Kanishka Perera, "Homological local linking", Abstract and Applied Analysis, vol. 3, Article ID 134105, 9 pages, 1998. https://doi.org/10.1155/S1085337598000505
Homological local linking
We generalize the notion of local linking to include certain cases where the functional does not have a local splitting near the origin. Applications to second-order Hamiltonian systems are given.
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