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The paper is devoted to geometrical investigation of the Gromov-Hausdorff distance on the classes of all metric spaces and of all bounded metric spaces. The main attention is paid to pass connectivity questions. The pass connected…

Metric Geometry · Mathematics 2022-04-06 A. Ivanov , R. Tsvetnikov , A. Tuzhilin

We study the Gromov-Hausdorff convergence of metric pairs and metric tuples and prove the equivalence of different natural definitions of this concept. We also prove embedding, completeness and compactness theorems in this setting. Finally,…

Metric Geometry · Mathematics 2025-03-11 Andrés Ahumada Gómez , Mauricio Che

In this paper, we study metric trees, without any finiteness restrictions. For subsets of such trees, a condition that guarantees that the Hausdorff and Gromov--Hausdorff distances from the subset to the entire metric tree are the same is…

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

In this paper we explore a special class of metric spaces called smocked metric spaces and study their tangent cones at infinity. We prove that under the right hypotheses, the rescaled limits of balls converge in both the Gromov-Hausdorff…

Metric Geometry · Mathematics 2021-05-04 M. Dinowitz , H. Drillick , M. Farahzad , C. Sormani , A. Yamin

In this paper, an approach for generalizing the Gromov-Hausdorff metric is presented, which applies to metric spaces equipped with some additional structure. A special case is the Gromov-Hausdorff-Prokhorov metric between measured metric…

Metric Geometry · Mathematics 2023-11-30 Ali Khezeli

An algorithm to compute Connes spectral distance, adaptable to the Hilbert-Schmidt operatorial formulation of non-commutative quantum mechanics, was developed earlier by introducing the appropriate spectral triple and used to compute…

In many real-world applications data come as discrete metric spaces sampled around 1-dimensional filamentary structures that can be seen as metric graphs. In this paper we address the metric reconstruction problem of such filamentary…

Computational Geometry · Computer Science 2013-05-07 Frédéric Chazal , Jian Sun

We study sequences of oriented Riemannian manifolds with boundary and, more generally, integral current spaces and metric spaces with boundary. {\color{blue}For a metric space, we define its boundary to be the completion of the space minus…

Metric Geometry · Mathematics 2021-08-18 Raquel Perales

If two compact quantum metric spaces are close in the metric sense, then how similar are they, as noncommutative spaces? In the classical realm of Riemannian geometry, informally, if two manifolds are close in the Gromov-Hausdorff distance,…

Operator Algebras · Mathematics 2025-10-16 Carla Farsi , Frederic Latremoliere

A quantized metric space is a matrix order unit space equipped with an operator space version of Rieffel's Lip-norm. We develop for quantized metric spaces an operator space version of quantum Gromov-Hausdorff distance. We show that two…

Operator Algebras · Mathematics 2009-01-18 Wei Wu

We provide convergence in the quantum Gromov-Hausdorff propinquity of Latr\'emoli\`ere of some sequences of infinite-dimensional Leibniz compact quantum metric spaces of Rieffel given by AF algebras and Christensen-Ivan spectral spaces. The…

Operator Algebras · Mathematics 2023-12-29 Clay Adams , Konrad Aguilar , Esteban Ayala , Evelyne Knight , Chloe Marple

In the present paper a distinguishability of bounded metric spaces by the set of the Gromov--Hausdorff distances to so-called simplexes (metric spaces with unique non-zero distance) is investigated. It is easy to construct an example of…

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

We evaluate the Gutzwiller trace formula for the level density of classically chaotic systems by considering the level density in a bounded energy range and truncating its Fourier integral. This results in a limiting procedure which…

chao-dyn · Physics 2008-02-03 Eyal Doron

For a unital C*-algebra A, which is equipped with a spectral triple and an extension T of A by the compacts, we construct a family of spectral triples associated to T and depending on the two positive parameters (s,t). Using Rieffel's…

Operator Algebras · Mathematics 2009-11-13 Erik Christensen , Cristina Ivan

By a quantum metric space we mean a C^*-algebra (or more generally an order-unit space) equipped with a generalization of the Lipschitz seminorm on functions which is defined by an ordinary metric. We develop for compact quantum metric…

Operator Algebras · Mathematics 2007-05-23 Marc A. Rieffel

It is shown that any bounded metric space can be isometrically embedded into the Gromov--Hausdorff metric class GH. This result is a consequence of local geometry description of the class GH in a sufficiently small neighborhood of a generic…

Metric Geometry · Mathematics 2022-03-08 Alexander O. Ivanov , Alexey A. Tuzhilin

We present a new general framework for metrization of Gromov-Hausdorff-type topologies on non-compact metric spaces. We also give easy-to-check conditions for separability and completeness and hence the measure theoretic requirements are…

Metric Geometry · Mathematics 2025-09-08 Ryoichiro Noda

We show that Connes' metric on the state space associated with a spectral triple is nowhere infinite exactly when it is globally bounded. Moreover, we produce a family of simple examples showing that this is not automatically the case.

Operator Algebras · Mathematics 2024-02-21 David Kyed , Ryszard Nest

In the present paper we investigate geometric characteristics of compact metric spaces, which can be described in terms of Gromov-Hausdorff distances to simplexes, i.e., to finite metric spaces such that all their nonzero distances are…

Metric Geometry · Mathematics 2016-07-25 Alexander O. Ivanov , Alexey A. Tuzhilin

The Gromov-Hausdorff distance between two metric spaces measures how far the spaces are from being isometric. It has played an important and longstanding role in geometry and shape comparison. More recently, it has been discovered that the…

Metric Geometry · Mathematics 2024-08-27 Michael Harrison , R. Amzi Jeffs