Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Pseudocyclic association schemes arising from the actions of PGL(2,2^m)
  and P\Gamma L(2,2^m)   The action of $PGL(2,2^m)$ on the set of exterior lines to a nonsingular
conic in $PG(2,2^m)$ affords an association scheme, which was shown to be
pseudocyclic in Hollmann's thesis in 1982. It was further conjectured in
Hollmann's thesis that the orbital scheme of $P\Gamma L(2,2^m)$ on the set of
exterior lines to a nonsingular conic in $PG(2,2^m)$ is also pseudocyclic if
$m$ is an odd prime. We confirm this conjecture in this paper. As a by-product,
we obtain a class of Latin square type strongly regular graphs on
nonprime-power number of points.

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The categories of this paper are: comp-gas
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The categories of this paper are: chao-dyn
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The categories of this paper are: physics
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The categories of this paper are: atom-ph
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The categories of this paper are: q-bio
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The categories of this paper are: supr-con
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The categories of this paper are: stat
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The categories of this paper are: hep-lat
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The categories of this paper are: solv-int
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The categories of this paper are: funct-an
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The categories of this paper are: eess
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The categories of this paper are: ao-sci
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The categories of this paper are: plasm-ph
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The categories of this paper are: cond-mat
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The categories of this paper are: quant-ph
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The categories of this paper are: econ