Volume 8, Issue 4 Yousef Gholami Kazem Ghanbari Coupled systems of fractional ∇-difference 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 Yousef Gholami Kazem Ghanbari Find more articles with the same keywords discrete fractional calculus boundary value problems fixed point theorem existence of solutions Find more articles with the same subject classes 34A08 39A12 34A12 34B15 39A10