Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Algebraic invariants for Bestvina-Brady groups   Bestvina-Brady groups arise as kernels of length homomorphisms from
right-angled Artin groups G_\G to the integers. Under some connectivity
assumptions on the flag complex \Delta_\G, we compute several algebraic
invariants of such a group N_\G, directly from the underlying graph \G. As an
application, we give examples of Bestvina-Brady groups which are not isomorphic
to any Artin group or arrangement group.

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The categories of this paper are: astro-ph
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The categories of this paper are: econ
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The categories of this paper are: nucl-th
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The categories of this paper are: atom-ph
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The categories of this paper are: math-ph
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The categories of this paper are: patt-sol
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The categories of this paper are: cs
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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: stat
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The categories of this paper are: dg-ga
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The categories of this paper are: gr-qc
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The categories of this paper are: nlin
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The categories of this paper are: cmp-lg
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The categories of this paper are: acc-phys
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The categories of this paper are: hep-ex