Merve KARA, Nouressedat TOUAFEK, Yasin YAZLİK

Well-Defined Solutions of a Three-Dimensional System of Difference Equations

We show that the three-dimensional system of difference equationsx_{n+1}=\frac{ax_{n}z_{n-1}}{z_{n}-\beta}+\gamma, y_{n+1}=\frac{by_{n}x_{n-1}}{x_{n}-\gamma}+\alpha, z_{n+1}=\frac{cz_{n}y_{n-1}}{y_{n}-\alpha}+\beta, where the parameters a,b,x, \alpha, \beta, \gamma and the initial conditions x_{-i}, y_{-i}, i\in\{0,1\} are non-zero real numbers, can be solved. Using the obtained formulas, we determine the asymptotic behavior of solutions and give conditions for which periodic solutions exists. Some numerical examples are given to demonstrate the theoretical results.

Keywords:

Periodic solution, difference equation, three dimensional system of difference equations,

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