Periodic solutions of
Ráb, Miloš
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Ráb, Miloš
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Bahman Mehri (1980)
Archivum Mathematicum
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Anna A. Kwiecińska (1996)
Annales Polonici Mathematici
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A proof of the C⁰-closing lemma for noninvertible discrete dynamical systems and its extension to the noncompact case are presented.
Marco Degiovanni, Fabio Giannoni, Antonio Marino (1987)
Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti Lincei. Matematica e Applicazioni
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We study the existence of regular periodic solutions to some dynamical systems whose potential energy is negative, has only a singular point and goes to zero at iniìnity. We give sufficient conditions to the existence of periodic solutions of assigned period which do not meet the singularity.
V. V. S. Ramachandram (2012)
Visual Mathematics
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Xingyuan, Wang, Yijie, He, Yuanyuan, Sun (2010)
Discrete Dynamics in Nature and Society
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Stanisław Sȩdziwy (2009)
Bollettino dell'Unione Matematica Italiana
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The note presents a simple proof of a result due to F. Obersnel and P. Omari on the existence of periodic solutions with an arbitrary period of the first order scalar differential equation, provided equation has an n-periodic solution with the minimal period n > 1.
Bahman Mehri (1977)
Archivum Mathematicum
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