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We establish a stable form of the general Euclidean Brascamp-Lieb inequality in all cases in which the Lebesgue exponents are strictly between 1 and 2, asserting that all near-extremizers are nearly Gaussian.

Classical Analysis and ODEs · Mathematics 2026-01-12 Jonathan Bennett , Michael Christ

The Brascamp-Lieb inequality in harmonic analysis was proved by Brascamp and Lieb in the rank one case in 1976, and by Lieb in 1990. It says that in a certain inequality, the optimal constant can be determined by checking the inequality for…

Metric Geometry · Mathematics 2024-12-19 Károly J. Böröczky

We study the Brascamp--Lieb inequalities on locally compact nonabelian groups and the Brascamp--Lieb constants $\mathbf{BL}(G, \boldsymbol{\sigma}, \boldsymbol{p})$ associated to a Brascamp--Lieb datum: locally compact groups $G$ and $G_j$,…

Group Theory · Mathematics 2026-02-12 Michael G. Cowling , Ji Li , Chong-Wei Liang

The entropy power inequality (EPI) and the Brascamp-Lieb inequality (BLI) are fundamental inequalities concerning the differential entropies of linear transformations of random vectors. The EPI provides lower bounds for the differential…

Information Theory · Computer Science 2021-09-28 Venkat Anantharam , Varun Jog , Chandra Nair

We deal with the following question: What is the proper way to introduce symmetric difference in orthomodular lattices? Imposing two natural conditions on this operation, six possibilities remain: the two (commutative) normal forms of the…

Rings and Algebras · Mathematics 2007-05-23 Gerhard Dorfer

We consider regularized Brascamp-Lieb inequalities using the theory of optimal transportation, more precisely an anisotropic version of Caffarelli's contraction theorem. Furthermore, we provide a full picture concerning the issues of…

Analysis of PDEs · Mathematics 2026-05-12 Bader Ammari

In this paper, we derive from the supersymmetry of the Witten Laplacian Brascamp-Lieb's type inequalities for general differential forms on compact Riemannian manifolds with boundary. In addition to the supersymmetry, our results…

Spectral Theory · Mathematics 2017-02-23 Dorian Le Peutrec

We survey commutative and non-commutative analogs of uniform algebras in the Archimedean settings and also offer some non-Archimedean examples. Constraints on the development of non-complex uniform algebras are also discussed.

Functional Analysis · Mathematics 2010-10-22 Jonathan Mason

Inspired by the commutator and anticommutator algebras derived from algebras graded by groups, we introduce noncommutatively graded algebras. We generalize various classical graded results to the noncommutatively graded situation concerning…

Rings and Algebras · Mathematics 2017-11-01 Patrik Nystedt

The prime analog of the Kepler-Bouwkamp constant is evaluated.

History and Overview · Mathematics 2007-05-23 Adrian R. Kitson

We provide a number of new quantitative versions of Helly's theorem. For example, we show that for every family $\{P_i:i\in I\}$ of closed half-spaces $$P_i=\{x\in {\mathbb R}^n:\langle x,w_i\rangle \leq 1\}$$ in ${\mathbb R}^n$ such that…

Functional Analysis · Mathematics 2015-09-22 Silouanos Brazitikos

In this article, we give a complex-geometric proof of the Alexandrov-Fenchel inequality without using toric compactifications. The idea is to use the Legendre transform and develop the Brascamp-Lieb proof of the Pr\'ekopa theorem. New…

Complex Variables · Mathematics 2018-02-13 Xu Wang

We investigate what we term "generalized sup-convolutions". We show that functional inequalities that enjoy an interpretation as sup-convolution inequalities can be deduced from the special case of indicator functions corresponding to a…

Functional Analysis · Mathematics 2025-10-07 Andreas Malliaris , James Melbourne , Cyril Roberto , Michael Roysdon

We analyse an analog of the entropy-power inequality for the weighted entropy.

Information Theory · Computer Science 2015-03-10 Yuri Suhov , Salimeh Yasaei Sekeh , Mark Kelbert

We show that the Brascamp-Lieb (BL) constant BL(-,p) is a semi-algebraic function on the set of feasible data. Consequently, it is algebraic in the sense that it satisfies a polynomial relation of the form P(V, BL(V,p))=0 for a non-zero…

Representation Theory · Mathematics 2026-03-11 Calin Chindris , Harm Derksen

We propose algebraic criteria that yield sharp H\"{o}lder types of inequalities for the product of functions of Gaussian random vectors with arbitrary covariance structure. While our lower inequality appears to be new, we prove that the…

Probability · Mathematics 2013-10-08 Wei-Kuo Chen , Nikos Dafnis , Grigoris Paouris

The aim of the paper is twofold. First, we introduce analogs of (partial) derivatives on certain Noncommutative algebras, including some enveloping algebras and their "braided counterparts", namely, the so-called modified Reflection…

Quantum Algebra · Mathematics 2015-02-16 D. Gurevich , P. Saponov

Three equivalent characterizations of probability measures through independence criteria are given. These characterizations lead to a family of Brascamp--Lieb-type inequalities for relative entropy, determine equilibrium states and sharp…

Probability · Mathematics 2024-03-12 Thomas A. Courtade

We give a new approach, inspired by H\"ormander's $L^2$-method, to weighted variance inequalities which extend results obtained by Bobkov and Ledoux. It provides in particular a local proof of the dimensional functional forms of the…

Functional Analysis · Mathematics 2013-11-06 Van Hoang Nguyen

In this paper, we compute uncertainty relations for non-commutative space and obtain a better lower bound than the standard one obtained from Heisenberg's uncertainty relation. We also derive the reverse uncertainty relation for product and…

Quantum Physics · Physics 2019-08-20 Pritam Chattopadhyay , Ayan Mitra , Goutam Paul