Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Some conjectures on codes   Variable-length codes are the bases of the free submonoids of a free monoid.
There are some important longstanding open questions about the structure of
finite maximal codes. In this paper we discuss this conjectures and their
relations with factorizations of cyclic groups.

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The categories of this paper are: funct-an
10
The categories of this paper are: q-bio
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The categories of this paper are: supr-con
20
The categories of this paper are: acc-phys
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The categories of this paper are: comp-gas
5
The categories of this paper are: gr-qc
31
The categories of this paper are: ao-sci
3
The categories of this paper are: physics
26
The categories of this paper are: bayes-an
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The categories of this paper are: mtrl-th
4
The categories of this paper are: cond-mat
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The categories of this paper are: quant-ph
12
The categories of this paper are: nucl-th
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The categories of this paper are: dg-ga
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The categories of this paper are: eess
33
The categories of this paper are: plasm-ph