Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Covering certain Wreath Products with Proper Subgroups   For a non-cyclic finite group $X$ let $\sigma(X)$ be the least number of
proper subgroups of $X$ whose union is $X$. Precise formulas or estimates are
given for $\sigma(S \wr C_{m})$ for certain nonabelian finite simple groups $S$
where $C_m$ is a cyclic group of order $m$.

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The categories of this paper are: physics
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The categories of this paper are: hep-th
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The categories of this paper are: acc-phys
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The categories of this paper are: ao-sci
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The categories of this paper are: math-ph
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The categories of this paper are: patt-sol
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The categories of this paper are: gr-qc
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The categories of this paper are: funct-an
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The categories of this paper are: chem-ph
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The categories of this paper are: hep-lat
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The categories of this paper are: adap-org
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The categories of this paper are: stat
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The categories of this paper are: chao-dyn
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The categories of this paper are: hep-ex
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The categories of this paper are: plasm-ph
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The categories of this paper are: nucl-th