Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Combinatorics of certain abelian Lie group arrangements and chromatic
  quasi-polynomials   The purpose of this paper is twofold. Firstly, we generalize the notion of
characteristic polynomials of hyperplane and toric arrangements to those of
certain abelian Lie group arrangements. Secondly, we give two interpretations
for the chromatic quasi-polynomials and their constituents through subspace and
toric viewpoints.

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The categories of this paper are: math-ph
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The categories of this paper are: chem-ph
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The categories of this paper are: q-fin
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The categories of this paper are: comp-gas
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The categories of this paper are: patt-sol
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The categories of this paper are: hep-ex
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The categories of this paper are: ao-sci
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The categories of this paper are: q-alg
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The categories of this paper are: chao-dyn
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The categories of this paper are: atom-ph
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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-th
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The categories of this paper are: funct-an
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The categories of this paper are: solv-int
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The categories of this paper are: nlin