International Journal of Mathematics and Mathematical Sciences
Volume 23 (2000), Issue 1, Pages 65-68
doi:10.1155/S0161171200001836

On existence of periodic solutions of the Rayleigh equation of retarded type

Genqiang Wang1 and Jurang Yan2

1Department of Mathematics, Hanshan Teacher's college, Guangdong, Chaozhou 521041, China
2Department of Mathematics, Shanxi University, Shanxi, Taiyuan 030006, China

Received 31 July 1998

Copyright © 2000 Genqiang Wang and Jurang Yan. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

In this paper, we give two sufficient conditions on the existence of periodic solutions of the non-autonomous Rayleigh equation of retarded type by using the coincidence degree theory.