Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the Temporal Order of First-Passage Times in One-Dimensional Lattice
  Random Walks   A random walk problem with particles on discrete double infinite linear grids
is discussed. The model is based on the work of Montroll and others. A
probability connected with the problem is given in the form of integrals
containing modified Bessel functions of the first kind. By using several
transformations simpler integrals are obtained from which for two and three
particles asymptotic approximations are derived for large values of the
parameters. Expressions of the probability for $n$ particles are also derived.

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The categories of this paper are: supr-con
10
The categories of this paper are: q-bio
12
The categories of this paper are: nucl-th
6
The categories of this paper are: astro-ph
36
The categories of this paper are: cmp-lg
8
The categories of this paper are: hep-ex
7
The categories of this paper are: hep-th
9
The categories of this paper are: nlin
20
The categories of this paper are: acc-phys
26
The categories of this paper are: bayes-an
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The categories of this paper are: adap-org
24
The categories of this paper are: dg-ga
29
The categories of this paper are: funct-an
34
The categories of this paper are: chem-ph
32
The categories of this paper are: atom-ph
13
The categories of this paper are: quant-ph