Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Fra\"iss\'e limits in functional analysis   We provide a unified approach to Fra\"{\i}ss\'{e} limits in functional
analysis, including the Gurarij space, the Poulsen simplex, and their
noncommutative analogs. We obtain in this general framework many known and new
results about the Gurarij space and the Poulsen simplex, and at the same time
establish their noncommutative analogs. Particularly, we construct
noncommutative analogs of universal operators in the sense of Rota.

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The categories of this paper are: astro-ph
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The categories of this paper are: quant-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: adap-org
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The categories of this paper are: hep-ex
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The categories of this paper are: econ
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The categories of this paper are: stat
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The categories of this paper are: nucl-ex
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The categories of this paper are: hep-th
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The categories of this paper are: cond-mat
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The categories of this paper are: mtrl-th
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The categories of this paper are: nucl-th
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The categories of this paper are: nlin
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The categories of this paper are: supr-con
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The categories of this paper are: physics
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The categories of this paper are: atom-ph