Periodic solutions for second order singular damped differential equations |
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| Authors: | Jifeng Chu Ning Fan Pedro J Torres |
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| Institution: | 1. Department of Mathematics, College of Science, Hohai University, Nanjing 210098, China;2. Departamento de Matemática Aplicada, Universidad de Granada, Granada 18071, Spain |
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| Abstract: | We study the existence of positive periodic solutions for second order singular damped differential equations by combining the analysis of the sign of Green?s functions for the linear damped equation, together with a nonlinear alternative principle of Leray–Schauder. Recent results in the literature are generalized and significantly improved. |
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