Multiple Periodic Solutions to a Class of Second-Order Functional Differential Equations of Mixed Type
Multiple Periodic Solutions to a Class of Second-Order Functional Differential Equations of Mixed Type
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发表时间：
2006
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通讯作者：
X. Shu;Y. Xu
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作者：
X. Shu;Y. Xu
利用变分结构和Z2群指标理论，得到了一类二阶混合型泛函微分方程x“(t-τ)+f(t，x(T)，x(t-τ)，x(t-2τ))=0和x”(t-r)+λF1(t，x(T)，x(t-τ)，x(t-τ))=x(t-τ)的多重周期解.
By means of variational structure and Z2 group index theory, we obtain multiple periodic solutions to a class of second-order functional differential equations of mixed typex"(t-τ)+f(t,x(t),x(t-τ),x(t-2τ))=0andx"(t-r)+λf1(t,x(t),x(t-τ),x(t-2τ))=x(t-τ)