Open AccessPeriodic Solutions of Second-Order Difference Problem with Potential Indefinite in Sign
Author(s) -
Honghua Bin
Publication year - 2013
Publication title -
abstract and applied analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.228
H-Index - 56
eISSN - 1687-0409
pISSN - 1085-3375
DOI - 10.1155/2013/517036
Subject(s) - mathematics , combinatorics , sign (mathematics) , order (exchange) , mathematical analysis , economics , finance
We investigate the periodic solutions of second-order difference problem with potential indefinite in sign. We consider the compactness condition of variational functional and local linking at 0 by introducing new number . By using Morse theory, we obtain some new results concerning the existence of nontrivial periodic solution
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