Volume 6, Issue 4 Mohsen Khaleghi Moghadam Shapour Heidarkhani Existence of a non-trivial solution for nonlinear difference equations 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 Mohsen Khaleghi Moghadam Shapour Heidarkhani Find more articles with the same keywords discrete nonlinear boundary value problem non trivial solution variational methods critical point theory Find more articles with the same subject classes 39A10 34B15