rounding On Idempotent Elements of Semigroup of Increasing Monotonous Mappings Authors: Kryukova A. L. In some special classes of ordered topological spaces we characterize roundings as extreme points of set of non increasing isotonic mappings, and establish their stability in Hyers –Ulam sense. Read more about On Idempotent Elements of Semigroup of Increasing Monotonous Mappings
