Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the exponential decay of the characteristic function of the quicksort
  distribution   We prove that the characteristic function of the quicksort distribution is
exponentially decreasing at infinity. As a consequence it follows that the
density of the quicksort distribution can be analytically extended to the
vicinity of the real line.

22
The categories of this paper are: chao-dyn
4
The categories of this paper are: cond-mat
15
The categories of this paper are: nucl-ex
19
The categories of this paper are: eess
5
The categories of this paper are: gr-qc
32
The categories of this paper are: atom-ph
26
The categories of this paper are: bayes-an
37
The categories of this paper are: supr-con
3
The categories of this paper are: physics
16
The categories of this paper are: stat
10
The categories of this paper are: q-bio
13
The categories of this paper are: quant-ph
11
The categories of this paper are: hep-lat
21
The categories of this paper are: adap-org
9
The categories of this paper are: nlin
34
The categories of this paper are: chem-ph