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Related papers: Gromov-Hausdorff ultrametric

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This paper demonstrates that every ultrametric space is homeomorphic to a clade space of a pruned tree, i.e., a subspace of a tree's canopy. Furthermore, it characterizes several topological properties of ultrametrizable spaces through the…

General Topology · Mathematics 2024-08-01 Itamar Bellaïche

For any intrinsic Gromov hyperbolic space we establish a Gehring-Hayman type theorem for conformally deformed spaces. As an application, we prove that any complete intrinsic hyperbolic space with atleast two points in the Gromov boundary…

Complex Variables · Mathematics 2024-11-04 Vasudevarao Allu , Alan P Jose

We study topological properties of the Gromov-Hausdorff metric on the set of isometry classes of nonnegatively curved $2$-spheres.

Differential Geometry · Mathematics 2017-06-08 Igor Belegradek

We study notions of persistent homotopy groups of compact metric spaces together with their stability properties in the Gromov-Hausdorff sense. We pay particular attention to the case of fundamental groups, for which we obtain a more…

Algebraic Topology · Mathematics 2022-09-13 Facundo Mémoli , Ling Zhou

We prove that any measured Gromov-Hausdorff precompact set of metric measure spaces which is contained in a certain set, called a pyramid, is bounded by some metric measure space with respect to the Lipschitz order inside the pyramid. This…

Metric Geometry · Mathematics 2022-10-04 Daisuke Kazukawa , Takumi Yokota

We present an abstract approach to Lorentzian Gromov-Hausdorff distance and convergence, and an alternative approach to Lorentzian length spaces that does not use auxiliary ``positive signature'' metrics or other unobserved fields. We begin…

Differential Geometry · Mathematics 2024-05-31 E. Minguzzi , S. Suhr

The paper is devoted to the study of the Gromov-Hausdorff proper class, consisting of all metric spaces considered up to isometry. In this class, a generalized Gromov-Hausdorff pseudometric is introduced and the geometry of the resulting…

Metric Geometry · Mathematics 2021-10-13 Semeon A. Bogaty , Alexey A. Tuzhilin

The magnitude of metric spaces does not appear to possess a simple, convenient continuity property, and previous studies have presented affirmative results under additional constraints or weaker notions, as well as counterexamples. In this…

Metric Geometry · Mathematics 2026-01-30 Byungchang So

Using classical results of infinite-dimensional geometry, we show that the isometry group of the Urysohn space, endowed with its usual Polish group topology, is homeomorphic to the separable Hilbert space. The proof is basedon a lemma about…

Metric Geometry · Mathematics 2009-11-22 Julien Melleray

Urysohn constructed a separable complete universal metric space homogeneous for all finite subspaces, which is today called the Urysohn universal metric space. Some authors have recently investigated an ultrametric analogue of this space.…

Metric Geometry · Mathematics 2023-06-27 Yoshito Ishiki

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…

Differential Geometry · Mathematics 2017-03-03 Taras Banakh , Igor Belegradek

We establish Gromov's celebrated reconstruction theorem in Lorentzian geometry. Alongside this result, we introduce and study a natural concept of isomorphy of normalized bounded Lorentzian metric measure spaces. We outline applications to…

Differential Geometry · Mathematics 2025-06-13 Mathias Braun , Clemens Sämann

We prove that the Ahlfors regular conformal dimension is upper semicontinuous with respect to Gromov-Hausdorff convergence when restricted to the class of uniformly perfect, uniformly quasi-selfsimilar metric spaces. Moreover we show the…

Metric Geometry · Mathematics 2023-07-11 Nicola Cavallucci

The present article addresses to everyone who starts working with (pointed) Gromov-Hausdorff convergence. In the major part, both Gromov-Hausdorff convergence of compact and of pointed metric spaces are introduced and investigated.…

Metric Geometry · Mathematics 2017-03-29 Dorothea Jansen

Motivated by the quest for an analogue of the Gromov-Hausdorff distance in noncommutative geometry which is well-behaved with respect to C*-algebraic structures, we propose a complete metric on the class of Leibniz quantum compact metric…

Operator Algebras · Mathematics 2015-01-28 Frederic Latremoliere

In the present paper we investigate the metric space $\cal M$ consisting of isometry classes of compact metric spaces, endowed with the Gromov-Hausdorff metric. We show that for any finite subset $M$ from a sufficiently small neighborhood…

Metric Geometry · Mathematics 2016-05-05 Alexander Ivanov , Alexey Tuzhilin

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

We present an extension of the Gromov-Hausdorff metric on the set of compact metric spaces: the Gromov-Hausdorff-Prokhorov metric on the set of compact metric spaces endowed with a finite measure. We then extend it to the non-compact case…

Metric Geometry · Mathematics 2013-01-28 Romain Abraham , Jean-Francois Delmas , Patrick Hoscheit

In this manuscript, we claim that the newly introduced $\mathcal{F}$-metric spaces are Hausdorff and also first countable. Moreover, we assert that every separable $\mathcal{F}$-metric space is second countable. Additionally, we acquire…

Functional Analysis · Mathematics 2018-06-18 Ashis Bera , Lakshmi Kanta Dey , Hiranmoy Garai , Ankush Chanda

We develop a matricial version of Rieffel's Gromov-Hausdorff distance for compact quantum metric spaces within the setting of operator systems and unital C*-algebras. Our approach yields a metric space of ``isometric'' unital complete order…

Operator Algebras · Mathematics 2007-05-23 David Kerr