Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Decomposing functions of Baire class $2$ on Polish spaces   We prove the Decomposability Conjecture for functions of Baire class $2$ on a
Polish space to a separable metrizable space. This partially answer an
important open problem in descriptive set theory.

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The categories of this paper are: atom-ph
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The categories of this paper are: astro-ph
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The categories of this paper are: supr-con
8
The categories of this paper are: hep-ex
1
The categories of this paper are: cs
14
The categories of this paper are: math-ph
10
The categories of this paper are: q-bio
21
The categories of this paper are: adap-org
11
The categories of this paper are: hep-lat
0
The categories of this paper are: hep-ph
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The categories of this paper are: ao-sci
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The categories of this paper are: chem-ph
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The categories of this paper are: patt-sol
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The categories of this paper are: nucl-th
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The categories of this paper are: alg-geom
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The categories of this paper are: econ