Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Propagating sharp group homology decompositions   A collection C of subgroups of a finite group G can give rise to three
different standard formulas for the cohomology of G in terms of either: the
subgroups in C; or their centralizers; or their normalizers. We give a short
but systematic study of the relationship among such formulas for nine standard
collections C of p-subgroups, obtaining some new formulas in the process. To do
this, we exhibit some sufficient conditions on the poset C which imply
comparison results.

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The categories of this paper are: gr-qc
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The categories of this paper are: hep-ph
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The categories of this paper are: stat
1
The categories of this paper are: cs
25
The categories of this paper are: patt-sol
10
The categories of this paper are: q-bio
33
The categories of this paper are: plasm-ph
7
The categories of this paper are: hep-th
15
The categories of this paper are: nucl-ex
28
The categories of this paper are: alg-geom
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The categories of this paper are: q-fin
27
The categories of this paper are: comp-gas
24
The categories of this paper are: dg-ga
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The categories of this paper are: mtrl-th
3
The categories of this paper are: physics
26
The categories of this paper are: bayes-an