Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A coupled map lattice model for spontaneous pore formation in anodic
  oxidation   We construct a coupled map lattice model for the spontaneous pore formation
in anodic oxidation in two dimensions and perform numerical simulations, after
we explain steady flat solutions, their linear stability and a single pore
solution for a model of Parkhutik and Shershulsky.

31
The categories of this paper are: ao-sci
36
The categories of this paper are: cmp-lg
8
The categories of this paper are: hep-ex
13
The categories of this paper are: quant-ph
14
The categories of this paper are: math-ph
11
The categories of this paper are: hep-lat
34
The categories of this paper are: chem-ph
10
The categories of this paper are: q-bio
25
The categories of this paper are: patt-sol
15
The categories of this paper are: nucl-ex
17
The categories of this paper are: q-fin
22
The categories of this paper are: chao-dyn
32
The categories of this paper are: atom-ph
29
The categories of this paper are: funct-an
16
The categories of this paper are: stat
2
The categories of this paper are: math