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Related papers: Large sieve inequalities for quartic characters

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We establishe an affine Hardy-Littlewood-Sobolev inequality concerning two different functions which is stronger than the classical Hardy-Littlewood-Sobolev inequality. Furthermore, we also prove reverse inequalities for the new…

Functional Analysis · Mathematics 2025-08-05 Youjiang Lin , Jinghong Zhou , Jiaming Lan

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 revisit the large sieve for square moduli and obtain conditional improvements under hypotheses on higher additive energies of modular square roots.

Number Theory · Mathematics 2026-01-07 Stephan Baier

In this article, we prove a semi-continuity property for both conductor divisors and logarithmic conductor divisors for \'etale sheaves on higher relative dimensions in a geometric situation. It generalizes a semi-continuity result for…

Algebraic Geometry · Mathematics 2025-02-18 Haoyu Hu , Jean-Baptiste Teyssier

In this paper, we first prove two new identities for multiplicative differentiable functions. Based on this identity, we establish a midpoint and trapezoid type inequalities for multiplicatively convex functions. Applications to special…

Classical Analysis and ODEs · Mathematics 2022-08-02 Berhail Amel , Meftah Badreddine

For any given integer $k\geq 2$ we prove the existence of infinitely many $q$ and characters $ \chi\pmod q$ of order $k$, such that $|L(1,\chi)|\geq (e^{\gamma}+o(1))\log\log q$. We believe this bound to be best possible. When the order $k$…

Number Theory · Mathematics 2019-02-20 Youness Lamzouri

We present a refinement, by selfimprovement, of the arithmetic geometric inequality.

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

We provide a general framework for fractional Hardy inequalities. Our framework covers, for instance, fractional inequalities related to the Dirichlet forms of some L\'evy processes, and weighted fractional inequalities on irregular open…

Classical Analysis and ODEs · Mathematics 2021-11-18 Bartłomiej Dyda , Antti V. Vähäkangas

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

We establish two universal inequalities for Dirichlet eigenvalues of the Laplacian on a Euclidean convex domain.

Spectral Theory · Mathematics 2026-04-14 Kei Funano

We establish various Hardy-type inequalities for the Dirichlet Laplacian in perturbed periodically twisted tubes of non-circular cross-sections. We also state conjectures about the existence of such inequalities in more general regimes,…

Spectral Theory · Mathematics 2015-07-31 Philippe Briet , Hiba Hammedi , David Krejcirik

We obtain by simple elementary method, the character average of fourth power of Dirichlet L-series at unity.This result seems to be new.We also obtain character average of second power of Dirichlet L-series at unity,using the power series…

Number Theory · Mathematics 2008-09-12 Vivek V. Rane

We provide a proof of the sharp log-Sobolev inequality on a compact interval.

Functional Analysis · Mathematics 2016-01-20 Whan Ghang , Zane Martin , Steven Waruhiu

We establish an explicit inequality for the number of divisors of an integer $n$. It uses the size of $n$ and its number of distinct prime divisors.

Number Theory · Mathematics 2020-11-24 Patrick Letendre

As a continuation of the authors and Wakatsuki's previous paper [5], we study relations among Dirichlet series whose coefficients are class numbers of binary cubic forms. We show that for any integral models of the space of binary cubic…

Number Theory · Mathematics 2011-12-22 Yasuo Ohno , Takashi Taniguchi

After recalling basic features of the theory of symmetric quasi regular Dirichlet forms we show how by applying it to the stochastic quantization equation, with Gaussian space-time noise, one obtains weak solutions in a large invariant set.…

Probability · Mathematics 2018-06-18 Sergio Albeverio , Zhi Ming Ma , Michael Röckner

Using Fourier analysis, we derive Wirtinger-type inequalities of arbitrary high order. As applications, we prove various sharp geometric inequalities for closed curves on the Euclidean plane. In particular, we obtain both sharp lower and…

Differential Geometry · Mathematics 2020-08-18 Kwok-Kun Kwong , Hojoo Lee

We prove a set of inequalities that interpolate the Cauchy-Schwarz inequality and the triangle inequality. Every nondecreasing, convex function with a concave derivative induces such an inequality. They hold in any metric space that…

Metric Geometry · Mathematics 2025-01-06 Christof Schötz

We study large values of quadratic character sums with summation lengths exceeding the square root of the modulus. Assuming the Generalized Riemann Hypothesis, we obtain a new Omega result.

Number Theory · Mathematics 2026-01-01 Zikang Dong , Ruihua Wang , Weijia Wang , Hao Zhang

In this paper, we establish several inequalities of Dirichlet eigenvalues for Laplace operator $\Delta $ with any order on \emph{n}-dimensional Euclidean space. These inequalities are more general than known Yang's inequalities and contain…

Analysis of PDEs · Mathematics 2014-05-06 Na Huang , Pengcheng Niu