List of Articles 𝜓-derivation Open Access Article Abstract Page Full-Text 1 - ψ -amenability of some Banach-algebras Mohsen Ziamanesh Behrouz shojaee Open Access Article Abstract Page Full-Text 2 - Analytic Solution of Fuzzy Second Order Differential Equations under H-Derivation Laleh Hooshangian Open Access Article Abstract Page Full-Text 3 - Stability and hyperstability of orthogonally ring $*$-$n$-derivations and orthogonally ring $*$-$n$-homomorphisms on $C^*$-algebras R. Gholami Gh. Askari M. Eshaghi Gordji Open Access Article Abstract Page Full-Text 4 - A fixed point method for proving the stability of ring $(\alpha, \beta, \gamma)$-derivations in $2$-Banach algebras M. Eshaghi Gordji S. Abbaszadeh Open Access Article Abstract Page Full-Text 5 - On the superstability of a special derivation M. Hassani E. Keyhani