Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A structural characterization of numeraires of convex sets of
  nonnegative random variables   We introduce the concept of numeraires of convex sets in the nonnegative
orthant of the topological vector space of all random variables built over a
probability space. A necessary and sufficient condition for an element of a
convex set to be its numeraire is given, inspired from ideas in financial
mathematics.

5
The categories of this paper are: gr-qc
8
The categories of this paper are: hep-ex
7
The categories of this paper are: hep-th
17
The categories of this paper are: q-fin
10
The categories of this paper are: q-bio
11
The categories of this paper are: hep-lat
24
The categories of this paper are: dg-ga
15
The categories of this paper are: nucl-ex
3
The categories of this paper are: physics
36
The categories of this paper are: cmp-lg
4
The categories of this paper are: cond-mat
28
The categories of this paper are: alg-geom
37
The categories of this paper are: supr-con
31
The categories of this paper are: ao-sci
32
The categories of this paper are: atom-ph
23
The categories of this paper are: solv-int