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Related papers: Stability results for logarithmic Sobolev and Gagl…

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The purpose of this work is to establish a quantitative and constructive stability result for a class of subcritical Gagliardo-Nirenberg-Sobolev inequalities which interpolates between the logarithmic Sobolev inequality and the standard…

Analysis of PDEs · Mathematics 2025-02-07 Matteo Bonforte , Jean Dolbeault , Bruno Nazaret , Nikita Simonov

In this paper, we review recent results on stability and instability in logarithmic Sobolev inequalities, with a particular emphasis on strong norms. We consider several versions of these inequalities on the Euclidean space, for the…

Analysis of PDEs · Mathematics 2025-11-14 Giovanni Brigati , Jean Dolbeault , Nikita Simonov

This paper is devoted to stability results for the Gaussian logarithmic Sobolev inequality, with explicit stability constants.

Analysis of PDEs · Mathematics 2024-07-11 Giovanni Brigati , Jean Dolbeault , Nikita Simonov

We consider Gagliardo-Nirenberg inequalities on the sphere which interpolate between the Poincar\'e inequality and the Sobolev inequality, and include the logarithmic Sobolev inequality as a special case. We establish explicit stability…

Analysis of PDEs · Mathematics 2024-01-24 Giovanni Brigati , Jean Dolbeault , Nikita Simonov

This paper collects results concerning global rates and large time asymptotics of a fractional fast diffusion on the Euclidean space, which is deeply related with a family of fractional Gagliardo-Nirenberg-Sobolev inequalities. Generically,…

Analysis of PDEs · Mathematics 2016-11-30 Jean Dolbeault , An Zhang

We prove a sharp quantitative version for the stability of the Sobolev inequality with explicit constants. Moreover, the constants have the correct behavior in the limit of large dimensions, which allows us to deduce an optimal quantitative…

Analysis of PDEs · Mathematics 2025-04-02 Jean Dolbeault , Maria J. Esteban , Alessio Figalli , Rupert L. Frank , Michael Loss

We consider a family of Gagliardo-Nirenberg-Sobolev interpolation inequalities which interpolate between Sobolev's inequality and the logarithmic Sobolev inequality, with optimal constants. The difference of the two terms in the…

Analysis of PDEs · Mathematics 2012-07-12 Jean Dolbeault , Giuseppe Toscani

In this paper, we establish several improved Caffarelli-Kohn-Nirenberg and Hardy-type inequalities. Our main results are divided into two parts. In the first part, we consider the following Caffarelli-Kohn-Nirenberg inequality:…

Analysis of PDEs · Mathematics 2026-01-23 Yuxuan Zhou , Wenming Zou

We prove logarithmic Sobolev inequalities on higher-dimensional bounded smooth domains based on novel Gagliardo-Nirenberg type interpolation inequalities. Moreover, we use them to address the long-time dynamics of some nonlinear nonlocal…

Analysis of PDEs · Mathematics 2024-02-29 Elie Abdo , Fizay-Noah Lee

This paper is devoted to Gaussian interpolation inequalities with endpoint cases corresponding to the Gaussian Poincar\'e and the logarithmic Sobolev inequalities, seen as limits in large dimensions of Gagliardo-Nirenberg-Sobolev…

Analysis of PDEs · Mathematics 2023-02-27 Giovanni Brigati , Jean Dolbeault , Nikita Simonov

We show that there are no general stability results for the logarithmic Sobolev inequality in terms of the Wasserstein distances and $L^{p}(d\gamma)$ distance for $p>1$. To this end, we construct a sequence of centered probability measures…

Analysis of PDEs · Mathematics 2022-04-18 Daesung Kim

This document comes as supplementary material of the paper Stability in Gagliardo-Nirenberg inequalities by the same authors. It is intended to state a number of classical or elementary statements concerning constants and inequalities for…

Analysis of PDEs · Mathematics 2020-07-08 Matteo Bonforte , Jean Dolbeault , Bruno Nazaret , Nikita Simonov

In this paper, we establish the sharp fractional subelliptic Sobolev inequalities and Gagliardo-Nirenberg inequalities on stratified Lie groups. The best constants are given in terms of a ground state solution of a fractional subelliptic…

Analysis of PDEs · Mathematics 2023-06-14 Sekhar Ghosh , Vishvesh Kumar , Michael Ruzhansky

We establish new Euclidean Sobolev logarithmic inequalities in the framework of fractional Sobolev spaces and their weighted version. Our approach relies on a interpolation inequality, which can be viewed as a fractional…

Analysis of PDEs · Mathematics 2026-02-11 Vivek Sahu

Obtaining explicit stability estimates in classical functional inequalities like the Sobolev inequality has been an essentially open question for 30 years, after the celebrated but non-constructive result of G. Bianchi and H. Egnell in…

Analysis of PDEs · Mathematics 2025-09-23 Jean Dolbeault

In a recent paper, E. Carlen and A. Figalli prove a stability estimate - also known as a quantitative inequality - for a sharp Gagliardo-Nirenberg inequality and use this result to solve a Keller-Segal Equation. The Gagliardo-Nirenberg…

Functional Analysis · Mathematics 2016-10-24 Francis Seuffert

Using a dimension reduction argument and a stability version of the weighted Sobolev inequality on half space recently proved by Seuffert, we establish, in this paper, some stability estimates (or quantitative estimates) for a family of the…

Functional Analysis · Mathematics 2017-02-06 Van Hoang Nguyen

We prove stability estimates for the Bakry-Emery bound on Poincar\'e and logarithmic Sobolev constants of uniformly log-concave measures. In particular, we improve the quantitative bound in a result of De Philippis and Figalli asserting…

Functional Analysis · Mathematics 2018-09-17 Thomas A. Courtade , Max Fathi

We consider a family of Caffarelli-Kohn-Nirenberg interpolation inequalities and weighted logarithmic Hardy inequalities which have been obtained recently as a limit case of the first ones. We discuss the ranges of the parameters for which…

Analysis of PDEs · Mathematics 2012-12-06 Jean Dolbeault , Maria J. Esteban

We consider two methods to establish log-Sobolev inequalities for the invariant measure of a diffusion process when its density is not explicit and the curvature is not positive everywhere. In the first approach, based on the Holley-Stroock…

Probability · Mathematics 2025-03-25 Pierre Monmarché , Songbo Wang
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