关键词: 泛函微分方程, 阻尼项, 中立型, 振动性, 偶阶

Abstract: The author considered a class of even order nonlinear neutral functional differential equations with distributed delays and damping terms. By using the generalized Riccati transformation, H function method and differential inequality skills, the author established some sufficient conditions for oscillation of all solutions of the equation.

Key words: even order, oscillation, functional differential equation, damping term, neutral