Solution of a third order fractional system of difference equations.

This paper is devoted to study the form of the solutions and the periodicity of the following third order systems of rational difference equations xn+1 = yn-2/1 - yn-2xn-1yn, yn+1 = xn-2/±1 ±xn-2yn-1xn, with initial conditions x-2, x-1, x0, y-2, y-1 and y0 are real numbers. [ABSTRACT FROM AUTHOR]