Abstract.
We consider a class of superlinear conservative ordinary differential systems in Newtonian form:¶\( -\ddot U=\nabla E(t,U),\qquad U(t)\in \Bbb R^n \)¶ with \( t\in[A,B] \). We prove the existence of infinitely many solutions to the Dirichlet boundary value problem. Such solutions are characterized by the number of zeroes of each component. Our argument is based upon an extension of the Nehari variational method [11].
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Received November 1999
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Terracini, S., Verzini, G. Solutions of prescribed number of zeroes to a class of superlinear ODE's systems. NoDEA, Nonlinear differ. equ. appl. 8, 323–341 (2001). https://doi.org/10.1007/PL00001451
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DOI: https://doi.org/10.1007/PL00001451