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
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.