Multiplicity of positive periodic solutions for a second-order neutral
differential equation with repulsive singularity
- Jie Liu,
- Panpan Li,
- Zhibo Cheng
Abstract
By application of Leray-Schauder alternative principle and
Krasnoselskii's fixed point theorem on compression and expansion of
cones, existence results of positive periodic solutions are presented
for a second-order neutral differential equation with singularity of
repulsive type.
