Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Normal Reflection Subgroups   We study normal reflection subgroups of complex reflection groups. Our point
of view leads to a refinement of a theorem of Orlik and Solomon to the effect
that the generating function for fixed-space dimension over a reflection group
is a product of linear factors involving generalized exponents. Our refinement
gives a uniform proof and generalization of a recent theorem of the second
author.

37
The categories of this paper are: supr-con
5
The categories of this paper are: gr-qc
29
The categories of this paper are: funct-an
18
The categories of this paper are: econ
1
The categories of this paper are: cs
31
The categories of this paper are: ao-sci
17
The categories of this paper are: q-fin
6
The categories of this paper are: astro-ph
16
The categories of this paper are: stat
7
The categories of this paper are: hep-th
15
The categories of this paper are: nucl-ex
10
The categories of this paper are: q-bio
25
The categories of this paper are: patt-sol
26
The categories of this paper are: bayes-an
22
The categories of this paper are: chao-dyn
4
The categories of this paper are: cond-mat