Quantized Gromov-Hausdorff distance

Details Quantized Gromov-Hausdorff distance Quantized Gromov-Hausdorff distance

2005-03-16

arxiv.org/abs/math/0503344v2

J. Funct. Anal. 238 (2006), no. 1, 58--98

Mathematics

Operator Algebras

34 pages. An oversight appeared in Proposition 4.9 of Version 1. This proposition has been deleted. Also some type errors have

Scientific paper

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 quantized metric spaces are completely isometric if and only if their quantized Gromov-Hausdorff distance is zero. We establish a completeness theorem. As applications, we show that a quantized metric space with 1-exact underlying matrix order unit space is a limit of matrix algebras with respect to quantized Gromov-Hausdorff distance, and that matrix algebras converge naturally to the sphere for quantized Gromov-Hausdorff distance.

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