Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Stable commutator length of a Dehn twist   It is proved that the stable commutator length of a Dehn twist in the mapping
class group is positive and the tenth power of a Dehn twist about a
nonseparating simple closed curve is a product of two commutators. As an
application a new proof of the fact that the growth rate of a Dehn twist is
linear is given.

25
The categories of this paper are: patt-sol
19
The categories of this paper are: eess
35
The categories of this paper are: mtrl-th
9
The categories of this paper are: nlin
22
The categories of this paper are: chao-dyn
28
The categories of this paper are: alg-geom
7
The categories of this paper are: hep-th
34
The categories of this paper are: chem-ph
26
The categories of this paper are: bayes-an
8
The categories of this paper are: hep-ex
1
The categories of this paper are: cs
36
The categories of this paper are: cmp-lg
3
The categories of this paper are: physics
10
The categories of this paper are: q-bio
16
The categories of this paper are: stat
5
The categories of this paper are: gr-qc