Displaying similar documents to “Oscillation in neutral partial functional-differential equations and inequalities.”

Oscillation properties for parabolic equations of neutral type

Bao Tong Cui (1992)

Commentationes Mathematicae Universitatis Carolinae

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The oscillation of the solutions of linear parabolic differential equations with deviating arguments are studied and sufficient conditions that all solutions of boundary value problems are oscillatory in a cylindrical domain are given.

Oscillatory properties of solutions of three-dimensional differential systems of neutral type

Eva Špániková (2000)

Czechoslovak Mathematical Journal

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The purpose of this paper is to obtain oscillation criteria for the differential system [ y 1 ( t ) - a ( t ) y 1 ( g ( t ) ) ] ' = p 1 ( t ) f 1 ( y 2 ( h 2 ( t ) ) ) y 2 ' ( t ) = p 2 ( t ) f 2 ( y 3 ( h 3 ( t ) ) ) y 3 ' ( t ) = - p 3 ( t ) f 3 ( y 1 ( h 1 ( t ) ) ) , t ∈ ℝ + = [ 0 , ∞ ) .