Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: An Isoperimetric Function for Bestvina-Brady Groups   Given a right-angled Artin group A, the associated Bestvina-Brady group is
defined to be the kernel of the homomorphism A \to \mathbb{Z} that maps each
generator in the standard presentation of A to a fixed generator of \mathbb{Z}.
We prove that the Dehn function of an arbitrary finitely presented
Bestvina-Brady group is bounded above by n^4. This is the best possible
universal upper bound.

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The categories of this paper are: nucl-ex
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The categories of this paper are: hep-ph
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The categories of this paper are: eess
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The categories of this paper are: nucl-th
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The categories of this paper are: mtrl-th
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The categories of this paper are: solv-int
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The categories of this paper are: math-ph
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The categories of this paper are: comp-gas
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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: alg-geom
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The categories of this paper are: q-fin
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The categories of this paper are: hep-th
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The categories of this paper are: plasm-ph
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The categories of this paper are: q-bio
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The categories of this paper are: physics