Copyright © 2010 Bratislav D. Iričanin and E. M. Elsayed. This is an open access article distributed under the
Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
We show that every well-defined solution of the fourth-order difference equation xn+1=max{A/xn,xn−3}, n∈ℕ0, where parameter A≥0, is eventually periodic with period four.