Abstract

We study the difference equation xn+1=αxn/xn1, n0, where α and where x1 and x0 are so chosen that the corresponding solution (xn) of the equation is defined for every n. We prove that when α=3 the equilibrium x¯=2 of the equation is not stable, which corrects a result due to X. X. Yan, W. T. Li, and Z. Zhao. For the case α=1, we show that there is a strictly monotone solution of the equation, and we also find its asymptotics. An explicit formula for the solutions of the equation are given for the case α=0.