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This paper has two purposes. First, we show that the classical Stein-Weiss inequality is true for p=1. Second, by considering a family of strong fractional integral operators whose kernels have singularity on every coordinate subspace, we…

Classical Analysis and ODEs · Mathematics 2025-08-08 Chuhan Sun , Zipeng Wang

We prove new Pitt inequalities for the Fourier transforms with radial and non-radial weights using weighted restriction inequalities for the Fourier transform on the sphere. We also prove new Riemann-Lebesgue estimates and versions of the…

Functional Analysis · Mathematics 2015-09-04 Laura De Carli , Dmitriy Gorbachev , Sergey Tikhonov

In this paper, by a concise and elementary approach, we sharpen and generalize Shafer's inequality for the arc sine function, and some known results are extended and generalized.

Classical Analysis and ODEs · Mathematics 2012-08-21 Feng Qi , Bai-Ni Guo

Considering Wirtinger's inequality for piece-wise equipartite functions we find a discrete version of this classical inequality. The main tool we use is the theorem of classification of isometries. Our approach provides a new elementary…

Classical Analysis and ODEs · Mathematics 2019-05-17 Julià Cufí , Agustí Reventós , Carlos J. Rodríguez

In this paper, new inequalities connected with the celebrated Steffensen's integral inequality are proved.

Classical Analysis and ODEs · Mathematics 2016-04-08 M. W. Alomari , S. Hussain , Z. Liu

Let G be a finite abelian group of order n. For a complex valued function f on G, let \fht denote the Fourier transform of f. The uncertainty inequality asserts that if f \neq 0 then |supp(f)| |supp(\fht)| \geq n. Answering a question of…

Combinatorics · Mathematics 2007-05-23 Roy Meshulam

We present a stability version of H\"older's inequality, incorporating an extra term that measures the deviation from equality. Applications are given.

Classical Analysis and ODEs · Mathematics 2009-10-30 J. M. Aldaz

This paper deals with the famous isoperimetric inequality. In a first part, we give some new functional form of the isoperimetric inequality, and in a second part, we give a quantitative form with a remainder term involving Wasserstein…

Functional Analysis · Mathematics 2017-01-04 Erik Thomas

The non-commutative Stein inequality asks whether there exists a constant $C_{p,q}$ depending only on $p, q$ such that \begin{equation*} \left\| \left(\sum_{n} |\mathcal{E}_{n} (x_n) |^{q}\right)^{\frac{1}{q}} \right\|_p \leq C_{p,q}…

Operator Algebras · Mathematics 2021-07-23 Ali Talebi , Mohammad Sal Moslehian

The Stein Variational Gradient Descent method is a variational inference method in statistics that has recently received a lot of attention. The method provides a deterministic approximation of the target distribution, by introducing a…

Analysis of PDEs · Mathematics 2024-12-16 José A. Carrillo , Jakub Skrzeczkowski , Jethro Warnett

Inequality measures are quantitative measures that take values in the unit interval, with a zero value characterizing perfect equality. Although originally proposed to measure economic inequalities, they can be applied to several other…

Physics and Society · Physics 2024-01-26 Paolo Giudici , Emanuela Raffinetti , Giuseppe Toscani

Young's integral inequality is reformulated with upper and lower bounds for the remainder. The new inequalities improve Young's integral inequality on all time scales, such that the case where equality holds becomes particularly transparent…

Classical Analysis and ODEs · Mathematics 2010-02-15 Douglas R. Anderson , Steven Noren , Brent Perreault

The goal of this review is to explain some recent results regarding generalizations of the Stein-Tomas (and Strichartz) inequalities to the context of trace ideals (Schatten spaces).

Analysis of PDEs · Mathematics 2016-09-28 Rupert L. Frank , Julien Sabin

We introduce a version of Stein's method for proving concentration and moment inequalities in problems with dependence. Simple illustrative examples from combinatorics, physics, and mathematical statistics are provided.

Probability · Mathematics 2007-05-23 Sourav Chatterjee

We establish existence of Stein kernels for probability measures on $\mathbb{R}^d$ satisfying a Poincar\'e inequality, and obtain bounds on the Stein discrepancy of such measures. Applications to quantitative central limit theorems are…

Probability · Mathematics 2018-03-09 Thomas A. Courtade , Max Fathi , Ashwin Pananjady

We present a general refinement of the Cauchy-Schwarz inequality over complete inner product spaces and show that it can be of interest for some statistical applications. This generalizes and simplifies previous results on the same subject.

Statistics Theory · Mathematics 2024-04-10 Sergio Scarlatti

Simple inequalities for some integrals involving the modified Struve function of the first kind $\mathbf{L}_{\nu}(x)$ are established. In most cases, these inequalities have best possible constant. We also deduce a tight double inequality,…

Classical Analysis and ODEs · Mathematics 2018-07-13 Robert E. Gaunt

This paper aims to characterize the function appearing in the weighted Hermite-Hadamard inequality. We provide improved inequalities for the weighted means as applications of the obtained results. Modifications of the weighted…

General Mathematics · Mathematics 2023-01-02 Shigeru Furuichi , Nicuşor Minculete , Hamid Reza Moradi

The notion of degree begins in field theory as the dimension of a field extension. In algebraic geometry, this idea reappears as the degree of a finite morphism, defined using the induced extension of function fields. For proper morphisms…

Algebraic Geometry · Mathematics 2026-03-26 Caucher Birkar

We give some new refinements and reverses Young inequalities in both additive-type and multiplicative-type for two positive numbers/operators. We show our advantages by comparing with known results. A few applications are also given. Some…

Functional Analysis · Mathematics 2018-03-26 Shigeru Furuichi , Hamid Reza Moradi