Bull. Korean Math. Soc. 2017; 54(1): 125-144
Online first article January 12, 2017 Printed January 31, 2017
https://doi.org/10.4134/BKMS.b150975
Copyright © The Korean Mathematical Society.
Chang-Mu Chu, Chun-Yu Lei, Jiao-Jiao Sun, and Hong-Min Suo
Guizhou Minzu University, Guizhou Minzu University, Guizhou Minzu University, Guizhou Minzu University
Three nontrivial nonnegative solutions for some critical quasilinear elliptic systems with lower-order negative perturbations are obtained by using the Ekeland's variational principle and the mountain pass theorem.
Keywords: quasilinear elliptic systems, critical Sobolev exponent, sublinear perturbations, Ekeland's variational principle, mountain pass theorem
MSC numbers: 35J50, 35J55, 58J20
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