Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On homogeneous and oscillating random walks on the integers   Considering homogeneous and oscillating random walks on the integers, we
simplify classical works on recurrence of Spitzer and Kemperman, respectively.
Some links with renewal theory are discussed.

27
The categories of this paper are: comp-gas
35
The categories of this paper are: mtrl-th
31
The categories of this paper are: ao-sci
6
The categories of this paper are: astro-ph
37
The categories of this paper are: supr-con
5
The categories of this paper are: gr-qc
18
The categories of this paper are: econ
33
The categories of this paper are: plasm-ph
9
The categories of this paper are: nlin
24
The categories of this paper are: dg-ga
10
The categories of this paper are: q-bio
36
The categories of this paper are: cmp-lg
13
The categories of this paper are: quant-ph
19
The categories of this paper are: eess
15
The categories of this paper are: nucl-ex
3
The categories of this paper are: physics