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On the solutions of systems of rational difference equations. (English) Zbl 1255.39011
Summary: We deal with the periodic nature and the form of the solutions of the following systems of rational difference equations $$x_{n+1}=\frac{x_{n-3}}{\pm1\pm x_{n-3}y_{n-1}},\quad y_{n+1}=\frac{y_{n-3}}{\pm1\pm y_{n-3}x_{n-1}}$$ with a nonzero real number’s initial conditions.

##### MSC:
 39A23 Periodic solutions (difference equations)
##### Keywords:
periodic solutions; system of difference equations
Full Text:
##### References:
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