Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quadratic unipotent blocks in general linear, unitary and symplectic
  groups   An irreducible ordinary character of a finite reductive group is called
quadratic unipotent if it corresponds under Jordan decomposition to a
semisimple element $s$ in a dual group such that $s^2=1$. We prove that there
is a bijection between, on the one hand the set of quadratic unipotent
characters of $GL(n,q)$ or $U(n,q)$ for all $n \geq 0$ and on the other hand,
the set of quadratic unipotent characters of $Sp(2n,q)$ for all $n \geq 0$. We
then extend this correspondence to $\ell$-blocks for certain $\ell$ not
dividing $q$.

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The categories of this paper are: bayes-an
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The categories of this paper are: funct-an
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The categories of this paper are: alg-geom
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The categories of this paper are: eess
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The categories of this paper are: patt-sol
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The categories of this paper are: solv-int
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The categories of this paper are: hep-th
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The categories of this paper are: stat
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The categories of this paper are: nucl-ex
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The categories of this paper are: adap-org
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The categories of this paper are: cond-mat
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The categories of this paper are: econ
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The categories of this paper are: comp-gas
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The categories of this paper are: atom-ph
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The categories of this paper are: nlin
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The categories of this paper are: gr-qc