Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Stopping times are hitting times: a natural representation   There exists a simple, didactically useful one-to-one relationship between
stopping times and adapted c\`agl\`ad (LCRL) processes that are non-increasing
and take the values 0 and 1 only. As a consequence, stopping times are always
hitting times.

24
The categories of this paper are: dg-ga
34
The categories of this paper are: chem-ph
25
The categories of this paper are: patt-sol
9
The categories of this paper are: nlin
7
The categories of this paper are: hep-th
13
The categories of this paper are: quant-ph
14
The categories of this paper are: math-ph
36
The categories of this paper are: cmp-lg
28
The categories of this paper are: alg-geom
23
The categories of this paper are: solv-int
5
The categories of this paper are: gr-qc
18
The categories of this paper are: econ
16
The categories of this paper are: stat
10
The categories of this paper are: q-bio
0
The categories of this paper are: hep-ph
33
The categories of this paper are: plasm-ph