Multiplicity of subharmonic solutions of forced Hamiltonian systems near an equilibrium |
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Authors: | Maria Letizia Bertotti |
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Institution: | (1) Dipartimento di Matematica, Università di Trento, 38050 Povo-Trento, Italy |
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Abstract: | We prove existence and multiplicity of long time periodic solutions for a class of nonlinear nonautonomous Hamiltonian systems locally near an equilibrium solution. The result relies on a variational principle and on the spectral analysis of an associated linear operator.Work performed under the auspices of the Ministero della Pubblica Istruzione (40%). |
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