Sharp uniform convexity and smoothness inequalities for trace norms
@article{Ball1994SharpUC, title={Sharp uniform convexity and smoothness inequalities for trace norms}, author={Keith Ball and Eric A. Carlen and Elliott H. Lieb}, journal={Inventiones mathematicae}, year={1994}, volume={115}, pages={463-482} }
SummaryWe prove several sharp inequalities specifying the uniform convexity and uniform smoothness properties of the Schatten trace idealsCp, which are the analogs of the Lebesgue spacesLp in non-commutative integration. The inequalities are all precise analogs of results which had been known inLp, but were only known inCp for special values ofp. In the course of our treatment of uniform convexity and smoothness inequalities forCp we obtain new and simple proofs of the known inequalities forLp.
281 Citations
Uniform convexity and smoothness, and their applications in Finsler geometry
- Mathematics
- 2009
We generalize the Alexandrov–Toponogov comparison theorems to Finsler manifolds. Under suitable upper (lower, resp.) bounds on the flag and tangent curvatures together with the 2-uniform convexity…
On some generalizations of $q$-uniform convexity inequalities (Nonlinear Analysis and Convex Analysis)
- Mathematics
- 2002
. This is an announcement of some recent results of the authors concerning the $q$ -uniform convexity and $p$ -uniform smoothness inequalities. We shall consider some generalizations of $p$ -uniform…
Mass Transport and Variants of the Logarithmic Sobolev Inequality
- Mathematics
- 2007
We develop the optimal transportation approach to modified log-Sobolev inequalities and to isoperimetric inequalities. Various sufficient conditions for such inequalities are given. Some of them are…
A remainder term for Hölder’s inequality for matrices and quantum entropy inequalities
- Mathematics
- 2016
We prove a sharp remainder term for Hölder’s inequality for traces as a consequence of the uniform convexity properties of the Schatten trace norms. We then show how this implies a novel family of…
Duality and Stability for Functional Inequalities
- Mathematics
- 2016
We develop a general framework for using duality to "transfer" stability results for a functional inequality to its dual inequality. As an application, we prove a stability bound for the…
On proximal mappings with Young functions in uniformly convex Banach spaces
- Mathematics
- 2017
It is well known in convex analysis that proximal mappings on Hilbert spaces are $1$-Lipschitz. In the present paper we show that proximal mappings on uniformly convex Banach spaces are uniformly…
Bellman VS Beurling: sharp estimates of uniform convexity for $L^p$ spaces
- Mathematics
- 2014
We obtain the classical Hanner inequalities by the Bellman function method. These inequalities give sharp estimates for the moduli of convexity of Lebesgue spaces. Easy ideas from differential…
Hypercontractivity and the logarithmic Sobolev inequality for the completely bounded norm
- Mathematics
- 2015
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…
A weighted anisotropic Sobolev type inequality and its applications to Hardy inequalities
- MathematicsMathematische Annalen
- 2020
In this paper we focus our attention on an embedding result for a weighted Sobolev space that involves as weight the distance function from the boundary taken with respect to a general smooth gauge…
Convexities of metric spaces
- Mathematics
- 2007
We introduce two kinds of the notion of convexity of a metric space, called k-convexity and L-convexity, as generalizations of the CAT(0)-property and of the nonpositively curved property in the…
References
SHOWING 1-10 OF 18 REFERENCES
Inequalities for traces on von Neumann algebras
- Mathematics
- 1972
A number of useful inequalities, which are known for the trace on a separable Hilbert space, are extended to traces on von Neumann algebras. In particular, we prove the Golden rule, Hölder…
The volume of convex bodies and Banach space geometry
- Mathematics
- 1989
Introduction 1. Notation and preliminary background 2. Gaussian variables. K-convexity 3. Ellipsoids 4. Dvoretzky's theorem 5. Entropy, approximation numbers, and Gaussian processes 6. Volume ratio…
Trace ideals and their applications
- Mathematics
- 1979
Preliminaries Calkin's theory of operator ideals and symmetrically normed ideals convergence theorems for $\mathcal J_P$ Trace, determinant, and Lidskii's theorem $f(x)g(-i\nabla)$ Fredholm theory…
A uniformly convex Banach space which contains no cp
- Mathematics
- 1974
There is a uniformly convex Banach space with unconditional basis which contains no subspace isomorphic to any lp (1 p ~). The space may be chosen either to have a symmetric basis, or so that it…
Optimal hypercontractivity for fermi fields and related non-commutative integration inequalities
- Mathematics, Physics
- 1992
Optimal hypercontractivity bounds for the fermion oscillator semigroup are obtained. These are the fermion analogs of the optimal hypercontractivity bounds for the boson oscillator semigroup obtained…
An inequality for Hilbert-Schmidt norm
- Mathematics
- 1981
AbstractFor the absolute value |C|=(C*C)1/2 and the Hilbert-Schmidt norm ∥C∥HS=(trC*C)1/2 of an operatorC, the following inequality is proved for any bounded linear operatorsA andB on a Hilbert space…
Uniform Convexity in Factor and Conjugate Spaces
- Mathematics
- 1944
In a recent series of short papers [2, 3, 41 I have been discussing the relationships of uniform convexity with certain other properties of normed vector spaces. In this paper I propose to discuss…