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New results on periodic solutions for a kind of Rayleigh equation. (English) Zbl 1212.34124
Summary: The paper deals with the existence of periodic solutions for a class of non-autonomous time-delay Rayleigh equations. By means of a continuation theorem of the coincidence degree and a priori estimates, some new results on the existence of periodic solutions are established.

##### MSC:
 34C25 Periodic solutions to ordinary differential equations 47N20 Applications of operator theory to differential and integral equations
##### Keywords:
existence; periodic solution; a priori estimate
Full Text:
##### References:
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