Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Multivariate subordination of stable processes   This article is devoted to some time-changed stochastic models based on
multivariate stable processes. The considered models have several advantages in
comparison with classical time-changed Brownian motions - for instance, it
turns out that they are more appropriate for describing stock prices if the
amount of transactions is used for a stochastic time change. In this paper, we
provide a detailed discussion of the model, which is based on two popular
concepts - multivariate subordination and L{\'e}vy copulas.

17
The categories of this paper are: q-fin
33
The categories of this paper are: plasm-ph
31
The categories of this paper are: ao-sci
35
The categories of this paper are: mtrl-th
27
The categories of this paper are: comp-gas
11
The categories of this paper are: hep-lat
8
The categories of this paper are: hep-ex
7
The categories of this paper are: hep-th
36
The categories of this paper are: cmp-lg
5
The categories of this paper are: gr-qc
1
The categories of this paper are: cs
24
The categories of this paper are: dg-ga
15
The categories of this paper are: nucl-ex
19
The categories of this paper are: eess
4
The categories of this paper are: cond-mat
0
The categories of this paper are: hep-ph