Chinese Quarterly Journal of Mathematics ›› 1991, Vol. 6 ›› Issue (4): 81-85.
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Abstract: 本文应用相平面分析方法研究广泛一类二维非线性系统的周期解簇的存在性,所得结果包含了G.Villari和F.Zanolin的定理。
曹登庆. 一类非线性系统的周期解[J]. Chinese Quarterly Journal of Mathematics, 1991, 6(4): 81-85.
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