PDF(404 KB)
Existence of Periodic Solutions for Nonlinear nth Order Ordinary Differential Equations
Bing Wen LIU(1), Li Hong HUANG
Acta Mathematica Sinica, Chinese Series ›› 2004, Vol. 47 ›› Issue (6) : 1133-1140.
PDF(404 KB)
PDF(404 KB)
Existence of Periodic Solutions for Nonlinear nth Order Ordinary Differential Equations
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