Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Convex hulls of several multidimensional Gaussian random walks   We derive explicit formulae for the expected volume and the expected number
of facets of the convex hull of several multidimensional Gaussian random walks
in terms of the Gaussian persistence probabilities. Special cases include the
already known results about the convex hull of a single Gaussian random walk
and the $d$-dimensional Gaussian polytope with or without the origin.

5
The categories of this paper are: gr-qc
23
The categories of this paper are: solv-int
33
The categories of this paper are: plasm-ph
15
The categories of this paper are: nucl-ex
11
The categories of this paper are: hep-lat
24
The categories of this paper are: dg-ga
32
The categories of this paper are: atom-ph
8
The categories of this paper are: hep-ex
27
The categories of this paper are: comp-gas
12
The categories of this paper are: nucl-th
37
The categories of this paper are: supr-con
3
The categories of this paper are: physics
22
The categories of this paper are: chao-dyn
9
The categories of this paper are: nlin
29
The categories of this paper are: funct-an
6
The categories of this paper are: astro-ph