Abstract
In this paper, we study the existence of sign-changing solutions and positive solutions for second-order nonlinear difference equations on a finite discrete segment with periodic boundary condition provided that the nonlinearity is asymptotically linear at infinity. The critical point theory and variational methods are employed to discuss this problem.
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Acknowledgments
The authors thank the anonymous referee very much for the careful reading the manuscript and for the valuable suggestions and comments. Tieshan He thanks School of Mathematics and Computational Science of Sun Yat–Sen University for the hospitality when he was visiting there in 2011.
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Communicated by Syakila Ahmad.
Supported by the NNSF of China (No. 11201504) and the Scientific Research Plan Item of Guangdong Provincial Department of Education (No. 2011TJK468).
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He, T., Zhou, Y., Xu, Y. et al. Sign-Changing Solutions for Discrete Second-Order Periodic Boundary Value Problems. Bull. Malays. Math. Sci. Soc. 38, 181–195 (2015). https://doi.org/10.1007/s40840-014-0012-1
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DOI: https://doi.org/10.1007/s40840-014-0012-1
Keywords
- Periodic boundary value problem
- Difference equation
- Asymptotically linear
- Invariant sets of descending flow
- Sign-changing solution