Volume 4, Issue 4 Daniel C. Biles John S. Spraker Existence of positive solutions for a fourth order differential inclusion Downloads Abstract PDF Full article PDF DOI { copied = true; setTimeout(() => copied = false, 2000) })" :aria-label="copied ? 'DOI copied' : 'Copy DOI'" :title="copied ? 'Copied' : 'Copy DOI'" > Find all available articles from these authors Daniel C. Biles John S. Spraker Find more articles with the same keywords existence of solutions fourth order differential inclusion fixed point boundary value problem Green's function Find more articles with the same subject classes 34B18 34A34 34A36 34A60 34B15 34B27 47H10