Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Examples of Nichols algebras associated to upper triangular solutions of
  the Yang-Baxter equation in rank 3   We determine some Nichols algebras that admit a non-trivial quadratic
relation associated to some families of upper triangular solutions of the
Yang-Baxter equation of dimension 3.

11
The categories of this paper are: hep-lat
10
The categories of this paper are: q-bio
3
The categories of this paper are: physics
29
The categories of this paper are: funct-an
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The categories of this paper are: comp-gas
21
The categories of this paper are: adap-org
6
The categories of this paper are: astro-ph
25
The categories of this paper are: patt-sol
14
The categories of this paper are: math-ph
26
The categories of this paper are: bayes-an
20
The categories of this paper are: acc-phys
13
The categories of this paper are: quant-ph
31
The categories of this paper are: ao-sci
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The categories of this paper are: eess
8
The categories of this paper are: hep-ex
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The categories of this paper are: nucl-ex