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In this article, by combining appropriate refined Bohr's inequalities with some techniques concerning bounded analytic functions defined in the unit disk, we generalize and improve several Bohr type inequalities for such functions.

Complex Variables · Mathematics 2020-06-17 Gang Liu , Zhihong Liu , Saminathan Ponnusamy

There is a mathematical error in the first version of this paper. A new corrected version will be posted when the error is fixed, possibly with a modified title.

Probability · Mathematics 2009-01-07 Carl Graham

Characterization results for equality cases and for rigidity of equality cases in Steiner's perimeter inequality are presented. (By rigidity, we mean the situation when all equality cases are vertical translations of the Steiner's symmetral…

Analysis of PDEs · Mathematics 2016-01-20 Filippo Cagnetti , Maria Colombo , Guido De Philippis , Francesco Maggi

In the article, some Huygens and Wilker type inequalities involving trigonometric and hyperbolic functions are refined and sharpened.

Classical Analysis and ODEs · Mathematics 2014-09-05 Wei-Dong Jiang , Qiu-Ming Luo , Feng Qi

In this paper, we find some new sharp bounds for $\left(\sin x\right) /x$, which unify and refine Jordan, Adamovi\'{c}-Mitrinovi\'{c}and and Cusa's inequalities. As applications of main results, some new Shafer-Fink type inequalities for…

Classical Analysis and ODEs · Mathematics 2013-04-12 Zhen-Hang Yang

We prove the Levin-Ste\v{c}kin inequality using Chebyshev's inequality and symmetrization. Symmetry and slightly modified Chebyshev's inequality are also the key to an elementary proof of Clausing's inequality .

Classical Analysis and ODEs · Mathematics 2016-12-19 Alfred Witkowski

The aim of this paper is to present some new Fejer-type results for convex functions. Improvements of Young's inequality (the arithmetic-geometric mean inequality) and other applications to special means are pointed as well.

Classical Analysis and ODEs · Mathematics 2012-03-22 N. Minculete , F. -C. Mitroi

The main purpose of the present article is to give some new Hilbert's sum type inequalities, which in special cases yield the classical Hilbert's inequalities. Our results provide some new estimates to these types of inequalities.

General Mathematics · Mathematics 2020-02-20 Chang-Jian Zhao , Wing Sum Cheung

In this new version, we correct some typos. For the readers' convenience, we also added some footnotes and more details for certain lemmas and theorems.

Differential Geometry · Mathematics 2013-01-29 Gang Tian

Certain excess versions of the Minkowski and H\"older inequalities are given. These new results generalize and improve the Minkowski and H\"older inequalities.

Probability · Mathematics 2018-07-31 Iosif Pinelis

The aim of this paper is to give a proof of improving of Zalcman's lemma.

Complex Variables · Mathematics 2020-08-11 P. V. Dovbush

In this paper, we first present simple proofs of Choi's results [4], then we give a short alternative proof for Fiedler and Markham's inequality [6]. We also obtain additional matrix inequalities related to partial determinants.

Functional Analysis · Mathematics 2020-03-16 Yongtao Li , Lihua Feng , Zheng Huang , Weijun Liu

Strengthening of two Clarkson-McCarthy inequalities with several operators is established. These not only confirm a conjecture of the author in [Israel J. Math. 2024], but also improve results of Hirazallah-Kittaneh in [Integral Equations…

Functional Analysis · Mathematics 2024-10-29 Teng Zhang

In this article we present a Bernstein inequality for sums of random variables which are defined on a spatial lattice structure. The inequality can be used to derive concentration inequalities. It can be useful to obtain consistency…

Statistics Theory · Mathematics 2017-12-06 Eduardo Valenzuela-Domínguez , Johannes T. N. Krebs , Jürgen E. Franke

We present a short proof of a conjecture proposed by I. Ra\c{s}a (2017), which is an inequality involving basic Bernstein polynomials and convex functions. This proof was given in the letter to I. Ra\c{s}a (2017). The methods of our proof…

Classical Analysis and ODEs · Mathematics 2018-01-09 Andrzej Komisarski , Teresa Rajba

Based on a new idea of factorization, we prove an improved discrete Rellich inequality and discuss its optimality. We also give a conjecture on improved higher order discrete Hardy-like inequalities and formulate an open problem for the…

Spectral Theory · Mathematics 2022-06-23 Borbala Gerhat , David Krejcirik , Frantisek Stampach

In this paper, we sharpen and generalize Shafer's inequality for the arc tangent function. From this, some known results are refined.

Classical Analysis and ODEs · Mathematics 2010-07-12 Feng Qi , Bai-Ni Guo

In this paper we establish mixed weak inequalities of Fefferman-Stein type for Calder\'on-Zygmund operators and their commutators, improving some previous results known in the literature. The main estimates also generalize the classical…

Classical Analysis and ODEs · Mathematics 2025-11-20 Rocío Ayala , Fabio Berra , Gladis Pradolini

We appended an errata to the original submission. The purpose of this errata is to point out two errors in [2] and give a weakened version of those statements made.

Probability · Mathematics 2024-07-02 Erhan Bayraktar , Gaoyue Guo

In this paper, we prove some inequalities for the differences and ratios of the beta function.

Classical Analysis and ODEs · Mathematics 2026-04-27 Jean-Marcel T. Dje , Eyram A. K. Schwinger , Benoit F. Sehba