Oscillation theorems for a class of linear fourth order differential equations
Ján Regenda (1984)
Czechoslovak Mathematical Journal
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Ján Regenda (1984)
Czechoslovak Mathematical Journal
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Satoshi Tanaka (2000)
Annales Polonici Mathematici
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Neutral differential equations are studied. Sufficient conditions are obtained to have oscillatory solutions or nonoscillatory solutions. For the existence of solutions, the Schauder-Tikhonov fixed point theorem is used.
Manojlovic, J.V., Milosevic, J. (2008)
Electronic Journal of Qualitative Theory of Differential Equations [electronic only]
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Mihály, Tomáš (2006)
Annales Mathematicae et Informaticae
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Švec, M.
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N. Parhi, P. Praharaj (1999)
Annales Polonici Mathematici
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Some results concerning oscillation of second order self-adjoint matrix differential equations are obtained. These may be regarded as a generalization of results for the corresponding scalar equations.