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Your search keyword '"Pichot, Mikaël"' showing total 2 results
Start Over Author "Pichot, Mikaël" Topic discrete groups
2 results on '"Pichot, Mikaël"'

1. SOFIC DIMENSION FOR DISCRETE MEASURED GROUPOIDS.

Author

DYKEMA, KEN, KERR, DAVID, and PICHOT, MIKAËL

Subjects
DIMENSIONS, DISCRETE groups, MEASURE theory, GROUPOIDS, PROBABILITY measures, APPROXIMATION theory
Abstract

For discrete measured groupoids preserving a probability measure we introduce a notion of sofic dimension that measures the asymptotic growth of the number of sofic approximations on larger and larger finite sets. In the case of groups we give a formula for free products with amalgamation over an amenable subgroup. We also prove a free product formula for measurepreserving actions. [ABSTRACT FROM AUTHOR]

Published
2014
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2. An exotic group with the Haagerup property.

Author

Barré, Sylvain and Pichot, Mikaël

Subjects
*EUCLIDEAN geometry, *NON-Euclidean geometry, *GEOMETRIC congruences, *CURVILINEAR coordinates, *DISCRETE groups
Abstract

We prove theHaagerup property for an infinite discrete group constructed using surgery on a Euclidean Tits building of type Ã2. [ABSTRACT FROM AUTHOR]

Published
2013
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