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We obtain some new inequalities of Chebyshev Type.

数值分析 · 数学 2016-10-03 Andriy L. Shidlich , Stanislav O. Chaichenko

In this note, we derive non trivial sharp bounds related to the weighted harmonic-geometric-arithmetic means inequalities, when two out of the three terms are known. As application, we give an explicit bound for the trace of the inverse of…

经典分析与常微分方程 · 数学 2010-09-27 Gerard Maze , Urs Wagner

In this paper, we obtain a sharp Garliardo-Nirenberg inequality on integer lattices and characterize its rigidity. Moreover, as a consequence of the sharp Garliardo-Nirenberg inequality, we obtain sharp logarithmic Sobolev inequalities on…

偏微分方程分析 · 数学 2025-11-04 Yongjie Shi , Chengjie Yu

We prove a simple inequality for a sum of squares of norms of two vectors in an inner product space. Next, using this inequality we derive the so--called "reverse uncertainty relation" and analyze its properties.

量子物理 · 物理学 2026-05-28 K. Urbanowski

We give an expression for a generalized numerical radius of Hilbert space operators and then apply it to obtain upper and lower bounds for the generalized numerical radius. We also establish some generalized numerical radius inequalities…

泛函分析 · 数学 2019-09-26 A. Zamani , M. S. Moslehian , Q. Xu , C. Fu

We study approximation of non-autonomous linear differential equations with variable delay over infinite intervals. We use piecewise constant argument to obtain a corresponding discrete difference equation. The study of numerical…

经典分析与常微分方程 · 数学 2016-07-26 Daniel Sepúlveda

We deal with the solution of a generic linear inverse problem in the Hilbert space setting. The exact right hand side is unknown and only accessible through discretised measurements corrupted by white noise with unknown arbitrary…

数值分析 · 数学 2023-02-14 Bastian Harrach , Tim Jahn , Roland Potthast

We prove sharp asymptotic estimates for the gradient of positive solutions to certain nonlinear $p$-Laplace equations in Euclidean space by showing symmetry and uniqueness of positive solutions to associated limiting problems.

偏微分方程分析 · 数学 2024-07-29 Ramya Dutta , Pierre-Damien Thizy

A nonlinear inequality is formulated in the paper. An estimate of the rate of decay of solutions to this inequality is obtained. This inequality is of interest in a study of dynamical systems and nonlinear evolution equations. It can be…

经典分析与常微分方程 · 数学 2009-03-05 N. S. Hoang , A. G. Ramm

We examine some kinds of discrete symmetries which are dynamically preserved, using the (generalized) Gowdy models of the first kind.

广义相对论与量子宇宙学 · 物理学 2007-05-23 Masayuki Tanimoto

In this note we reprove generalized H\"{o}lder's inequality in weak Morrey spaces. In particular, we get sharper bounds than those in \cite{gunawan2}. The bounds are obtained through the relation of weak Morrey spaces and weak Lebesgue…

泛函分析 · 数学 2019-04-08 Asyraf Wajih , Hendra Gunawan

Nandakumar asked whether there is a tiling of the plane by pairwise non-congruent triangles of equal area and equal perimeter. Here a weaker result is obtained: there is a tiling of the plane by pairwise non-congruent triangles of equal…

度量几何 · 数学 2016-03-31 Dirk Frettlöh

In this paper, by using Jensen's inequality and Chebyshev integral inequality, some generalizations and new refined Hardy type integral inequalities are obtained. In addition, the corresponding reverse relation are also proved.

经典分析与常微分方程 · 数学 2015-12-02 Khaled Mehrez

A nonlinear inequality is formulated in the paper. An estimate of the rate of growth/decay of solutions to this inequality is obtained. This inequality is of interest in a study of dynamical systems and nonlinear evolution equations. It can…

经典分析与常微分方程 · 数学 2010-01-29 N. S. Hoang , A. G. Ramm

In this paper, we establish discrete Hardy-Rellich inequalities on $\mathbb{N}$ with $\Delta^\frac{\ell}{2}$ and optimal constants, for any $\ell \geq 1$. As far as we are aware, these sharp inequalities are new for $\ell \geq 3$. Our…

偏微分方程分析 · 数学 2023-12-27 Xia Huang , Dong Ye

We give norm inequalities for some classical operators in amalgams spaces and in some subspace of Morrey space.

经典分析与常微分方程 · 数学 2012-11-20 Aline Bonami , Justin Feuto

In this paper, we study some new fixed point results for self maps defined on partial metric type spaces. In particular, we give common fixed point theorems in the same setting. Some examples are given which illustrate the results.

一般拓扑 · 数学 2018-09-12 Yaé Ulrich Gaba

We introduce an alternative formalization of curved spaces in which the concept of a pointwise affine space, as defined here, replaces that of a manifold. New or modified definitions of familiar notions from differential geometry such as…

微分几何 · 数学 2025-09-09 Dan Jonsson

We establish sharp convolution and multiplication estimates in weighted Lebesgue, Fourier Lebesgue and modulation spaces. Especially we recover some known results.

泛函分析 · 数学 2013-01-28 Joachim Toft , Karoline Johansson , Stevan Pilipovic , Nenad Teofanov

In this paper we make some observations concerning m-metric spaces and point out some discrepancies in the proofs found in the literature. To remedy this, we propose a new topological construction and prove that it is in fact a…

一般拓扑 · 数学 2018-07-03 Samer Assaf