Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Tetrahedron Zamolodchikov Algebra and the AdS5 x S5 S-matrix   The S-matrix of the $AdS_5 \times S^5$ string theory is a tensor product of
two centrally extended su(2|2) S-matrices, each of which is related to the
R-matrix of the Hubbard model. The R-matrix of the Hubbard model was first
found by Shastry, who ingeniously exploited the fact that, for zero coupling,
the Hubbard model can be decomposed into two XX models. In this article, we
review and clarify this construction from the AdS/CFT perspective and
investigate the implications this has for the $AdS_5 \times S^5$ S-matrix.

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The categories of this paper are: patt-sol
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The categories of this paper are: hep-lat
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The categories of this paper are: eess
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The categories of this paper are: q-fin
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The categories of this paper are: nucl-th
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The categories of this paper are: funct-an
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The categories of this paper are: astro-ph
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The categories of this paper are: physics
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The categories of this paper are: comp-gas
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The categories of this paper are: q-bio
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The categories of this paper are: nucl-ex
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The categories of this paper are: cs
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The categories of this paper are: chem-ph
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The categories of this paper are: ao-sci
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The categories of this paper are: supr-con
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The categories of this paper are: atom-ph