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20022005
most citedtheta-deformations as compact quantum metric spaces

23 citations · 51 across the 12 of their papers we have counts for

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7 papers · 1 filter

math.OA2005

Strong Morita equivalence of higher-dimensional noncommutative tori. II

George A. Elliott, Hanfeng Li

We show that two C*-algebraic noncommutative tori are strongly Morita equivalent if and only if they have isomorphic ordered K_0-groups and centers, extending N. C. Phillips's resu…

math.OA200319 cited

C*-algebraic quantum Gromov-Hausdorff distance

Hanfeng Li

We introduce a new quantum Gromov-Hausdorff distance between C*-algebraic compact quantum metric spaces. Because it is able to distinguish algebraic structures, this new distance f…

math.OA2003

Order-unit quantum Gromov-Hausdorff distance

Hanfeng Li

We introduce a new distance dist_oq between compact quantum metric spaces. We show that dist_oq is Lipschitz equivalent to Rieffel's distance dist_q, and give criteria for when a p…

math.OA200323 cited

theta-deformations as compact quantum metric spaces

Hanfeng Li

Let M be a compact spin manifold with a smooth action of the n-torus. Connes and Landi constructed theta-deformations M_{theta} of M, parameterized by n by n real skew-symmetric ma…

math.OA20034 cited

Positive Voiculescu-Brown entropy in noncommutative toral automorphisms

David Kerr, Hanfeng Li

We show that the Voiculescu-Brown entropy of a noncommutative toral automorphism arising from a matrix S in GL(d,Z) is at least half the value of the topological entropy of the cor…

math.OA20031 cited

Strong Morita equivalence of higher-dimensional noncommutative tori

Hanfeng Li

We show that matrices in the same orbit of the SO(n, n|Z) action on the space of n\times n skew-symmetric matrices give strong Morita equivalent noncommutative tori, both at the C*…