Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the number of extreme measures with fixed marginals   In this paper we give an improved upper bound, as compared to the one given
in [3] for the number of extreme points of the convex set of all G-invariant
probability measures on X*Y with given marginals of full support.

12
The categories of this paper are: nucl-th
29
The categories of this paper are: funct-an
8
The categories of this paper are: hep-ex
3
The categories of this paper are: physics
23
The categories of this paper are: solv-int
18
The categories of this paper are: econ
30
The categories of this paper are: q-alg
32
The categories of this paper are: atom-ph
34
The categories of this paper are: chem-ph
13
The categories of this paper are: quant-ph
35
The categories of this paper are: mtrl-th
22
The categories of this paper are: chao-dyn
6
The categories of this paper are: astro-ph
11
The categories of this paper are: hep-lat
21
The categories of this paper are: adap-org
24
The categories of this paper are: dg-ga