@Article{AAM-32-30,
author = {Qi , Yuan and Liu , Kun},
title = {Existence of Periodic Solutions of a Class of Second-Order Non-Autonomous Systems},
journal = {Annals of Applied Mathematics},
year = {2022},
volume = {32},
number = {1},
pages = {30--35},
abstract = {<p style="text-align: justify;">In this paper, we are concerned with the existence of periodic solutions of
second-order non-autonomous systems. By applying the Schauder’s fixed point
theorem and Miranda’s theorem, a new existence result of periodic solutions
is established.</p>},
issn = {},
doi = {https://doi.org/},
url = {http://global-sci.org/intro/article_detail/aam/20625.html}
}