We obtain new sufficient conditions for the oscillation of all solutions of the neutral differential equation with variable coefficients where P, Q, R ∈ C ([ t 0 , ∞), R + ), r ∈ (0, ∞) and τ, σ ∈ [0, ∞). Our results improve several known results in papers by: Chuanxi and Ladas; Lalli and Zhang; Wei; Ruan.
No takes yet. Share an insight, caveat, or question.
Yu et al. (1992) studied this question.
Synapse has enriched one closely related paper. Consider it for comparative context: