Survey on Cauchy functional equation in lattice environments
A purely fixed point approach to the Ulam-Hyers stability and hyperstability of a general functional equation
Birkhoff-James orthogonality reversing property and its stability
Optimal forward contract design for inventory: a value-of-waiting analysis
Ulam-Hyers stability of functional equations in quasi-b-Banach spaces
On stability of the functional equation of p-Wright affine functions in 2-Banach spaces
On solutions and stability of a functional equation arising from a queueing system
Approximation by cubic mappings
Solutions and stability of some functional equations on semigroups
Bi-additive s-functional inequalities and quasi multipliers on Banach-algebras
On Ulam stability of a generalization of the Fréchet functional equation on a restricted domain
Miscellanea about the stability of functional equations
Subdominant eigenvalue location and the robustness of Dividend Policy Irrelevance
A fixed point theorem in uniformizable spaces
Symmetry of Birkhoff-James orthogonality of bounded linear operators
Ulam stability of zero point equations
Cauchy difference operator in some Orlicz spaces
Semi-inner products and parapreseminorms on groups and a generalization of a theorem of Maksa and Volkmann on additive functions
Invariant means in stability theory
On geometry of Banach function modules
selected topics
On exact and approximate orthogonalities based on norm derivatives.