Oscillation in second order functional equations with deviating arguments.
Singh, Bhagat (1981)
International Journal of Mathematics and Mathematical Sciences
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Singh, Bhagat (1981)
International Journal of Mathematics and Mathematical Sciences
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Jozef Džurina (2004)
Czechoslovak Mathematical Journal
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In this paper we present some new oscillatory criteria for the -th order neutral differential equations of the form The results obtained extend and improve a number of existing criteria.
Rudolf Oláh (1980)
Archivum Mathematicum
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Bartušek, Miroslav, Cecchi, Mariella, Došlá, Zuzana, Marini, Mauro (2010)
Abstract and Applied Analysis
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Mouffak Benchohra, Abdelghani Ouahab (2005)
Commentationes Mathematicae Universitatis Carolinae
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In this paper we discuss the existence of oscillatory and nonoscillatory solutions of first order impulsive differential inclusions. We shall rely on a fixed point theorem of Bohnenblust-Karlin combined with lower and upper solutions method.