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Amenability of quasi-lattice ordered groups

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No logo availableBanff International Research Station (BIRS) for Mathematical Innovation and Discovery
 Huef, Astrid an

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Amenability of quasi-lattice ordered groups
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17
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Quasi-lattice ordered groups and their Toeplitz algebras were introduced by Nica in 1992. A quasi-lattice ordered group is amenable if the concrete Toeplitz subalgebra acting on l2(P) is isomorphic to the universal one. Laca-Raeburn used "controlled maps" to find sufficient conditions for amenability. Here I will discuss a more general notion of controlled map. This is joint work with Ilija Tolich and Iain Raeburn.
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