Periodic solutions for second order differential systems with damping
Fabio Zanolin (1981)
Rendiconti del Seminario Matematico della Università di Padova
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Fabio Zanolin (1981)
Rendiconti del Seminario Matematico della Università di Padova
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Stanisław Sędziwy (1972)
Annales Polonici Mathematici
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G. J. Butler, H. I. Freedman (1979)
Annales Polonici Mathematici
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J. Ligęza (1977)
Annales Polonici Mathematici
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Tatiane Cardoso Batista, Juliano dos Santos Gonschorowski, Fabio Armando Tal (2015)
Fundamenta Mathematicae
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Let K be the Cantor set. We prove that arbitrarily close to a homeomorphism T: K → K there exists a homeomorphism T̃: K → K such that the ω-limit of every orbit is a periodic orbit. We also prove that arbitrarily close to an endomorphism T: K → K there exists an endomorphism T̃: K → K with every orbit finally periodic.
G. J. Butler (1974)
Annales Polonici Mathematici
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Zdzisław Wyderka (1996)
Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica
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Bingwen Liu (2006)
Annales Polonici Mathematici
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We use the coincidence degree to establish new results on the existence and uniqueness of T-periodic solutions for a kind of Duffing equation with two deviating arguments of the form x'' + Cx'(t) + g₁(t,x(t-τ₁(t))) + g₂(t,x(t-τ₂(t))) = p(t).
Gordon Woodward (1974)
Studia Mathematica
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Lian, Jin-Guo (2009)
Applied Mathematics E-Notes [electronic only]
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S. Invernizzi, F. Zanolin (1979)
Rendiconti del Seminario Matematico della Università di Padova
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