Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Random walks on randomly oriented lattices   Simple random walks on various types of partially horizontally oriented
regular lattices are considered. The horizontal orientations of the lattices
can be of various types (deterministic or random) and depending on the nature
of the orientation the asymptotic behaviour of the random walk is shown to be
recurrent or transient. In particular, for randomly horizontally oriented
lattices the random walk is almost surely transient.

6
The categories of this paper are: astro-ph
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The categories of this paper are: hep-lat
8
The categories of this paper are: hep-ex
32
The categories of this paper are: atom-ph
30
The categories of this paper are: q-alg
16
The categories of this paper are: stat
22
The categories of this paper are: chao-dyn
17
The categories of this paper are: q-fin
26
The categories of this paper are: bayes-an
0
The categories of this paper are: hep-ph
19
The categories of this paper are: eess
24
The categories of this paper are: dg-ga
25
The categories of this paper are: patt-sol
10
The categories of this paper are: q-bio
29
The categories of this paper are: funct-an
27
The categories of this paper are: comp-gas