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Related papers: Three geometric constants for Morrey spaces

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In this article, we compute Von Neumann-Jordan constant, James constant, and Dunkl-Williams constant for small Morrey spaces. Our approach can also be seen as an alternative way in computing the three constants for the (classical) Morrey…

Functional Analysis · Mathematics 2019-11-22 Aqfil Mu'tazili , Hendra Gunawan

In this paper, we calculate four geometric constants for discrete Morrey spaces. The constants are generalized von Neumann-Jordan constant, modified von Neumann-Jordan constant, von Neumann-Jordan type constant, and Zb\"{a}ganu constant.…

Functional Analysis · Mathematics 2021-04-28 Hairur Rahman , Hendra Gunawan

In this paper we calculate some geometric constants for Morrey spaces and small Morrey spaces, namely generalized Von Neumann-Jordan constant, modified Von Neumann-Jordan constants, and Zb\'{a}ganu constant. All these constants measure the…

Functional Analysis · Mathematics 2020-04-07 Hairur Rahman , Hendra Gunawan

In this note we prove that the $n$-th Von Neumann-Jordan constant and the $n$-th James constant for discrete Morrey spaces $\ell^p_q$ where $1\le p<q<\infty$ are both equal to $n$. This result tells us that the discrete Morrey spaces are…

Functional Analysis · Mathematics 2021-05-13 Adam Adam , Hendra Gunawan

Based on the parallelogram law and isosceles orthogonality, we define a new orthogonal geometric constant. We first discuss some basic properties of this new constant. Next, we consider the relation between the constant and the uniformly…

Functional Analysis · Mathematics 2022-03-11 Qi Liu , Zhijian Yang , Yongjin Li

We introduce a new geometric constant based on a generalization of the parallelogram law, and study its properties as well as some relationships with other well-known geometric constants. A sufficient condition for normal structure is…

Functional Analysis · Mathematics 2025-08-18 Yuxin Wang , Qi Liu , Qian Li , Qichuan Ni , Zhijian Yang , Muhammad Sarfraz , Yongjin Li

The derivation of the general solutions for stationary and static cylindrically symmetric Einstein spaces of Lewis form is revisited and the physical and geometrical meaning of the parameters appearing in the resulting solutions are…

General Relativity and Quantum Cosmology · Physics 2008-11-26 M. A. H. MacCallum , N. O. Santos

In this paper, we define a new geometric constant based on isosceles orthogonality, denoted by . Through research, we find that this constant is the equivalent p-th von Neumann Jordan constant in the sense of isosceles orthogonality. First,…

Functional Analysis · Mathematics 2025-06-17 Yuxin Wang , Qi Liu , Yongmo Hu , Jinyu Xia , Mengmeng Bao

In this article, we introduce a novel geometric constant $L_X(t)$, which provides an equivalent definition of the von Neumann-Jordan constant from an orthogonal perspective. First, we present some fundamental properties of the constant…

Functional Analysis · Mathematics 2025-04-02 Qichuan Ni , Qi Liu , Yuxin Wang , Jinyu Xia , Ranran Wang

We use Vaschy-Buckhingham Theorem as a systematic tool to build univocal n-dimensional extensions of the electric and gravitational fine structure constants and show that their ratio is dimensionally invariant. The results allow us to…

General Physics · Physics 2009-09-29 Fabricio Casarejos , Jaime F. Villas da Rocha , Roberto Moreira Xavier

Constants of motion are calculated for 2+1 dimensional gravity with topology R x T^2 and negative cosmological constant. Certain linear combinations of them satisfy the anti - de Sitter algebra so(2,2) in either ADM or holonomy variables.…

General Relativity and Quantum Cosmology · Physics 2008-11-26 V. Moncrief , J. E. Nelson

The paper studies a generalized von Neumann-Jordan constant of non-normable metrics on vector spaces. To the best of our knowledge, all existing results of the von Neumann-Jordan constant and its generalizations have been established only…

Functional Analysis · Mathematics 2026-05-20 Doan Huu Hieu , Nguyen Duy Cuong

The 3+1 Hamiltonian Einstein equations, reduced by imposing two commuting spacelike Killing vector fields, may be written as the equations of the $SL(2,R)$ principal chiral model with certain `source' terms. Using this formulation, we give…

General Relativity and Quantum Cosmology · Physics 2010-01-06 Viqar Husain

In this paper we study non-singular vacuum static space-times with non-zero cosmological constant. We introduce new integral quantities, and under suitable assumptions we prove their monotonicity along the level set flow of the static…

Differential Geometry · Mathematics 2022-03-10 Stefano Borghini , Lorenzo Mazzieri

This article establishes cutoff convergence or abrupt convergence of three statistical quantities for multivariate (Hurwitz) stable geometric Brownian motion: the autocorrelation function, the Wasserstein distance between the current state…

Probability · Mathematics 2025-06-30 G. Barrera , M. A. Högele , J. C. Pardo

Constants of motion are calculated for 2+1 dimensional gravity with topology R \times T^2 and negative cosmological constant. Certain linear combinations of them satisfy the anti - de Sitter algebra so(2,2) in either ADM or holonomy…

General Relativity and Quantum Cosmology · Physics 2007-05-23 V. Moncrief , J. E. Nelson

We consider the homogeneous space $M=H\times H/\Delta K$, where $H/K$ is an irreducible symmetric space and $\Delta K$ denotes diagonal embedding. Recently, Lauret and Will provided a complete classification of $H\times H$-invariant…

Differential Geometry · Mathematics 2024-09-18 Valeria Gutiérrez

We consider the Riemannian functional defined on the space of Riemannian metrics with unit volume on a closed smooth manifold $M$ given by $\mathcal{R}_{\frac{n}{2}}(g):= \int_M |R(g)|^{\frac{n}{2}}dv_g$ where $R(g)$, $dv_g$ denote the…

Differential Geometry · Mathematics 2012-11-27 Atreyee Bhattacharya , Soma Maity

This paper is devoted to introduce new geometric constants that quantify the difference between Roberts orthogonality and Birkhoff orthogonality in normed planes. We start by characterizing Roberts orthogonality in two different ways: via…

Metric Geometry · Mathematics 2017-02-22 Vitor Balestro , Horst Martini , Ralph Teixeira

In this paper we obtain Hardy, weighted Trudinger-Moser and Caffarelli-Kohn-Nirenberg type inequalities with sharp constants on Riemannian manifolds with non-positive sectional curvature and, in particular, a variety of new estimates on…

Functional Analysis · Mathematics 2018-02-27 Michael Ruzhansky , Nurgissa Yessirkegenov
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