Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Models of space-time random fields on the sphere   We study general models of random fields associated with non-local equations
in time and space. We discuss the properties of the corresponding angular power
spectrum and find asymptotic results in terms of random time changes.

6
The categories of this paper are: astro-ph
36
The categories of this paper are: cmp-lg
0
The categories of this paper are: hep-ph
20
The categories of this paper are: acc-phys
15
The categories of this paper are: nucl-ex
1
The categories of this paper are: cs
37
The categories of this paper are: supr-con
26
The categories of this paper are: bayes-an
27
The categories of this paper are: comp-gas
18
The categories of this paper are: econ
4
The categories of this paper are: cond-mat
29
The categories of this paper are: funct-an
25
The categories of this paper are: patt-sol
14
The categories of this paper are: math-ph
11
The categories of this paper are: hep-lat
24
The categories of this paper are: dg-ga