Global Lipschitz extension preserving the slope

Fuente: arXiv
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Main Authors: De Ponti, Nicolò, Somaglia, Jacopo
Format: Preprint
Published: 2025
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author De Ponti, Nicolò
Somaglia, Jacopo
author_facet De Ponti, Nicolò
Somaglia, Jacopo
contents We show that every real-valued Lipschitz function on a subset of a metric space can be extended to the whole space while preserving the slope and, up to a small error, the global Lipschitz constant. This answers a question posed by Di Marino, Gigli, and Pratelli, who established the analogous property for the asymptotic Lipschitz constant. We also prove the same result for the ascending slope and for the descending slope.
format Preprint
id arxiv_https___arxiv_org_abs_2507_20642
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Global Lipschitz extension preserving the slope
De Ponti, Nicolò
Somaglia, Jacopo
Metric Geometry
Functional Analysis
We show that every real-valued Lipschitz function on a subset of a metric space can be extended to the whole space while preserving the slope and, up to a small error, the global Lipschitz constant. This answers a question posed by Di Marino, Gigli, and Pratelli, who established the analogous property for the asymptotic Lipschitz constant. We also prove the same result for the ascending slope and for the descending slope.
title Global Lipschitz extension preserving the slope
topic Metric Geometry
Functional Analysis
url https://arxiv.org/abs/2507.20642