Bouzid Mansouri, Abdelouaheb Ardjouni, Ahcene Djoudi (2022)
Commentationes Mathematicae Universitatis Carolinae
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The objective of this work is the application of Krasnosel'skii's fixed point technique to prove the existence of periodic solutions of a system of coupled nonlinear integro-differential equations with variable delays. An example is given to illustrate this work.
Michal Fečkan, JinRong Wang, Yong Zhou (2014)
Nonautonomous Dynamical Systems
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In this paper, we consider periodic solutions for a class of nonlinear evolution equations with non-instantaneous impulses on Banach spaces. By constructing a Poincaré operator, which is a composition of the maps and using the techniques of a priori estimate, we avoid assuming that periodic solution is bounded like in [1-4] and try to present new sufficient conditions on the existence of periodic mild solutions for such problems by utilizing semigroup theory and Leray-Schauder's fixed...
Pierpaolo Omari, Fabio Zanolin (1984)
Rendiconti del Seminario Matematico della Università di Padova
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Alain Haraux (1989)
Manuscripta mathematica
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Ashordia, M. (1999)
Memoirs on Differential Equations and Mathematical Physics
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Fabio Zanolin (1981)
Rendiconti del Seminario Matematico della Università di Padova
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Fabio Zanolin (1983)
Rendiconti del Seminario Matematico della Università di Padova
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Kiguradze, Ivan, Půža, Bedřich (1996)
Archivum Mathematicum
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Radosław Pietkun (2010)
Bulletin of the Polish Academy of Sciences. Mathematics
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The existence of a continuous periodic and almost periodic solutions of the nonlinear integral inclusion is established by means of the generalized Schauder fixed point theorem.
Dang Dinh Hai (1990)
Annales Polonici Mathematici
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Elvira Mirenghi, Maria Tucci (1990)
Rendiconti del Seminario Matematico della Università di Padova
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Ma, Ruyun, Chen, Tianlan, Lu, Yanqiong (2010)
Discrete Dynamics in Nature and Society
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