中文
相关论文

相关论文: Orlicz--Lorentz centroid bodies

200 篇论文

In this paper, we investigate necessary and sufficient conditions on the boundedness of composition operators on the Orlicz-Morrey spaces. The results of boundedness include Lebesgue and generalized Morrey spaces as special cases. Further,…

泛函分析 · 数学 2024-04-16 Masahiro Ikeda , Isao Ishikawa , Ryota Kawasumi

In this paper, we consider the predual spaces of weak Orlicz spaces. As an application, we provide the Fefferman-Stein vector-valued maximal inequality for the weak Orlicz spaces. In order to prove this statement, we introduced the…

泛函分析 · 数学 2021-04-27 Naoya Hatano , Ryota Kawasumi , Takahiro Ono

We study Rellich inequalities associated to higher-order elliptic operators in the Euclidean space. The inequalities are expressed in terms of an associated Finsler metric. In the case of half-spaces we obtain the sharp constant while for a…

偏微分方程分析 · 数学 2021-08-06 Gerassimos Barbatis , Miltiadis Paschalis

The optimal Orlicz target space is exhibited for embeddings of fractional-order Orlicz-Sobolev spaces in $\mathbb R^n$. An improved embedding with an Orlicz-Lorentz target space, which is optimal in the broader class of all…

泛函分析 · 数学 2020-01-17 Angela Alberico , Andrea Cianchi , Luboš Pick , Lenka Slavíková

The Loomis-Whitney inequality states that the volume of a convex body is bounded by the product of volumes of its projections onto orthogonal hyperplanes. We provide an extension of both this fact and a generalization of this fact due to…

度量几何 · 数学 2020-01-22 Johannes Hosle

In this paper we consider the problem of minimizing the relative perimeter under a volume constraint in the interior of a convex body, i.e., a compact convex set in Euclidean space with interior points. We shall not impose any regularity…

度量几何 · 数学 2013-06-05 Manuel Ritoré , Efstratios Vernadakis

The intrinsic volumes are measures of the content of a convex body. This paper uses probabilistic and information-theoretic methods to study the sequence of intrinsic volumes of a convex body. The main result states that the intrinsic…

度量几何 · 数学 2019-03-21 Martin Lotz , Michael B. McCoy , Ivan Nourdin , Giovanni Peccati , Joel A. Tropp

This study utilizes Orlicz functions to provide refined lower and upper bounds on the q-numerical radius of an operator acting on a Hilbert space. Additionally, the concept of q-sectorial matrices is introduced and further bounds for the…

泛函分析 · 数学 2025-04-30 Fuad Kittaneh , Arnab Patra , Jyoti Rani

In this note we examine the volume of the convex hull of two congruent copies of a convex body in Euclidean $n$-space, under some subsets of the isometry group of the space. We prove inequalities for this volume if the two bodies are…

度量几何 · 数学 2013-06-19 Ákos G. Horváth , Z. Lángi

In this research article, we establish some identities and estimates for the operator norms and the Hausdorff measures of noncompactness of certain operators on some lacunary difference sequence spaces defined by Orlicz function. Moreover,…

泛函分析 · 数学 2015-06-19 Ekrem Savas , Stuti Borgohain

We present several sharp inequalities for the SL(n) invariant $\Omega_{2,n}(K)$ introduced in our earlier work on centro-affine invariants for smooth convex bodies containing the origin. A connection arose with the Paouris-Werner invariant…

泛函分析 · 数学 2012-08-06 Alina Stancu

We consider two well-known problems: upper bounding the volume of lower dimensional ellipsoids contained in convex bodies given their John ellipsoid, and lower bounding the volume of ellipsoids containing projections of convex bodies given…

度量几何 · 数学 2025-01-03 René Brandenberg , Florian Grundbacher

Orlicz-Lorentz spaces provide a common generalization of Orlicz spaces and Lorentz spaces. In this paper, we investigate their Boyd indices. Bounds on the Boyd indices in terms of the Matuszewska-Orlicz indices of the defining functions are…

泛函分析 · 数学 2008-02-03 Stephen J. Montgomery-Smith

We study volumes of sections of convex origin-symmetric bodies in $\mathbb{R}% ^{n}$ induced by orthonormal systems on probability spaces. The approach is based on volume estimates of \ John-L\"{o}wner ellipsoids and expectations of norms…

泛函分析 · 数学 2022-12-08 Alexander Kushpel

If $K\subset\mathbb{R}^n$ is a convex body and $\Gamma_pK$ is the $p$-centroid body of $K$, the $L_p$ Busemann-Petty centroid inequality states that $\vol(\Gamma_pK) \geq \vol(K)$, with equality if and only if $K$ is an ellipsoid centered…

泛函分析 · 数学 2025-03-14 Julian Haddad , Carlos Hugo Jimenez , Leticia Alves da Silva

In this paper, we investigate the boundedness of maximal operator and its commutators in generalized Orlicz-Morrey spaces on the spaces of homogeneous type. As an application of this boundedness, we give necessary and sufficient condition…

泛函分析 · 数学 2018-04-25 Vagif S. Guliyev , Fatih Deringoz

In this paper we deal with unbounded composition operators defined in Orlicz spaces. Indeed, we provide some necessary and sufficient condition for densely definedness of composition operators on Orlicz spaces. Also, we will investigate the…

泛函分析 · 数学 2022-11-16 M. Namdar Baboli , Y. Estaremi

Short and transparent proofs of central limit theorems for intrinsic volumes of random polytopes in smooth convex bodies are presented. They combine different tools such as estimates for floating bodies with Stein's method from probability…

度量几何 · 数学 2017-11-06 Christoph Thaele , Nicola Turchi , Florian Wespi

We investigate the magnitude relation of the non-centered Hardy-Littlewood maximal operators and centered one. By using a discretization technique, we prove two facts: the first one is that the space is ultrametric if and only if the two…

经典分析与常微分方程 · 数学 2022-11-29 Wu-yi Pan

The distance between convex bodies \(K, L \subseteq \R^n\) is defined as \[ d(K,L)= \inf \left\{ \lambda \ge 1: \ L-x \subseteq T (K-y) \subseteq \lambda (L-x) \right\}, \] where the infimum is taken over all \(x,y \in \R^n\) and all…

泛函分析 · 数学 2026-02-27 Han Huang , Mark Rudelson