Solutions of Fractional Systems of Difference Equations

E.M. Elsayed1,2, M. Mansour1,2, M.M. El-Dessoky1,2
1King Abdulaziz University, Faculty of Science, Mathematics Department, P. O. Box 80203, Jeddah 21589, Saudi Arabia.
2Department of Mathematics, Faculty of Science, Mansoura University, Mansoura 35516, Egypt.

Abstract

This paper is devoted to studying the form of the solutions and
the periodicity of the following rational system of difference
equations:

\begin{align*}
x_{n+1} &= \frac{x_{n-5}}{1-x_n-_5y_{n-2}}, &
y_{n+1}= \frac{ y_{n-5}}{\pm1 \pm y_{n-5} + _5x_{n-2}},
\end{align*}

with initial conditions are real numbers.