[Sur des inégalités d’interpolation Gaussiennes]
This paper is devoted to Gaussian interpolation inequalities with endpoint cases corresponding to the Gaussian Poincaré and the logarithmic Sobolev inequalities, seen as limits in large dimensions of Gagliardo–Nirenberg–Sobolev inequalities on spheres. Entropy methods are investigated using not only heat flow techniques but also nonlinear diffusion equations as on spheres. A new stability result is established for the Gaussian measure, which is directly inspired by recent results for spheres.
Cet article est consacré à des inégalités d’interpolation Gaussiennes, avec comme cas extrêmes l’inégalité de Poincaré Gaussienne et l’inégalité de Sobolev logarithmique, vues comme limites en grandes dimensions des inégalités de Gagliardo–Nirenberg–Sobolev sur les sphères. Les méthodes d’entropie sont abordées en utilisant non seulement des techniques basée sur l’équation de la chaleur mais aussi sur des équations de diffusion non-linéaires, comme pour les sphères. Un nouveau résultat de stabilité est établi pour les mesures Gaussiennes, qui s’inspire directement de résultats récents sur les sphères.
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Keywords: logarithmic Sobolev inequality, Gagliardo–Nirenberg–Sobolev inequalities, Gaussian Poincaré inequality, sphere, spectral decomposition, entropy methods, Ornstein–Uhlenbeck operator, nonlinear diffusions, improved inequalities, stability
Brigati, Giovanni  1 ; Dolbeault, Jean  1 ; Simonov, Nikita  2
CC-BY 4.0
@article{CRMATH_2024__362_G1_21_0,
author = {Brigati, Giovanni and Dolbeault, Jean and Simonov, Nikita},
title = {On {Gaussian} interpolation inequalities},
journal = {Comptes Rendus. Math\'ematique},
pages = {21--44},
year = {2024},
publisher = {Acad\'emie des sciences, Paris},
volume = {362},
number = {G1},
doi = {10.5802/crmath.488},
language = {en},
url = {https://www.numdam.org/articles/10.5802/crmath.488/}
}
TY - JOUR AU - Brigati, Giovanni AU - Dolbeault, Jean AU - Simonov, Nikita TI - On Gaussian interpolation inequalities JO - Comptes Rendus. Mathématique PY - 2024 SP - 21 EP - 44 VL - 362 IS - G1 PB - Académie des sciences, Paris UR - https://www.numdam.org/articles/10.5802/crmath.488/ DO - 10.5802/crmath.488 LA - en ID - CRMATH_2024__362_G1_21_0 ER -
%0 Journal Article %A Brigati, Giovanni %A Dolbeault, Jean %A Simonov, Nikita %T On Gaussian interpolation inequalities %J Comptes Rendus. Mathématique %D 2024 %P 21-44 %V 362 %N G1 %I Académie des sciences, Paris %U https://www.numdam.org/articles/10.5802/crmath.488/ %R 10.5802/crmath.488 %G en %F CRMATH_2024__362_G1_21_0
Brigati, Giovanni; Dolbeault, Jean; Simonov, Nikita. On Gaussian interpolation inequalities. Comptes Rendus. Mathématique, Tome 362 (2024) no. G1, pp. 21-44. doi: 10.5802/crmath.488
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