TY - JOUR
T1 - Existence Results for Periodic Solutions of Nonautonomous Second-Order Differential Systems with $(q, p)$-Laplacian
AU - Erubay , Nurbek A.
AU - An , Tianqing
AU - Turhan , Dena
JO - Communications in Mathematical Research 
VL - 3
SP - 281
EP - 288
PY - 2021
DA - 2021/05
SN - 28
DO - http://doi.org/
UR - https://global-sci.org/intro/article_detail/cmr/19050.html
KW - periodic solution, $(q, p)$-Laplacian, critical point, saddle point theorem.
AB - <p style="text-align: justify;">In this paper, we consider the existence for periodic solutions of nonautonomous second-order differential systems with $(q, p)$-Laplacian by using the least
action principle and the minimax methods.</p>