Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On computing the entropy of braids   We consider in this paper the problem of computing the entropy of a braid. We
recall its definition and construct, for each braid, a sequence of real
numbers, whose limit is its entropy. We state one conjecture about the
convergence speed, and two about the braids that have high entropy, but are
written with few letters.

6
The categories of this paper are: astro-ph
7
The categories of this paper are: hep-th
4
The categories of this paper are: cond-mat
14
The categories of this paper are: math-ph
25
The categories of this paper are: patt-sol
29
The categories of this paper are: funct-an
18
The categories of this paper are: econ
10
The categories of this paper are: q-bio
28
The categories of this paper are: alg-geom
23
The categories of this paper are: solv-int
11
The categories of this paper are: hep-lat
26
The categories of this paper are: bayes-an
8
The categories of this paper are: hep-ex
22
The categories of this paper are: chao-dyn
24
The categories of this paper are: dg-ga
19
The categories of this paper are: eess