Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Ext vanishing and infinite Auslander-Buchsbaum   A vanishing theorem is proved for Ext groups over non-commutative graded
algebras. Along the way, an "infinite" version is proved of the non-commutative
Auslander-Buchsbaum theorem.

15
The categories of this paper are: nucl-ex
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The categories of this paper are: math-ph
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The categories of this paper are: quant-ph
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The categories of this paper are: stat
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The categories of this paper are: atom-ph
12
The categories of this paper are: nucl-th
4
The categories of this paper are: cond-mat
24
The categories of this paper are: dg-ga
6
The categories of this paper are: astro-ph
20
The categories of this paper are: acc-phys
10
The categories of this paper are: q-bio
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The categories of this paper are: bayes-an
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The categories of this paper are: funct-an
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The categories of this paper are: hep-ex
1
The categories of this paper are: cs
25
The categories of this paper are: patt-sol