Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Peak reduction and finite presentations for automorphism groups of
  right-angled Artin groups   We generalize the peak-reduction algorithm (Whitehead's theorem) for free
groups to a theorem about a general right-angled Artin group A_Gamma. As an
application, we find a finite presentation for the automorphism group Aut
A_Gamma that generalizes McCool's presentation for the automorphism group of a
finite rank free group. We also give consider a stronger generalization of
peak-reduction, giving a counterexample and proving a special case.

27
The categories of this paper are: comp-gas
17
The categories of this paper are: q-fin
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The categories of this paper are: chao-dyn
16
The categories of this paper are: stat
14
The categories of this paper are: math-ph
23
The categories of this paper are: solv-int
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The categories of this paper are: supr-con
6
The categories of this paper are: astro-ph
3
The categories of this paper are: physics
5
The categories of this paper are: gr-qc
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The categories of this paper are: cmp-lg
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The categories of this paper are: dg-ga
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The categories of this paper are: patt-sol
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The categories of this paper are: nucl-th
11
The categories of this paper are: hep-lat
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The categories of this paper are: q-alg