Advances in Difference Equations volume 2007, Article number: 031272 (2007)
We consider the following system of Lyness-type difference equations: 
, 
, 
, 
, where 
, 
, 
, are positive constants, 
is an integer, and the initial values are positive real numbers. We study the existence of invariants, the boundedness, the persistence, and the periodicity of the positive solutions of this system.
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Papaschinopoulos, G., Schinas, C.J. & Stefanidou, G. On a k-Order System of Lyness-Type Difference Equations. Adv Differ Equ 2007, 031272 (2007). https://doi.org/10.1155/2007/31272
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DOI: https://doi.org/10.1155/2007/31272