Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Cuntz-Li relations, Inverse semigroups and Groupoids   In this paper we show that the universal C*-algebra satisfying the Cuntz-Li
relations is generated by an inverse semigroup of partial isometries. We apply
Exel's theory of tight representations to this inverse semigroup. We identify
the universal C*-algebra as the C*-algebra of the tight groupoid associated to
the inverse semigroup.

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The categories of this paper are: alg-geom
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The categories of this paper are: patt-sol
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The categories of this paper are: dg-ga
3
The categories of this paper are: physics
8
The categories of this paper are: hep-ex
34
The categories of this paper are: chem-ph
16
The categories of this paper are: stat
22
The categories of this paper are: chao-dyn
7
The categories of this paper are: hep-th
10
The categories of this paper are: q-bio
1
The categories of this paper are: cs
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The categories of this paper are: plasm-ph
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The categories of this paper are: comp-gas
0
The categories of this paper are: hep-ph
4
The categories of this paper are: cond-mat
11
The categories of this paper are: hep-lat