Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Poincar\'e polynomial of elliptic arrangements is not a specialization
  of the Tutte polynomial   The Poincar\'e polynomial of the complement of an arrangements in a non
compact group is a specialization of the $G$-Tutte polynomial associated with
the arrangement. In this article we show two unimodular elliptic arrangements
(built up from two graphs) with the same Tutte polynomial, having different
Betti numbers.

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The categories of this paper are: ao-sci
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The categories of this paper are: nucl-ex
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The categories of this paper are: astro-ph
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The categories of this paper are: alg-geom
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The categories of this paper are: q-alg
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The categories of this paper are: supr-con
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The categories of this paper are: q-bio
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The categories of this paper are: dg-ga
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The categories of this paper are: nlin
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The categories of this paper are: solv-int
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The categories of this paper are: cmp-lg
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The categories of this paper are: adap-org
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The categories of this paper are: math-ph
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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: cs