一类二阶周期系数线性微分方程的解及有界性

The Solution of Linear Differential Equation of a Second Periodic Coefficientand Its Boundary Quality

讨论了当ｐ（ｔ），ｑ（ｔ）是以Ｔ为周期的周期函数，ｐ（ｔ）连续可微，且ｐ（ｔ）≥ｐ０≥０时，微分方程ｄｄｔ［ｐ（ｔ）ｘ］＋ｑ（ｔ）ｘ＝０的解的结构及有界性．

The structure and the bound of the solution to the differential equation ddt[p(t)·x·]+q(t)x=0 are discussed with T as the cycle of the periodic function, P(t) capable of being differentiated continuously, and P(t)≥P0≥0.