Multiplicity of positive periodic solutions of Rayleigh equations with singularities
The existence of positive periodic solutions of the Rayleigh equations $ x''+f(x')+g(x) = e(t) $ with singularities is investigated in this paper. Based on the continuation theorem of coincidence degree theory and the method of upper and lower solutions, the multiple periodic solution...
Main Authors: | , , |
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Format: | Article |
Language: | English |
Published: |
AIMS Press
2021-04-01
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Series: | AIMS Mathematics |
Subjects: | |
Online Access: | http://www.aimspress.com/article/doi/10.3934/math.2021377?viewType=HTML |