Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Green function of a random walk in a cone   This paper studies the asymptotic behavior of the Green function of a
multidimensional random walk killed when leaving a convex cone with smooth
boundary. Our results imply uniqueness, up to a multiplicative factor, of the
positive harmonic function for the killed random walk.

0
The categories of this paper are: hep-ph
30
The categories of this paper are: q-alg
12
The categories of this paper are: nucl-th
36
The categories of this paper are: cmp-lg
10
The categories of this paper are: q-bio
16
The categories of this paper are: stat
27
The categories of this paper are: comp-gas
23
The categories of this paper are: solv-int
22
The categories of this paper are: chao-dyn
25
The categories of this paper are: patt-sol
37
The categories of this paper are: supr-con
21
The categories of this paper are: adap-org
6
The categories of this paper are: astro-ph
9
The categories of this paper are: nlin
29
The categories of this paper are: funct-an
18
The categories of this paper are: econ