“…Also, the GHF operator covers the fractional derivatives with non-singular kernels intrduced in [4,7,10], and it contains a weight function which can be used to write and solve several integral equations in an elegant way as presented in [2,5,9]. In addition, the GHF derivative can be applied to real-world problems as in [21][22][23] and [3,14,15,20]. On the other hand, the contributions of the present paper are the extension of the Gronwall inequality to fractional differential equations (FDEs) involving the GHF derivative, the discussion of the existence, the uniqueness as well as the Ulam-Hyers stability conditions of such FDEs, and also the generalization of the results related to a class of ordinary differential equations with Atangana-Baleanu fractional derivative investigated in [19].…”