Differential Equations & Applications · Volume 3, Issue 3 Existence of two solutions for a Navier boundary value problem involving the p-biharmonic 03-25 Pages 399-414 DOI 10.7153/dea-03-25 Downloads Short PDF Full PDF PNG Authors Ying Shen Jihui Zhang Keywords p-biharmonic system Navier condition sign-changing weight function Nehari manifold Subject classes 35J40 35J67