Differential Equations & Applications · Volume 8, Issue 4 Coupled systems of fractional ∇-difference boundary value problems 08-26 Pages 459-470 DOI 10.7153/dea-08-26 Downloads Short PDF Full PDF PNG Authors Yousef Gholami Kazem Ghanbari Keywords discrete fractional calculus boundary value problems fixed point theorem existence of solutions Subject classes 34A08 39A12 34A12 34B15 39A10