Oscillation criteria for advanced difference equations of second order

摘要

This paper involves a new improved method for establishing the oscillation of second order advanced difference equation of the formΔ(a(ℓ)Δυ(ℓ))+p(ℓ)υ(σ(ℓ))=0using the difference equationΔ(a(ℓ)Δυ(ℓ))+q(ℓ)υ(ℓ+1)=0.The results that we obtain are new and improve the existing criteria. We illustrate the results by various examples, at the end of the paper.