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Discrete Dynamics in Nature and SocietyVolume 2010 2010, Article ID 705387, 14 pages

Research Article

Department of Computation Science, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong 510225, China

Department of Mathematics and Physics, Fujian University of Technology, Fuzhou, Fujian 350108, China

Received 7 December 2009; Accepted 15 January 2010

Academic Editor: Leonid Shaikhet

Copyright © 2010 Tieshan He et al. 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 consider the second-order three-point discrete boundary value problem. By using the topological degree theory and the fixed point index theory, we provide sufficient conditions for the existence of sign-changing solutions, positive solutions, and negative solutions. As an application, an example is given to demonstrate our main results.

Autor: Tieshan He, Wei Yang, and Fengjian Yang



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