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Gromov-Hausdorff Distance for Quantum Metric Spaces/Matrix Algebras Converge to the Sphere for Quantum Gromov-Hausdorff Distance
Marc A. Rieffel, University of California, Berkeley, CA

Memoirs of the American Mathematical Society
2004; 91 pp; softcover
Volume: 168
ISBN-10: 0-8218-3518-1
ISBN-13: 978-0-8218-3518-0
List Price: US$63
Individual Members: US$37.80
Institutional Members: US$50.40
Order Code: MEMO/168/796
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By a quantum metric space we mean a \(C^*\)-algebra (or more generally an order-unit space) equipped with a generalization of the usual Lipschitz seminorm on functions which one associates to an ordinary metric. We develop for compact quantum metric spaces a version of Gromov-Hausdorff distance. We show that the basic theorems of the classical theory have natural quantum analogues. Our main example involves the quantum tori, \(A_\theta\). We show, for consistently defined "metrics", that if a sequence \(\{\theta_n\}\) of parameters converges to a parameter \(\theta\), then the sequence \(\{A_{\theta_n}\}\) of quantum tori converges in quantum Gromov-Hausdorff distance to \(A_\theta\).


Graduate students and research mathematicians interested in functional analysis.

Table of Contents

  • Gromov-Hausdorff distance for quantum metric spaces
  • Bibliography
  • Matrix algebras Converge to the sphere for quantum Gromov-Hausdorff distance
  • Bibliography
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