Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the splitting principle for cohomological invariants of reflection
  groups   Let $\mathrm{k}_{0}$ be a field and $W$ a finite orthogonal reflection group
over $\mathrm{k}_{0}$. We prove Serre's splitting principle for cohomological
invariants of $W$ with values in Rost's cycle modules (over $\mathrm{k}_{0}$)
if the characteristic of $\mathrm{k}_{0}$ is coprime to $|W|$. We then show
that this principle for such groups holds also for Witt- and Milnor-Witt
$K$-theory invariants.

37
The categories of this paper are: supr-con
14
The categories of this paper are: math-ph
20
The categories of this paper are: acc-phys
35
The categories of this paper are: mtrl-th
25
The categories of this paper are: patt-sol
30
The categories of this paper are: q-alg
32
The categories of this paper are: atom-ph
24
The categories of this paper are: dg-ga
6
The categories of this paper are: astro-ph
29
The categories of this paper are: funct-an
9
The categories of this paper are: nlin
16
The categories of this paper are: stat
36
The categories of this paper are: cmp-lg
1
The categories of this paper are: cs
28
The categories of this paper are: alg-geom
31
The categories of this paper are: ao-sci