文件名称：ΦHппOB定理的推广 (1982年)
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更新时间：2024-06-04 05:20:56
自然科学 论文
This paper generalizes Filippov' s Theorem which is considered to be one of 0the most representive theorems dealing with the existence of the limit cycles of Lienard' s equaton there exists a such that for but F1(z)#F,(z) for and there exist two definite