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Related papers: On Logarithmic Sobolev Inequality for the Noncommu…

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In this paper, we prove a version of the logarithmic Sobolev inequality of fractional order on noncommutative $n$-tori for any dimension $n\geq 2$.

Operator Algebras · Mathematics 2023-07-04 Gihyun Lee

In this paper we present our results on the logarithmic Sobolev inequality along the Ricci flow in dimension 2.

Differential Geometry · Mathematics 2007-08-16 Rugang Ye

We give here a simple proof of weighted logarithmic Sobolev inequality, for example for Cauchy type measures, with optimal weight, sharpening results of Bobkov-Ledoux. Some consequences are also discussed.

Probability · Mathematics 2010-07-26 Patrick Cattiaux , Arnaud Guillin , Liming Wu

We provide a new characterization of the logarithmic Sobolev inequality.

Analysis of PDEs · Mathematics 2017-02-16 Hoai-Minh Nguyen , Marco Squassina

We prove a sharp moment inequality for a log-concave or a log-convex function, on Gaussian random vectors. As an application we take a stability result for the classical logarithmic Sobolev inequality of L. Gross in the case where the…

Probability · Mathematics 2016-10-17 Nikos Dafnis , Grigoris Paouris

We prove Kolmogorov's law of the iterated logarithm for noncommutative martingales. The commutative case was due to Stout. The key ingredient is an exponential inequality proved recently by Junge and the author.

Probability · Mathematics 2014-01-21 Qiang Zeng

In a 2013 paper, the author showed that the convolution of a compactly supported measure on the real line with a Gaussian measure satisfies a logarithmic Sobolev inequality (LSI). In a 2014 paper, the author gave bounds for the optimal…

Functional Analysis · Mathematics 2014-12-05 David Zimmermann

It is proved that a maximal abelian subalgebra of the noncommutative torus commutes with the Laplace operator on a complex torus. As a corollary, one gets an analog of the Poisson summation formula for noncommutative tori.

Operator Algebras · Mathematics 2019-10-22 Igor Nikolaev

We prove an intrinsic equivalence between strong hypercontractivity and a strong logarithmic Sobolev inequality for the cone of logarithmically subharmonic functions. We introduce a new large class of measures, Euclidean regular and…

Functional Analysis · Mathematics 2019-08-15 Piotr Graczyk , Todd Kemp , Jean-Jacques Loeb

In this work, we study the Sobolev inequality on noncommutative Euclidean spaces. As a simple consequence, we obtain the Gagliardo-Nirenberg type inequality and as its application we show global well-posedness of nonlinear PDEs in the…

Analysis of PDEs · Mathematics 2025-08-05 Michael Ruzhansky , Serikbol Shaimardan , Kanat Tulenov

We give a new proof of Aubin's improvement of the Sobolev inequality on $\mathbb{S}^{n}$ under the vanishing of first order moments of the area element and generalize it to higher order moments case. By careful study of an extremal problem…

Classical Analysis and ODEs · Mathematics 2021-02-26 Fengbo Hang , Xiaodong Wang

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 develop the notions of hypercontractivity (HC) and the log-Sobolev (LS) inequality for completely bounded norms of one-parameter semigroups of super-operators acting on matrix algebras. We prove the equivalence of the completely bounded…

Mathematical Physics · Physics 2015-11-09 Salman Beigi , Christopher King

We prove analogues of the Riemann-Roch Theorem and the Hodge Theorem for noncommutative tori (of any dimension) equipped with complex structures, and discuss implications for the question of how to distinguish "noncommutative abelian…

Operator Algebras · Mathematics 2023-05-19 Varghese Mathai , Jonathan Rosenberg

We derive a sharp Logarithmic Sobolev inequality with monomial weights starting from a sharp Sobolev inequality with monomial weights. Several related inequalities such as Shannon type and Heisenberg's uncertain type are also derived. A…

Analysis of PDEs · Mathematics 2019-07-09 Filomena Feo , Futoshi Takahashi

In this paper, we prove a logarithmic Sobolev inequality for closed submanifolds with constant length of mean curvature vector in a manifold with nonnegative sectional curvature.

Differential Geometry · Mathematics 2024-08-20 Doanh Pham

We introduce an analog of the $L$-function for noncommutative tori. It is proved that such a function coincides with the Hasse-Weil $L$-function of an elliptic curve with complex multiplication. As a corollary, one gets a localization…

Operator Algebras · Mathematics 2023-06-29 Igor V. Nikolaev

Using the ideas of Deninger, we prove that the Artin $L$-functions coincide with such of the noncommutative tori. This result can be viewed as the Langlands reciprocity for noncommutative tori.

Number Theory · Mathematics 2024-01-01 Igor V. Nikolaev

In this paper we show a number of logarithmic inequalities on several classes of Lie groups: log-Sobolev inequalities on general Lie groups, log-Sobolev (weighted and unweighted), log-Gagliardo-Nirenberg and log-Caffarelli-Kohn-Nirenberg…

Analysis of PDEs · Mathematics 2024-04-02 Marianna Chatzakou , Aidyn Kassymov , Michael Ruzhansky

In this paper we give a proof of the Gauss-Bonnet theorem of Connes and Tretkoff for noncommutative two tori $\mathbb{T}_{\theta}^2$ equipped with an arbitrary translation invariant complex structure. More precisely, we show that for any…

Operator Algebras · Mathematics 2011-04-18 Farzad Fathizadeh , Masoud Khalkhali
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