Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quasirandom permutations are characterized by 4-point densities   For permutations P and T of lengths |P|\le|T|, let t(P,T) be the probability
that the restriction of T to a random |P|-point set is (order) isomorphic to P.
We show that every sequence \{T_j\} of permutations such that |T_j|\to\infty
and t(P,T_j)\to 1/4! for every 4-point permutation P is quasirandom (that is,
t(P,T_j)\to 1/|P|! for every P). This answers a question posed by Graham.

35
The categories of this paper are: mtrl-th
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The categories of this paper are: plasm-ph
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The categories of this paper are: chem-ph
10
The categories of this paper are: q-bio
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The categories of this paper are: hep-lat
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The categories of this paper are: dg-ga
9
The categories of this paper are: nlin
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The categories of this paper are: atom-ph
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The categories of this paper are: adap-org
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The categories of this paper are: cmp-lg
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The categories of this paper are: alg-geom
1
The categories of this paper are: cs
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The categories of this paper are: astro-ph
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The categories of this paper are: chao-dyn
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The categories of this paper are: stat
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The categories of this paper are: funct-an