Abstract
In this article, we consider the singular higher order delay differential equations. Under certain assumptions, some new criteria for guaranteeing the existence of positive periodic solutions are presented. Moreover, two examples are provided to demonstrate the effectiveness and applications of the main results.
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Kong, F., Lu, S. & Luo, Z. Positive Periodic Solutions for Singular Higher Order Delay Differential Equations. Results Math 72, 71–86 (2017). https://doi.org/10.1007/s00025-016-0647-3
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DOI: https://doi.org/10.1007/s00025-016-0647-3