Subharmonic solutions for hamiltonian systems via a ${ℤ}_{p}$ pseudoindex theory
Annali della Scuola Normale Superiore di Pisa - Classe di Scienze, Serie 4, Volume 15 (1988) no. 3, pp. 357-409.
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author = {Tarantello, Gabriella},
title = {Subharmonic solutions for hamiltonian systems via a $\mathbb {Z}_p$ pseudoindex theory},
journal = {Annali della Scuola Normale Superiore di Pisa - Classe di Scienze},
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Tarantello, Gabriella. Subharmonic solutions for hamiltonian systems via a $\mathbb {Z}_p$ pseudoindex theory. Annali della Scuola Normale Superiore di Pisa - Classe di Scienze, Serie 4, Volume 15 (1988) no. 3, pp. 357-409. http://archive.numdam.org/item/ASNSP_1988_4_15_3_357_0/

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