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On oscillation and nonoscillation properties of Emden-Fowler difference equations

Mariella Cecchi, Zuzana Došlá, Mauro Marini (2009)

Open Mathematics

A characterization of oscillation and nonoscillation of the Emden-Fowler difference equation Δ ( a n Δ x n α s g n Δ x n ) + b n x n + 1 β s g n x n + 1 = 0 is given, jointly with some asymptotic properties. The problem of the coexistence of all possible types of nonoscillatory solutions is also considered and a comparison with recent analogous results, stated in the half-linear case, is made.

On oscillatory nonlinear fourth-order difference equations with delays

Arun K. Tripathy (2018)

Mathematica Bohemica

In this work, oscillatory behaviour of solutions of a class of fourth-order neutral functional difference equations of the form Δ 2 ( r ( n ) Δ 2 ( y ( n ) + p ( n ) y ( n - m ) ) ) + q ( n ) G ( y ( n - k ) ) = 0 is studied under the assumption n = 0 n r ( n ) < . New oscillation criteria have been established which generalize some of the existing results in the literature.

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