Periodic solutions for a neutral differential equation with variable parameter

Bo Du, Jianxin Zhao, Weigao Ge

Abstract


By means of Mawhin's continuation theorem, we
present some sufficient conditions which guarantee the existence of
at least one $T$-periodic solution for a first-order neutral
equation with variable parameter. The interest is that the
coefficient $c$ is not a constant, which is different from the
corresponding ones of past work.

Keywords


Neutral; variable parameter; periodic solution; Mawhin's continuation theorem

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