Xn ...
E.M. Elsayed, B.S. Alofi
doaj   +1 more source

Dynamical behaviors of a k-order fuzzy difference equation

open access: yesOpen Mathematics, 2022
Difference equations are often used to create discrete mathematical models. In this paper, we mainly study the dynamical behaviors of positive solutions of a nonlinear fuzzy difference equation: xn+1=xnA+Bxn−k(n=0,1,2,…),{x}_{n+1}=\frac{{x}_{n}}{A+B{x}_ ...
Han Caihong   +3 more
doaj   +1 more source

Nontrivial solutions of discrete Kirchhoff-type problems via Morse theory

open access: yesAdvances in Nonlinear Analysis, 2022
In this article, we study discrete Kirchhoff-type problems when the nonlinearity is resonant at both zero and infinity. We establish a series of results on the existence of nontrivial solutions by combining variational method with Morse theory.
Long Yuhua
doaj   +1 more source

Entire solutions for several general quadratic trinomial differential difference equations

open access: yesOpen Mathematics, 2021
This paper is devoted to exploring the existence and the forms of entire solutions of several quadratic trinomial differential difference equations with more general forms.
Luo Jun, Xu Hong Yan, Hu Fen
doaj   +1 more source

Positive solutions of a discrete nonlinear third-order three-point eigenvalue problem with sign-changing Green's function

open access: yesOpen Mathematics, 2021
In this paper, we discuss the existence of positive solutions to a discrete third-order three-point boundary value problem. Here, the weight function a(t)a\left(t) and the Green function G(t,s)G\left(t,s) both change their sign.
Cao Xueqin, Gao Chenghua, Duan Duihua
doaj   +1 more source

The smallest singular value of certain Toeplitz-related parametric triangular matrices

open access: yesSpecial Matrices, 2021
Let L be the infinite lower triangular Toeplitz matrix with first column (µ, a1, a2, ..., ap, a1, ..., ap, ...)T and let D be the infinite diagonal matrix whose entries are 1, 2, 3, . . . Let A := L + D be the sum of these two matrices.
Solary Maryam Shams   +2 more
doaj   +1 more source

On the Equivalence of Different Lax Pairs for the Kac-van Moerbeke Hierarchy [PDF]

open access: yes, 2007
We give a simple algebraic proof that the two different Lax pairs for the Kac-van Moerbeke hierarchy, constructed from Jacobi respectively super-symmetric Dirac-type difference operators, give rise to the same hierarchy of evolution equations.
B.A. Dubrovin   +10 more
core   +3 more sources

Integral Inequalities and their Applications to the Calculus of Variations on Time Scales [PDF]

open access: yes, 2010
We discuss the use of inequalities to obtain the solution of certain variational problems on time scales.Comment: To appear in Mathematical Inequalities & Applications (http://mia.ele-math.com).
Bohner, Martin J.   +2 more
core   +2 more sources

On the solutions of a system of (2p+1) difference equations of higher order

open access: yesMiskolc Mathematical Notes, 2021
In this paper we represent the well-defined solutions of the system of the higher-order rational difference equations x j) n+1 = 1+2x j+1)mod(2p+1) n−k 3+ x j+1)mod(2p+1) n−k , n,k, p ∈ N0 in terms of Fibonacci and Lucas sequences, where the initial ...
Amira Khelifa, Yacine Halim, M. Berkal
semanticscholar   +1 more source

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