从退化的双同宿环附近分支出周期解
龙斌,刘莹
Periodic Solutions Bifurcated from a Degenerate Double Homoclinic Loop
Bin Long,Ying Liu
图2
双同宿环附近的周期轨
$ x(t),\tilde{x}(t),x^{*}(t) $
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