Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Cohomological invariants of odd degree Jordan algebras   In this paper we determine all possible cohomological invariants of
Aut(J)-torsors in Galois cohomology with mod 2 coefficients (characteristic of
the base field not 2), for J a split central simple Jordan algebra of odd
degree n>=3. This has already been done for J of orthogonal and exceptional
type, and we extend these results to unitary and symplectic type. We will use
our results to compute the essential dimensions of some groups, for example we
show that ed(PSp(2n))=n+1 for n odd.

15
The categories of this paper are: nucl-ex
31
The categories of this paper are: ao-sci
28
The categories of this paper are: alg-geom
10
The categories of this paper are: q-bio
29
The categories of this paper are: funct-an
24
The categories of this paper are: dg-ga
21
The categories of this paper are: adap-org
35
The categories of this paper are: mtrl-th
9
The categories of this paper are: nlin
17
The categories of this paper are: q-fin
8
The categories of this paper are: hep-ex
32
The categories of this paper are: atom-ph
6
The categories of this paper are: astro-ph
12
The categories of this paper are: nucl-th
14
The categories of this paper are: math-ph
3
The categories of this paper are: physics