二阶线性系非振动的充要条件

摘要

研究周期系数二阶线性微分方程系非振动理论，给出周期系数二阶线性微分方程系非振动的充要条件，以及判别方程系非振动的充分条件。实例证明具有较好的实用性。%The theories of non-oscillation for second-order linear system with periodic coefficient are investigated.One necessary and sufficient condition and a sufficient criterion condition of non-oscillation for second-order linear system with periodic coefficient are given.Examples show that the obtained result has better practicability.