Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Isometric Actions are Quasidiagonal   We show every isometric action is quasidiagonal in a strong sense. This shows
that reduced crossed products by such actions are quasidiagonal or MF whenever
the reduced algebra of the acting group is quasidiagonal or MF.

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The categories of this paper are: chao-dyn
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The categories of this paper are: nucl-th
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The categories of this paper are: astro-ph
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The categories of this paper are: econ
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The categories of this paper are: funct-an
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The categories of this paper are: patt-sol
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The categories of this paper are: bayes-an
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The categories of this paper are: ao-sci
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The categories of this paper are: hep-th
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The categories of this paper are: hep-ex
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The categories of this paper are: q-bio
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The categories of this paper are: supr-con
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The categories of this paper are: adap-org
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The categories of this paper are: math-ph
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The categories of this paper are: alg-geom
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The categories of this paper are: physics