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Mawhin, J. and Willem, M. (1989) Critical Point Theory and Hamiltonian System. In: John, F., Marsden, J.E. and Sirovich, L., Eds., Applied Mathematical Sciences, Springer, Berlin, 153-166.
https://doi.org/10.1007/978-1-4757-2061-7

has been cited by the following article:

• TITLE: Existence and Multiplicities of Solutions for Asymptotically Linear Ordinary Differential Equations Satisfying Sturm-Liouville BVPs with Resonance

  AUTHORS: Keqiang Li, Ronghua Tong

  KEYWORDS: Asymptotically Linear Ordinary Differential Equations with Resonance, Multiple Solutions, Sturm-Liouville Boundary Value Problem, Index Theory, Morse Theory

  JOURNAL NAME: Journal of Applied Mathematics and Physics, Vol.7 No.5, May 29, 2019

  ABSTRACT: In this paper, we prove existence and multiplicities of solutions for asymptotically linear ordinary differential equations satisfying Sturm-Liouville boundary value conditions with resonance. Adding assumption H3 that is similar to (LL) in Theorem 1.1, by index theory and Morse theory, we obtain more nontrivial solutions.