Results 21 to 30 of about 7,382 (157)

Computing the Gromov-Hausdorff Distance for Metric Trees [PDF]

open access: yesACM Transactions on Algorithms, 2015
The Gromov-Hausdorff (GH) distance is a natural way to measure distance between two metric spaces. We prove that it is NP-hard to approximate the GH distance better than a factor of 3 for geodesic metrics on a pair of trees. We complement this result by providing a polynomial time O (min n , √
Pankaj K. Agarwal   +4 more
openaire   +3 more sources

Volume Comparison in the presence of a Gromov-Hausdorff ε−approximation II

open access: yesAnnals of the West University of Timisoara: Mathematics and Computer Science, 2018
Let (M, g) be any compact, connected, Riemannian manifold of dimension n. We use a transport of measures and the barycentre to construct a map from (M, g) onto a Hyperbolic manifold (ℍn/Λ, g0) (Λ is a torsionless subgroup of Isom(ℍn,g0)), in such a way ...
Sabatini Luca
doaj   +1 more source

Noncommutative Solenoids and the Gromov-Hausdorff Propinquity [PDF]

open access: yes, 2017
We prove that noncommutative solenoids are limits, in the sense of the Gromov-Hausdorff propinquity, of quantum tori. From this observation, we prove that noncommutative solenoids can be approximated by finite dimensional quantum compact metric spaces ...
Latremoliere, Frederic, Packer, Judith
core   +3 more sources

A quantitative obstruction to collapsing surfaces

open access: yesOpen Mathematics, 2019
We provide a quantitative obstruction to collapsing surfaces of genus at least 2 under a lower curvature bound and an upper diameter bound.
Katz Mikhail G.
doaj   +1 more source

A note on Gromov-Hausdorff-Prokhorov distance between (locally) compact measure spaces [PDF]

open access: yes, 2012
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 by describing a
Abraham, Romain   +2 more
core   +6 more sources

ANALYSIS OF FRESCHET AND HAUSDORF METRICS AND THEIR MODIFICATIONS FOR IMAGE COMPARISON

open access: yesКомпютерні системи та інформаційні технології
This paper provides a comprehensive analysis of classical and modern metric approaches used for quantitative evaluation of image similarity, including the Fréchet and Hausdorff distances as well as their modifications – the Gromov-Fréchet and Gromov ...
Микола БЕРЕЗЬКИЙ
doaj   +1 more source

A polynomial-time relaxation of the Gromov-Hausdorff distance

open access: yesCoRR, 2016
15 ...
Soledad Villar   +3 more
openaire   +2 more sources

Matricial quantum Gromov–Hausdorff distance

open access: yesJournal of Functional Analysis, 2003
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 isomorphism classes of metrized operator systems which in many cases exhibits the same convergence properties as ...
openaire   +2 more sources

The Quantum Gromov-Hausdorff Propinquity [PDF]

open access: yes, 2013
We introduce the quantum Gromov-Hausdorff propinquity, a new distance between quantum compact metric spaces, which extends the Gromov-Hausdorff distance to noncommutative geometry and strengthens Rieffel's quantum Gromov-Hausdorff distance and Rieffel's ...
Latremoliere, Frederic
core   +2 more sources

Realizations of Gromov-Hausdorff Distance

open access: yes, 2016
6 ...
Ivanov, Alexander   +2 more
openaire   +2 more sources

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