Stability of Order Preserving Transforms

Stability of Order Preserving Transforms. Geometric Aspects of Functional Analysis Lecture Notes in Mathematics Vol. 2050, 205-225 (2012) The purpose of this paper is to show stability of order preserving/reversing transforms on the class of non-negative convex functions in ${\mathbb R}^n$, and its subclass, the class of non-negative convex functions attaining $0$ at the origin (these are called "geometric convex functions"). We show that transforms that satisfy conditions which are weaker than order preserving transforms, are essentially close to the order preserving transforms on the mentioned structures.