Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Les exposants de Liapounoff du flot de Teichm\"{u}ller   The purpose of the paper under review is to explain the main ideas and the
main ingredients of the involved and delicate work of A. Eskin, M. Kontsevich
and A. Zorich concerning the sum of the positive Lyapunov exponents of the
so-called Kontsevich- Zorich cocycle acting on the first cohomology spaces of
translation surfaces.

28
The categories of this paper are: alg-geom
4
The categories of this paper are: cond-mat
6
The categories of this paper are: astro-ph
33
The categories of this paper are: plasm-ph
31
The categories of this paper are: ao-sci
24
The categories of this paper are: dg-ga
16
The categories of this paper are: stat
34
The categories of this paper are: chem-ph
5
The categories of this paper are: gr-qc
8
The categories of this paper are: hep-ex
13
The categories of this paper are: quant-ph
18
The categories of this paper are: econ
11
The categories of this paper are: hep-lat
0
The categories of this paper are: hep-ph
21
The categories of this paper are: adap-org
37
The categories of this paper are: supr-con