Nonuniform nonresonance conditions at the two first eigenvalues for periodic solutions of forced Lienard and Duffing equations
1982 ◽
Vol 12
(4)
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pp. 643-654
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2011 ◽
Vol 378
(2)
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pp. 657-666
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Keyword(s):
2002 ◽
Vol 18
(3)
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pp. 513-522
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1998 ◽
Vol 34
(3)
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pp. 443-460
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2019 ◽
Vol 47
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pp. 484-495