Displaying similar documents to “New oscillation criteria for second-order delay differential equations with mixed nonlinearities.”

Oscillation of unstable second order neutral differential equations with mixed argument

Jozef Džurina, Viktor Pirč (2005)

Mathematica Bohemica

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The aim of this paper is to present new oscillatory criteria for the second order neutral differential equation with mixed argument ( x ( t ) - p x ( t - τ ) ) ' ' - q ( t ) x ( σ ( t ) ) = 0 . The results include also sufficient conditions for bounded and unbounded oscillation of the equations considered.

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.