Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Reduced C*-algebras of Fell bundles over inverse semigroups   We construct a weak conditional expectation from the section C*-algebra of a
Fell bundle over a unital inverse semigroup to its unit fibre. We use this to
define the reduced C*-algebra of the Fell bundle. We study when the reduced
C*-algebra for an inverse semigroup action on a groupoid by partial
equivalences coincides with the reduced groupoid C*-algebra of the
transformation groupoid, giving both positive results and counterexamples.

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The categories of this paper are: nucl-ex
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The categories of this paper are: comp-gas
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The categories of this paper are: astro-ph
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The categories of this paper are: eess
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The categories of this paper are: math-ph
1
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: supr-con
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The categories of this paper are: stat
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The categories of this paper are: ao-sci
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The categories of this paper are: quant-ph
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The categories of this paper are: nucl-th
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The categories of this paper are: q-bio
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The categories of this paper are: solv-int
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The categories of this paper are: physics
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The categories of this paper are: nlin