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A metric measure space is a metric space with a Borel measure. In Gromov's theory of metric measure spaces, there are important invariants called the partial diameter and the observable diameter. We obtain the result that the partial…

Metric Geometry · Mathematics 2024-06-28 Shun Oshima

This work introduces two new notions of dimension, namely the unimodular Minkowski and Hausdorff dimensions, which are inspired from the classical analogous notions. These dimensions are defined for unimodular discrete spaces, introduced in…

Probability · Mathematics 2021-02-16 François Baccelli , Mir-Omid Haji-Mirsadeghi , Ali Khezeli

The nonlinear geometry of operator spaces has recently started to be investigated. Many notions of nonlinear embeddability have been introduced so far, but, as noticed before by other authors, it was not clear whether they could be…

Functional Analysis · Mathematics 2022-11-23 Bruno de Mendonça Braga , Timur Oikhberg

This paper introduces a novel generalization of the classical concept of $S$-metric spaces, referred to as composed $S$-metric spaces. By incorporating a composed function, we impose more general conditions on the triangle inequality,…

General Mathematics · Mathematics 2025-09-16 Nizar Souayah

We introduce a notion of coarse embedding at infinity into Hilbert space for metric spaces, which is a weakening of the notion of fibred coarse embedding and a far generalization of Gromov's concept of coarse embedding. It turns out that a…

Operator Algebras · Mathematics 2022-07-18 Jintao Deng , Liang Guo , Qin Wang , Yazhou Zhang

Geometric property (T) was defined by Willett and Yu, first for sequences of graphs and later for more general discrete spaces. Increasing sequences of graphs with geometric property (T) are expanders, and they are examples of coarse spaces…

Functional Analysis · Mathematics 2021-05-27 Jeroen Winkel

A new mathematical theory, non-associative geometry, providing a unified algebraic description of continuous and discrete spacetime, is introduced.

High Energy Physics - Theory · Physics 2007-05-23 Alexander I. Nesterov , Lev. V. Sabinin

There are several characterizations of coarse embeddability of a discrete metric space into a Hilbert space. In this note we give such characterizations for general metric spaces. By applying these results to the spaces $L_p(\mu)$, we get…

Metric Geometry · Mathematics 2007-05-23 Piotr W. Nowak

Asymptotic cones of metric spaces were first invented by Gromov. They are metric spaces which capture the 'large-scale structure' of the underlying metric space. Later, van den Dries and Wilkie gave a more general construction of asymptotic…

Geometric Topology · Mathematics 2007-05-23 Linus Kramer , Katrin Tent

We show that the problem whether a given finite metric space can be embedded into $m$-dimensional rectilinear space can be reformulated in terms of the Gromov--Hausdorff distance between some special finite metric spaces.

Metric Geometry · Mathematics 2024-12-30 A. O. Ivanov , A. A. Tuzhilin

This article presents a novel mathematical formalism for advanced manifold--metric pairs, enhancing the frameworks of geometry and topology. We construct various D-dimensional manifolds and their associated metric spaces using functional…

General Topology · Mathematics 2026-04-24 Pierros Ntelis

We introduce the notion of regular finite decomposition complexity of a metric family. This generalizes Gromov's finite asymptotic dimension and is motivated by the concept of finite decomposition complexity (FDC) due to Guentner, Tessera…

Metric Geometry · Mathematics 2020-01-22 Daniel Kasprowski , Andrew Nicas , David Rosenthal

The $k$-measure of an integer partition was recently introduced by Andrews, Bhattacharjee and Dastidar. In this paper, we establish trivariate generating function identities counting both the length and the $k$-measure for partitions and…

Combinatorics · Mathematics 2021-05-06 George E. Andrews , Shane Chern , Zhitai Li

We extend a result of Ledrappier, Hochman, and Solomyak on exact dimensionality of stationary measures for $\text{SL}_2(\mathbb{R})$ to disintegrations of stationary measures for $\text{GL}(\mathbb{R}^d)$ onto the one dimensional foliations…

Dynamical Systems · Mathematics 2020-07-15 Pablo Lessa

For every nonempty compact convex subset $K$ of a normed linear space a (unique) point $c_K \in K$, called the generalized Chebyshev center, is distinguished. It is shown that $c_K$ is a common fixed point for the isometry group of the…

Functional Analysis · Mathematics 2012-10-17 Piotr Niemiec

In order to resolve the hierarchy problem, large extra dimensions have been introduced, and it has been suggested that the size of extra dimensions is sub-millimeter. On the other hand, we assume in this paper that the cosmological constant…

High Energy Physics - Phenomenology · Physics 2007-05-23 Satoshi Matsuda , Shigenori Seki

Let $\mathcal{R}=(R,\oplus,\leq,0)$ be an algebraic structure, where $\oplus$ is a commutative binary operation with identity $0$, and $\leq$ is a translation-invariant total order with least element $0$. Given a distinguished subset…

Logic · Mathematics 2018-09-11 Gabriel Conant

Buyalo and Lebedeva have shown that the asymptotic dimension of a hyperbolic group is equal to the dimension of the group boundary plus one. Among the work presented here is a partial extension of that result to all groups admitting…

Geometric Topology · Mathematics 2015-07-17 Craig R. Guilbault , Molly A. Moran

The uniformization and hyperbolization transformations formulated by Bonk, Heinonen and Koskela in \emph{"Uniformizing Gromov Hyperbolic Spaces"}, Ast\'erisque {\bf 270} (2001), dealt with geometric properties of metric spaces. In this…

Metric Geometry · Mathematics 2021-05-24 Anders Bjorn , Jana Bjorn , Nageswari Shanmugalingam

We study properties of twisted unions of metric spaces introduced by Johnson, Lindenstrauss, and Schechtman, and by Naor and Rabani. In particular, we prove that under certain natural mild assumptions twisted unions of $L_1$-embeddable…

Metric Geometry · Mathematics 2021-12-20 Mikhail Ostrovskii , Beata Randrianantoanina