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This paper investigates the problem of extending measure theory to non-separable structures, from generalized descriptive set theory to a broader class of spaces beyond this framework. While various notions, such as the ideal of measure…

逻辑 · 数学 2026-01-21 Claudio Agostini , Fernando Barrera , Vincenzo Dimonte

In this article, we generalize the notion of orthogonality as a linear combination of norm derivatives in order to give a novel concept that we refer to as $\rho_{\alpha,\beta}$-orthogonality. Also, we discuss some of its geometric…

泛函分析 · 数学 2023-10-12 Kallal Pal , Sumit Chandok

Any symmetric affinity function $w: V\times V \to \mathbb{R}_+$ defined on a discrete set $V$ induces Euclidean space structure on $V$. In particular, an undirected graph specified by an affinity (or adjacency) matrix can be considered as a…

数学物理 · 物理学 2008-04-29 Ph. Blanchard , D. Volchenkov

We present an area formula for continuous mappings between metric spaces, under minimal regularity assumptions. In particular, we do not require any notion of differentiability. This is a consequence of a measure theoretic notion of…

度量几何 · 数学 2010-10-19 Valentino Magnani

This paper is about similarity between objects that can be represented as points in metric measure spaces. A metric measure space is a metric space that is also equipped with a measure. For example, a network with distances between its…

离散数学 · 计算机科学 2020-11-03 Evgeny Dantsin , Alexander Wolpert

In this work, a metric is presented on the set of boundedly-compact pointed metric spaces that generates the Gromov-Hausdorff topology. A similar metric is defined for measured metric spaces that generates the Gromov-Hausdorff-Prokhorov…

度量几何 · 数学 2020-01-10 Ali Khezeli

We study the classification of ultrametric spaces based on their small scale geometry (uniform homeomorphism), large scale geometry (coarse equivalence) and both (all scale uniform equivalences). We prove that these equivalences can be…

几何拓扑 · 数学 2009-09-02 Álvaro Martínez-Pérez

We study the maximal perimeter constant of isotropic log-concave probability measures on $\mathbb{R}^n$. For a measure $\mu$, this quantity, denoted by $\Gamma(\mu)$, is defined as the supremum of the $\mu$-perimeter over all convex bodies…

We give an application of a topological dynamics version of multidimensional Brown's lemma to tiling theory: given a tiling of an Euclidean space and a finite geometric pattern of points $F$, one can find a patch such that, for each scale…

动力系统 · 数学 2013-01-21 Rui Pacheco , Helder Vilarinho

We study the question of constructive approximation of the harmonic measure $\omega_x^\Omega$ of a connected bounded domain $\Omega$ with respect to a point $x\in\Omega$. In particular, using a new notion of computable harmonic…

复变函数 · 数学 2020-11-20 Ilia Binder , Adi Glucksam , Cristobal Rojas , Michael Yampolsky

A labeled metric space is intuitively speaking a metric space together with a special set of points to be understood as the geometric boundary of the space. We study basic properties of a recently introduced labeled Gromov-Hausdorff…

度量几何 · 数学 2022-10-04 Reijo Jaakkola , Antti Kykkänen

The concept of measurability of functions on a charge space is generalised for functions taking values in a uniform space. Several existing forms of measurability generalise naturally in this context, and new forms of measurability are…

泛函分析 · 数学 2024-01-05 Jonathan M. Keith

We determine the homeomorphism type of the space of smooth complete nonnegatively curved metrics on surfaces of positive Euler characteristic equipped with the topology of $C^\gamma$ uniform convergence on compact sets, when $\gamma$ is…

微分几何 · 数学 2017-03-03 Taras Banakh , Igor Belegradek

Measure homology is a variation of singular homology designed by Thurston in his discussion of simplicial volume. Zastrow and Hansen showed independently that singular homology (with real coefficients) and measure homology coincide…

代数拓扑 · 数学 2007-05-23 Clara Loeh

In this paper, we present the characterizations of total boundedness, relative compactness and compactness in fuzzy set spaces equipped with the endograph metric. The conclusions in this paper significantly improve the corresponding…

综合数学 · 数学 2023-11-09 Huan Huang

We introduce a category Prob of probability spaces whose objects are all probability spaces and arrows are corresponding to measurable functions satisfying an absolutely continuous requirement. We can consider a Prob-arrow as an evolving…

概率论 · 数学 2018-10-25 Takanori Adachi , Yoshihiro Ryu

(This is a report for the Proceedings of ``Journees Relativistes 1993'' written in September 1993. Containes a short description of the results published elsewhere in the joint paper with A. Ashtekar) Integral calculus on the space of gauge…

广义相对论与量子宇宙学 · 物理学 2011-04-15 Jerzy Lewandowski

A Hamming compatible metric is an integer-valued metric on the words of a finite alphabet which agrees with the usual Hamming distance for words of equal length. We define a new Hamming compatible metric, compute the cardinality of a sphere…

信息论 · 计算机科学 2012-01-10 Parsa Bakhtary , Othman Echi

Probabilistic frames are a generalization of finite frames into the Wasserstein space of probability measures with finite second moment. We introduce new probabilistic definitions of duality, analysis, and synthesis and investigate their…

泛函分析 · 数学 2017-05-03 Clare Wickman , Kasso Okoudjou

We study the multifractal analysis of self-similar measures arising from random homogeneous iterated function systems. Under the assumption of the uniform strong separation condition, we see that this analysis parallels that of the…

动力系统 · 数学 2019-12-23 Kathryn E. Hare , Kevin G. Hare , Sascha Troscheit