Volume 1, Issue 4 Ravi P. Agarwal Fu-Hsiang Wong Upper and lower solutions method for higher order discrete boundary value problems 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 Ravi P. Agarwal Fu-Hsiang Wong Find more articles with the same keywords higher order discrete boundary value problem Green's function upper and lower solutions Find more articles with the same subject classes 34B15 39A10