Existence of an extremal function of Sobolev critical embedding with an $α$-homogeneous weight

Fuente: arXiv
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Auteurs principaux: Gurka, Petr, Hauer, Daniel
Format: Preprint
Publié: 2024
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author Gurka, Petr
Hauer, Daniel
author_facet Gurka, Petr
Hauer, Daniel
contents In our previous publication [{\em Calc. Var. Partial Differential Equations}, 60(1):Paper No. 16, 27, 2021], we delved into examining a critical Sobolev-type embedding of a Sobolev weighted space into an exponential weighted Orlicz space. We specifically determined the optimal Moser-type constant for this embedding, utilizing the monomial weight introduced by Cabré and Ros-Oton [{\em J. Differential Equations}, 255(11):4312--4336, 2013]. Towards the conclusion of that paper, we pledged to explore the existence of an extremal function within this framework. In this current work, we not only provide a positive affirmation to this inquiry but extend it to a broader range of weights known as \emph{$α$-homogeneous weights}.
format Preprint
id arxiv_https___arxiv_org_abs_2409_11193
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Existence of an extremal function of Sobolev critical embedding with an $α$-homogeneous weight
Gurka, Petr
Hauer, Daniel
Analysis of PDEs
46E35, 46E30, 35A23, 26D10
In our previous publication [{\em Calc. Var. Partial Differential Equations}, 60(1):Paper No. 16, 27, 2021], we delved into examining a critical Sobolev-type embedding of a Sobolev weighted space into an exponential weighted Orlicz space. We specifically determined the optimal Moser-type constant for this embedding, utilizing the monomial weight introduced by Cabré and Ros-Oton [{\em J. Differential Equations}, 255(11):4312--4336, 2013]. Towards the conclusion of that paper, we pledged to explore the existence of an extremal function within this framework. In this current work, we not only provide a positive affirmation to this inquiry but extend it to a broader range of weights known as \emph{$α$-homogeneous weights}.
title Existence of an extremal function of Sobolev critical embedding with an $α$-homogeneous weight
topic Analysis of PDEs
46E35, 46E30, 35A23, 26D10
url https://arxiv.org/abs/2409.11193