Periodic Solutions of Symmetric Elliptic Singular Systems: the Higher Codimension Case
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AbstractWe show the existence of periodic solutions of certain singularly perturbed systems having symmetry properties. Our result applies to some singular systems arising in the study of Hamiltonian systems with a strong restoring force and extends to a higher codimension the result obtained in our previous paper [4].
1968 ◽
Vol 4
(2)
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pp. 300-307
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1985 ◽
Vol 36
(4)
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pp. 520-537
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1955 ◽
Vol 4
(6)
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pp. 943-950
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1982 ◽
Vol 129
(2)
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pp. 49
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