Rényi--Sobolev Inequalities and Connections to Spectral Graph Theory

Fuente: arXiv
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Hauptverfasser: Yu, Lei, Wu, Hao
Format: Preprint
Veröffentlicht: 2023
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author Yu, Lei
Wu, Hao
author_facet Yu, Lei
Wu, Hao
contents In this paper, we generalize the log-Sobolev inequalities to Rényi--Sobolev inequalities by replacing the entropy with the two-parameter entropy, which is a generalized version of entropy and closely related to Rényi divergences. We derive the sharp nonlinear dimension-free version of this kind of inequalities. Interestingly, the resultant inequalities show a transition phenomenon depending on the parameters. We then connect Rényi--Sobolev inequalities to contractive and data-processing inequalities, concentration inequalities, and spectral graph theory. Our proofs in this paper are based on the information-theoretic characterization of the Rényi--Sobolev inequalities, as well as the method of types.
format Preprint
id arxiv_https___arxiv_org_abs_2306_12288
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Rényi--Sobolev Inequalities and Connections to Spectral Graph Theory
Yu, Lei
Wu, Hao
Probability
Information Theory
Combinatorics
Functional Analysis
In this paper, we generalize the log-Sobolev inequalities to Rényi--Sobolev inequalities by replacing the entropy with the two-parameter entropy, which is a generalized version of entropy and closely related to Rényi divergences. We derive the sharp nonlinear dimension-free version of this kind of inequalities. Interestingly, the resultant inequalities show a transition phenomenon depending on the parameters. We then connect Rényi--Sobolev inequalities to contractive and data-processing inequalities, concentration inequalities, and spectral graph theory. Our proofs in this paper are based on the information-theoretic characterization of the Rényi--Sobolev inequalities, as well as the method of types.
title Rényi--Sobolev Inequalities and Connections to Spectral Graph Theory
topic Probability
Information Theory
Combinatorics
Functional Analysis
url https://arxiv.org/abs/2306.12288