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On the Uniqueness of Best Non-decreasing Approximation in Orlicz Spaces

Functional Analysis 2026-04-29 v2

Abstract

Given an approximately continuous function ff in an Orlicz space LΦ([a,b]),L^\Phi([a,b]), for a suitable class of convex functions Φ,\Phi, we employ a characterization of the best monotone approximation set to establish its continuity, which in turn yields the uniqueness property for the best monotone approximation in LΦ([a,b]).L^\Phi([a,b]).

Keywords

Cite

@article{arxiv.2512.09210,
  title  = {On the Uniqueness of Best Non-decreasing Approximation in Orlicz Spaces},
  author = {Ana Benavente and Juan Costa Ponce and Sergio Favier},
  journal= {arXiv preprint arXiv:2512.09210},
  year   = {2026}
}