Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Perfect boundaries in rotor-router aggregation on cylinders   We study a rotor-router version of the internal diffusion-limited aggregation
introduced by J.Propp. The existing estimations of boundary fluctuations of the
aggregation cluster show that they grow not faster than $O(\log r)$ with the
cluster radius $r$. We consider the rotor-router internal DLA on the
semi-infinite cylinder and prove a constant width of boundary fluctuations not
depending on the radius of the cylinder.

31
The categories of this paper are: ao-sci
12
The categories of this paper are: nucl-th
25
The categories of this paper are: patt-sol
0
The categories of this paper are: hep-ph
13
The categories of this paper are: quant-ph
28
The categories of this paper are: alg-geom
27
The categories of this paper are: comp-gas
3
The categories of this paper are: physics
7
The categories of this paper are: hep-th
35
The categories of this paper are: mtrl-th
32
The categories of this paper are: atom-ph
1
The categories of this paper are: cs
24
The categories of this paper are: dg-ga
19
The categories of this paper are: eess
30
The categories of this paper are: q-alg
11
The categories of this paper are: hep-lat