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Abstract and Applied Analysis
Volume 2014 (2014), Article ID 567471, 10 pages
Nonconstant Periodic Solutions of Discrete -Laplacian System via Clark Duality and Computations of the Critical Groups
1College of Mathematics and Information Sciences, Guangzhou University, Guangzhou, Guangdong 510006, China
2Key Laboratory of Mathematics and Interdisciplinary Sciences of Guangdong Higher Education Institutes, Guangzhou University, Guangzhou, Guangdong 510006, China
Received 18 October 2013; Accepted 2 January 2014; Published 12 February 2014
Academic Editor: Svatoslav Staněk
Copyright © 2014 Bo Zheng. 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.
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