Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: q-Analogue of Wilson's theorem   We give q-analogues of Wilson's theorem for the primes congruent 1 and 3
modulo 4 respectively. And q-analogues of two congruences due to Mordell and
Chowla are also established.

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The categories of this paper are: cond-mat
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The categories of this paper are: q-alg
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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: hep-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: q-bio
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The categories of this paper are: mtrl-th
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The categories of this paper are: nlin
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The categories of this paper are: patt-sol
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The categories of this paper are: nucl-ex
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The categories of this paper are: eess
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The categories of this paper are: hep-ex
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The categories of this paper are: bayes-an
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The categories of this paper are: gr-qc
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The categories of this paper are: cs