Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Archimedean period relations and period relations for Rankin-Selberg
  convolutions   We prove the Archimedean period relations for Rankin-Selberg convolutions for
$\mathrm{GL}(n)\times \mathrm{GL}(n-1)$. This implies the period relations for
critical values of the Rankin-Selberg L-functions for $\mathrm{GL}(n)\times
\mathrm{GL}(n-1)$.

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The categories of this paper are: chem-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: gr-qc
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The categories of this paper are: patt-sol
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The categories of this paper are: cmp-lg
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The categories of this paper are: cs
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The categories of this paper are: q-fin
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The categories of this paper are: hep-lat
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The categories of this paper are: astro-ph
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The categories of this paper are: hep-th
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The categories of this paper are: math-ph
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The categories of this paper are: chao-dyn
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The categories of this paper are: alg-geom
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The categories of this paper are: comp-gas
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The categories of this paper are: stat
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The categories of this paper are: funct-an