Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Deformations of Wreath Products   Connectivity is a homotopy invariant property of a separable C*-algebra A
which has three important consequences: absence of nontrivial projections,
quasidiagonality and realization of the Kasparov group KK(A,B) as homotopy
classes of asymptotic morphisms from A to the stabilization of B if A is
nuclear. Here we give a new characterization of connectivity for separable
exact C*-algebras and use this characterization to show that the class of
discrete countable amenable groups whose augmentation ideals are connective is
closed under generalized wreath products. In a related circle of ideas, we give
a result on quasidiagonality of reduced crossed-product C*-algebras associated
to noncommutative Bernoulli actions.

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The categories of this paper are: hep-ex
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The categories of this paper are: adap-org
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The categories of this paper are: eess
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The categories of this paper are: hep-th
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The categories of this paper are: ao-sci
32
The categories of this paper are: atom-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: q-alg
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The categories of this paper are: solv-int
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The categories of this paper are: alg-geom
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The categories of this paper are: acc-phys
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The categories of this paper are: cs
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The categories of this paper are: dg-ga
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The categories of this paper are: cond-mat
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The categories of this paper are: astro-ph
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The categories of this paper are: nucl-ex