Abstract
In this paper, we study the Strum–Liouville boundary value problem
Using critical point theory and suitable truncation techniques, we prove the existence of two opposite constant sign solutions and infinitely many sign-changing solutions of the problem. Different from the existing research, we do not impose any restrictions to the behavior of the nonlinear term \(f\) at infinity.
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The authors thank the referee for his careful reading of the paper and his valuable comments.
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Communicated by A. Constantin.
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., Sun, Z., Yan, H. et al. Constant-sign and sign-changing solutions for the Sturm–Liouville boundary value problems. Monatsh Math 179, 41–55 (2016). https://doi.org/10.1007/s00605-014-0694-3
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DOI: https://doi.org/10.1007/s00605-014-0694-3
Keywords
- Strum–Liouville problem
- Sign-changing solution
- Constant-sign solution
- Critical point theory
- Genus
- Truncation