Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The R-operator for Modular Double   We construct the R-operator -- solution of the Yang-Baxter equation acting in
the tensor product of two infinite-dimensional representations of Faddeev's
modular double. This R-operator intertwines the product of two L-operators
associated with the modular double and it is built from three basic operators
generating the permutation group of four parameters S_4.

13
The categories of this paper are: quant-ph
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The categories of this paper are: dg-ga
11
The categories of this paper are: hep-lat
0
The categories of this paper are: hep-ph
37
The categories of this paper are: supr-con
1
The categories of this paper are: cs
31
The categories of this paper are: ao-sci
5
The categories of this paper are: gr-qc
34
The categories of this paper are: chem-ph
3
The categories of this paper are: physics
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The categories of this paper are: patt-sol
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The categories of this paper are: acc-phys
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The categories of this paper are: chao-dyn
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The categories of this paper are: nucl-th
27
The categories of this paper are: comp-gas
10
The categories of this paper are: q-bio