Authors: Berenhaut, Kenneth
Foley, John
Stević, Stevo 
Affiliations: Mathematical Institute of the Serbian Academy of Sciences and Arts 
Title: The global attractivity of the rational difference equation yn = 1+ yn-k/yn-m
Journal: Proceedings of the American Mathematical Society
Volume: 135
Issue: 4
First page: 1133
Last page: 1140
Issue Date: 1-Apr-2007
Rank: M22
ISSN: 0002-9939
DOI: 10.1090/S0002-9939-06-08580-7
Abstract: 
This paper studies the behavior of positive solutions of the recursive equation yn = 1+ yn-k/yn-m, n = 0, 1, 2,., with y-s, y-s+1,.,y-1ε (0,ε) and k,m. {1, 2, 3, 4,.}, where s = max{k,m}. We prove that if gcd(k,m) = 1, with k odd, then yn tends to 2, exponentially. When combined with a recent result of E. A. Grove and G. Ladas (Periodicities in Nonlinear Difference Equations, Chapman & Hall/CRC Press, Boca Raton (2004)), this answers the question when y = 2 is a global attractor.
Publisher: American Mathematical Society

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