Results 1 to 10 of about 1,849,805 (333)

A note on general solutions to a hyperbolic-cotangent class of systems of difference equations

open access: yesAdvances in Difference Equations, 2020
Recently there has been some interest in difference equations and systems whose forms resemble some trigonometric formulas. One of the classes of such systems is the so-called hyperbolic-cotangent class of systems of difference equations.
Stevo Stević
doaj   +1 more source

Laguerre-Freud equations for Generalized Hahn polynomials of type I

open access: yes, 2018
We derive a system of difference equations satisfied by the three-term recurrence coefficients of some families of discrete orthogonal ...
Dominici, Diego
core   +1 more source

Complexiton Solutions of the Toda Lattice Equation

open access: yes, 2004
A set of coupled conditions consisting of differential-difference equations is presented for Casorati determinants to solve the Toda lattice equation. One class of the resulting conditions leads to an approach for constructing complexiton solutions to ...
Ablowitz   +18 more
core   +1 more source

A k-Dimensional System of Fractional Finite Difference Equations

open access: yesAbstract and Applied Analysis, 2014
We investigate the existence of solutions for a k-dimensional system of fractional finite difference equations by using the Kranoselskii’s fixed point theorem. We present an example in order to illustrate our results.
Dumitru Baleanu   +2 more
doaj   +1 more source

Trichotomy of a system of two difference equations

open access: yesJournal of Mathematical Analysis and Applications, 2004
The authors study the boundedness and asymptotic behavior of positive solutions of the system of difference equations \[ x_{n+1}=A+\frac{\sum_{i=1}^{k} a_ix_{n-p_i}}{\sum_{j=1}^{m}b_jy_{n-q_j}},\qquad y_{n+1}=B+\frac{\sum_{i=1}^{k} c_iy_{n-p_i}}{\sum_{j=1}^{m}d_jx_{n-q_j}}, \] and obtain some results, where \(k, m\in \{1, 2, \ldots\}, A, B, a_i, c_i ...
Papaschinopoulos, G., Stefanidou, G.
openaire   +2 more sources

On a k-Order System of Lyness-Type Difference Equations

open access: yesAdvances in Difference Equations, 2007
We consider the following system of Lyness-type difference equations: x1(n+1)=(akxk(n)+bk)/xk−1(n−1), x2(n+1)=(a1x1(n)+b1)/xk(n−1), xi(n+1)=(ai−1xi−1(n)+bi−1)/xi−2(n−1), i=3,4,…,k, where ai, bi, i=1,2,…,k,
G. Papaschinopoulos   +2 more
doaj   +1 more source

On Invariants for Difference Equations and Systems of Difference Equations of Rational Form

open access: yesJournal of Mathematical Analysis and Applications, 1999
The author generalizes results of \textit{C. J. Schinas} [J. Math. Anal. Appl. 216, No. 1, 164-179 (1997; Zbl 0889.39006)] on invariants of difference equations of rational form to second- and third-order autonomous and nonautonomous difference equations.
openaire   +2 more sources

An Analysis of the Transition Zone Between the Various Scaling Regimes in the Small-World Model

open access: yes, 2006
We analyse the so-called small-world network model (originally devised by Strogatz and Watts), treating it, among other things, as a case study of non-linear coupled difference or differential equations.
Lochmann, Andreas, Requardt, Manfred
core   +2 more sources

Solvability of a close to symmetric system of difference equations

open access: yesElectronic Journal of Differential Equations, 2016
The problem of solvability of a close to symmetric product-type system of difference equations of second order is investigated. Some recent results in the literature are extended.
Stevo Stevic   +2 more
doaj  

Exact Solutions of System of Fourth-Order Difference Equations

open access: yesPan-American Journal of Mathematics
In this paper, we derive the solutions of system difference equations xn+1 = xn−1yn−3 / yn−1(a + bxn−1yn−3), yn+1 = yn−1xn−3 / xn−1(c + dyn−1xn−3), n∈N0, where the parameters a, b, c, d are real numbers and the initial conditions x−i and y−i for (i = 0,
Messaoud Berkal, Raafat Abo-Zeid
doaj   +1 more source

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