Published: 2009-09-30

Existence of positive periodic solutions of some differential equations of order n (n≥2)

Jan Ligęza

Abstract

We study the existence of positive periodic solutions of the equations
x(n)(t) − p(t)x(t) + μf(t, x(t), x'(t), . . . , x(n−1)(t)) = 0,
x(n)(t) + p(t)x(t) = μf(t, x(t), x'(t), . . . , x(n−1)(t)),
where n≥2, μ>0, p: (-∞,∞)→(0,∞) is continuous and 1–periodic, f is a continuous function and 1–periodic in the first variable and may take values of different signs. The Krasnosielski fixed point theorem on cone is used.

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Ligęza, J. (2009). Existence of positive periodic solutions of some differential equations of order n (n≥2). Annales Mathematicae Silesianae, 23, 61–81. Retrieved from https://journals.us.edu.pl/index.php/AMSIL/article/view/14045

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Domyślna okładka

Vol. 23 (2009)
Published: 2009-09-30


ISSN: 0860-2107
eISSN: 2391-4238
Ikona DOI 10.1515/amsil

Publisher
University of Silesia Press

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