Positive periodic solutions for second order differential equations with impulsive effects
Crossref DOI link: https://doi.org/10.1186/s13661-015-0434-1
Published Online: 2015-09-28
Published Print: 2015-12
Update policy: https://doi.org/10.1007/springer_crossmark_policy
Wang, Weibing
Yang, Xuxin
Funding for this research was provided by:
Hunan Provincial Natural Science Foundation of China (2015JJ2068)
License valid from 2015-09-28