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Discrete Dynamics in Nature and Society
Volume 2010, Article ID 405121, 4 pages
Research Article

On Two Systems of Difference Equations

1Faculty of Electrical Engineering, University of Belgrade, Bulevar Kralja Aleksandra 73, 11120 Belgrade, Serbia
2Mathematical Institute, Serbian Academy of Sciences, Knez Mihailova 36/III, 11000 Beograd, Serbia

Received 11 January 2010; Accepted 9 March 2010

Academic Editor: Leonid Berezansky

Copyright © 2010 Bratislav Iričanin and Stevo Stević. 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.


We give very short and elegant proofs of the main results in the work of Yalcinkaya et al. (2008).