Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Outer billiard outside regular polygons   We consider outer billiard outside regular convex polygons. We deal with the
case of regular polygons with $\{3,4,5,6,10\}$ sides, and we describe the
symbolic dynamics of the map and compute the complexity of the language.

29
The categories of this paper are: funct-an
30
The categories of this paper are: q-alg
23
The categories of this paper are: solv-int
11
The categories of this paper are: hep-lat
20
The categories of this paper are: acc-phys
27
The categories of this paper are: comp-gas
5
The categories of this paper are: gr-qc
33
The categories of this paper are: plasm-ph
26
The categories of this paper are: bayes-an
34
The categories of this paper are: chem-ph
14
The categories of this paper are: math-ph
1
The categories of this paper are: cs
35
The categories of this paper are: mtrl-th
32
The categories of this paper are: atom-ph
36
The categories of this paper are: cmp-lg
37
The categories of this paper are: supr-con