Ulam's Type Stability and Symmetry

Dear Colleagues,

This Issue is mainly devoted to investigations connected with the notion of stability, motivated by the well-known problem of S. Ulam, on the approximate homeomorphisms of metric groups, and related issues. Authors are invited to delivery their contributions on: Ulam’s type stability of functional equations and difference equations, differential equations, integral equations and linear operators, stability of set-valued and iterative functional equations, hyperstability and superstability of functional equations, various methods for proving Ulam’s type stability results, generalized Hyers–Ulam stability, stability on restricted domains and in various (metric, Banach, non-Archimedean, fuzzy, quasi-Banach, etc.) spaces, relations between Ulam’s type stability and fixed point results, its applications and connections to other areas of mathematics (e.g. functional analysis, approximation theory, differential equations, nonlinear analysis).

Prof. Dr. Liviu Cadariu
Prof. Dr. Dorian Popa
Prof. Dr. Ioan Rașa
Guest Editors

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