【摘要】 研究了具有多个滞后量的一阶微分方程［ｘ（ｔ）－ｐｘ（ｔ－τ）］＋ｑｘ（ｔ）＋ｎｉ＝１ｐｉｘ（ｔ－τｉ）＝０，（１）其中ｐ、ｑ、τ、ｐｉ、τｉ（ｉ＝１，２，…，ｎ）为正常数；得出了方程振动的几个充分性判据和一个比较定理．更多还原

【Abstract】 In this paper,the following differential equation [x(t)-px(t-τ)]+qx(t)+ ni=1p ix(t-τ i)=0,(1) is studied,here p,q,τ,p i,τ i (i=1,2,…,n) are positive constants .Some sufficient criteria and a comparison thorem were obtain ed for oscillation of all solutions of equation (1).更多还原