Nonoscillation and oscillation criteria for class of higher - order difference equations involving generalized difference operator

Year 2022, Volume: 71 Issue: 1, 188 - 203, 30.03.2022

Aysun Nar , Yaşar Bolat , Serbun Ufuk Değer , Murat Gevgeşoğlu

https://doi.org/10.31801/cfsuasmas.904804

Abstract

In this paper, sufficient conditions are obtained for nonoscillation/oscillation of all solutions of a class of higher-order difference equations involving the generalized difference operator of the form

$\Delta _{a}^{k}(p_{n}\Delta _{a}^{2}y_{n})=f(n,y_{n},\Delta_{a}y_{n},\Delta _{a}^{2}y_{n},...,\Delta _{a}^{k+1}y_{n}),$

where $\Delta _{a}$ is generalized difference operator which is defined as $\Delta _{a}y_{n}=y_{n+1}-ay_{n}, a\neq{0}.$

Keywords

Difference equations , generalized difference operator , oscillation , nonoscillation

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