Oscillation and nonoscillation criteria for two-dimensional systems of linear ordinary differential equations.
Polák, L. (2004)
Georgian Mathematical Journal
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Polák, L. (2004)
Georgian Mathematical Journal
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Agarwal, Ravi P., Grace, Said R., O'Regan, Donal (2004)
Georgian Mathematical Journal
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Bartušek, Miroslav (1996)
Georgian Mathematical Journal
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Sheng Li Xie, Sui Sun Cheng (1995)
Annales Polonici Mathematici
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This paper establishes oscillation theorems for a class of functional parabolic equations which arises from logistic population models with delays and diffusion.
Kiguradze, I., Chichua, D. (1995)
Georgian Mathematical Journal
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Lomtatidze, A. (1997)
Georgian Mathematical Journal
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Bartušek, Miroslav (1995)
Georgian Mathematical Journal
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Lomtatidze, A., Partsvania, N. (1999)
Georgian Mathematical Journal
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D. Bainov, M. Dimitrova (1996)
Applicationes Mathematicae
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Effective sufficient conditions for oscillation and nonoscillation of solutions of some operator-differential equations with piecewise constant argument are found.
Witold A. J. Kosmala (1994)
Annales Polonici Mathematici
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We state and prove two oscillation results which deal with bounded solutions of a forced higher order differential equation. One proof involves the use of a nonlinear functional.
Ramishvili, I., Tadumadze, T. (2004)
Georgian Mathematical Journal
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Grammatikopoulos, M.K., Koplatadze, R. (2000)
Georgian Mathematical Journal
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Lomtatidze, A. (1995)
Georgian Mathematical Journal
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