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In this paper we obtain a generalization of some integral inequalities related to Chebyshev`s functional by using a generalized Katugampola fractional integral.

综合数学 · 数学 2019-09-17 Tariq A. Al-Jaaidi , Deepak B. Pachpatte

Some new Gruss type inequalities in inner product spaces and applications for integrals are given.

偏微分方程分析 · 数学 2007-05-23 Sever Silvestru Dragomir

We introduce the forward (backward) gH-difference operator of interval sequences, and establish some new discrete Opial type inequalities for interval-valued functions. Further, we obtain generalizations of classical discrete Opial type…

综合数学 · 数学 2024-03-18 Dafang Zhao , Xuexiao You , Delfim F. M. Torres

We discuss the inequalities for $q$-integrals because of the fact that the inequalities can be very useful in the future mathematical research. Since $q$-integral of a function over an interval $[a,b]$ is defined by the difference of two…

经典分析与常微分方程 · 数学 2007-05-23 Predrag M. Rajkovic , Sladjana D. Marinkovic , Miomir S. Stankovic

In 1941, G. Gr\"unwald proved the convergence of a sequence of operators constructed using classical Lagrange interpolation at Chebyshev nodes. In this work, we establish a perturbed version of Gr\"unwald's result, thereby extending the…

泛函分析 · 数学 2025-12-02 Vinaya P C

In this paper, we establish new an inequality of weighted Ostrowski-type for double integrals involving functions of two independent variables by using fairly elementary analysis.

经典分析与常微分方程 · 数学 2010-05-05 M. Z. Sarikaya , H. Ogunmez

In this paper, we obtained some new Ostrowski-Gruss type inequalities contains twice differentiable functions.

经典分析与常微分方程 · 数学 2010-12-27 M. Emin Ozdemir , Ahmet Ocak Akdemir , Erhan Set

The Golden-Thompson inequality, ${\rm Tr} \, (e^{A + B}) \le {\rm Tr} \, (e^A e^B)$ for $A,B$ Hermitian matrices, appeared in independent works by Golden and Thompson published in 1965. Both of these were motivated by considerations in…

数学物理 · 物理学 2015-06-22 Peter J. Forrester , Colin J. Thompson

The Cauchy-Schwarz, Buzano and Kre\u{\i}n inequalities are three inequalities about inner product. The main goal of this article is to present refinements of Buzano and Cauchy-Schwarz inequalities, and to present a new proof of a refined…

泛函分析 · 数学 2022-06-20 Mohammad Sababheh , Hamid Reza Moradi , Zahra Heydarbeygi

Assume that $\,I\subseteq\mathbb{R}\,$ is an interval and $\,\beta:\,I\rightarrow\,I\,$ a strictly increasing and continuous function with a single fixed point $\,s_0\in I\,$, satisfying $\,(s_0-t)(\beta(t)-t)\leq 0\,$ for all $\,t\in I$,…

综合数学 · 数学 2024-10-18 J. L. Cardoso , N. Haque , A. Macedo

In the present paper, a new subclass of analytic and bi-univalent functions by means of Chebyshev polynomials is introduced. Certain coefficient bounds for functions belong to this subclass are obtained. Furthermore, the Fekete-Szego…

复变函数 · 数学 2021-02-18 Feras Yousef , B. A. Frasin , Tariq Al-Hawary

Our objective in this paper is to introduce and investigate a newly-constructed subclass of normalized analytic and bi-univalent functions by means of the Chebyshev polynomials of the second kind. Upper bounds for the second and third…

复变函数 · 数学 2021-02-18 Feras Yousef , Somaia Alroud , Mohamed Illafe

In this article, we first establish operator-valued analogues of multidimensional refined Bohr inequality. Then we establish operator-valued analogues of multidimensional improved Bohr inequality with a certain power of the norm of the…

复变函数 · 数学 2023-08-29 Sabir Ahammed , Molla Basir Ahamed

It is well known that $li(x)>\pi(x)$ (i) up to the (very large) Skewes' number $x_1 \sim 1.40 \times 10^{316}$ \cite{Bays00}. But, according to a Littlewood's theorem, there exist infinitely many $x$ that violate the inequality, due to the…

数论 · 数学 2013-03-20 Adel Alamadhi , Michel Planat , Patrick Solé

In 2007, \'A. Baricz put forward a conjecture concerning Tur\'an-type inequalities for Gaussian hypergeometric functions (see Conjecture \ref{ConjA} in Section \ref{Sec1}). In this paper, the authors disprove this conjecture with several…

经典分析与常微分方程 · 数学 2024-08-29 Song-Liang Qiu , Xiao-Yan Ma , Xue-Yan Xiang

Some sharp inequalities of Gruss type for sequences of vectors in real or complex inner product spaces are obtained. Applications for Jensen's inequality for convex functions defined on such spaces are also provided.

经典分析与常微分方程 · 数学 2025-10-20 Sever Silvestru Dragomir

Let $\psi_{\mathbb K}$ be the Chebyshev function of a number field $\mathbb K$. Let $\psi^{(1)}_{\mathbb K}(x):=\int_{0}^{x}\psi_{\mathbb K}(t)\,d t$ and $\psi^{(2)}_{\mathbb K}(x):=2\int_{0}^{x}\psi^{(1)}_{\mathbb K}(t)\,d t$. We prove…

数论 · 数学 2019-05-28 Loïc Grenié , Giuseppe Molteni

Simple inequalities are established for some integrals involving the modified Bessel functions of the first and second kind. In most cases, we show that we obtain the best possible constant or that our bounds are tight in certain limits. We…

经典分析与常微分方程 · 数学 2018-02-09 Robert E. Gaunt

Recently we introduced a new Bernstein-type operator using P\'olya's urn model with negative replacement, and we showed that it satisfies a Popoviciu-type inequality with a constant slightly larger than that of the corresponding inequality…

经典分析与常微分方程 · 数学 2018-03-28 Mihai N. Pascu , Nicolae R. Pascu , Florenţa Tripşa

In this work, an extension of two-point Ostrowski's formula for $n$-times differentiable functions is proved. A generalization of Taylor formula is deduced. An identity of Fink type for this extension is provided. Error estimates for the…

经典分析与常微分方程 · 数学 2019-05-24 Mohammad W. Alomari