Uniform extension of definable $C^{m,ω}$-Whitney jets

Fuente: arXiv
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Autori principali: Parusiński, Adam, Rainer, Armin
Natura: Preprint
Pubblicazione: 2023
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author Parusiński, Adam
Rainer, Armin
author_facet Parusiński, Adam
Rainer, Armin
contents We show that definable Whitney jets of class $C^{m,ω}$, where $m$ is a nonnegative integer and $ω$ is a modulus of continuity, are the restrictions of definable $C^{m,ω}$-functions; "definable" refers to an arbitrary given o-minimal expansion of the real field. This is true in a uniform way: any definable bounded family of Whitney jets of class $C^{m,ω}$ extends to a definable bounded family of $C^{m,ω}$-functions. We also discuss a uniform $C^m$-version and how the extension depends on the modulus of continuity.
format Preprint
id arxiv_https___arxiv_org_abs_2306_09156
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Uniform extension of definable $C^{m,ω}$-Whitney jets
Parusiński, Adam
Rainer, Armin
Logic
Algebraic Geometry
Classical Analysis and ODEs
Functional Analysis
We show that definable Whitney jets of class $C^{m,ω}$, where $m$ is a nonnegative integer and $ω$ is a modulus of continuity, are the restrictions of definable $C^{m,ω}$-functions; "definable" refers to an arbitrary given o-minimal expansion of the real field. This is true in a uniform way: any definable bounded family of Whitney jets of class $C^{m,ω}$ extends to a definable bounded family of $C^{m,ω}$-functions. We also discuss a uniform $C^m$-version and how the extension depends on the modulus of continuity.
title Uniform extension of definable $C^{m,ω}$-Whitney jets
topic Logic
Algebraic Geometry
Classical Analysis and ODEs
Functional Analysis
url https://arxiv.org/abs/2306.09156