靳祯, 王幼斌. OSCILLATING PROPERIES OF SOLUTIONS OF A CLASS OF DELAY DIFFERENTIAL EQUATION WITH PERIODICAL ARGUMENTS[J]. 1993, (2): 95-101.DOI:
关于一类时滞微分方程解的振动性
摘要
本文给出了某一时滞微分方程有振动解的充要条件和另一时滞微分方程有振动解的四个充分条件。
Abstract
The oscillating properties of the solution of functional differential equations x' (t)+p(t)x(t-τ)=0 (1) x'(t)+p(t)x(t-τ)+qx(t-k)=0 (2) are considered
the necessary and sufficient conditions are also given to ensure that all solu- tions of the equation (1) are oscillatory. Four sufficient conditions are also given to ensure that all solutions of the equation (2) are oscillatory.