Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Free infinite divisibility and free multiplicative mixtures of the
  Wigner distribution   We find necessary and sufficient conditions for the free additive infinite
divisibility of some free multiplicative convolutions with the Wigner, the
arcsine, the free Poisson and other distributions, including explicit examples.

17
The categories of this paper are: q-fin
16
The categories of this paper are: stat
5
The categories of this paper are: gr-qc
29
The categories of this paper are: funct-an
24
The categories of this paper are: dg-ga
14
The categories of this paper are: math-ph
37
The categories of this paper are: supr-con
35
The categories of this paper are: mtrl-th
9
The categories of this paper are: nlin
4
The categories of this paper are: cond-mat
7
The categories of this paper are: hep-th
26
The categories of this paper are: bayes-an
27
The categories of this paper are: comp-gas
13
The categories of this paper are: quant-ph
22
The categories of this paper are: chao-dyn
23
The categories of this paper are: solv-int