The multiplicity of periodic solutions for a class of second order Hamiltonian system with superquadratic plus subquadratic nonlinearity is studied in this paper. Obtained via the Symmetric Mountain Pass Lemma, two results about infinitely many periodic solutions of the systems extend some previously known results.
Mingwei WANG
,
Fei GUO
. MULTIPLICITY OF PERIODIC SOLUTIONS FOR SECOND ORDER HAMILTONIAN SYSTEMS WITH MIXED NONLINEARITIES[J]. Acta mathematica scientia, Series B, 2021
, 41(2)
: 371
-380
.
DOI: 10.1007/s10473-021-0203-4
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