Differential Equations & Applications · Volume 4, Issue 4 Existence of positive solutions for a fourth order differential inclusion 04-31 Pages 539-546 DOI 10.7153/dea-04-31 Downloads Short PDF Full PDF PNG Authors Daniel C. Biles John S. Spraker Keywords existence of solutions fourth order differential inclusion fixed point boundary value problem Green's function Subject classes 34B18 34A34 34A36 34A60 34B15 34B27 47H10