Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Nonhermitean Random Matrix Models : a Free Random Variable Approach   Using the standard concepts of free random variables, we show that for a
large class of nonhermitean random matrix models, the support of the eigenvalue
distribution follows from their hermitean analogs using a conformal
transformation. We also extend the concepts of free random variables to the
class of nonhermitean matrices, and apply them to the models discussed by
Ginibre-Girko (elliptic ensemble) and Mahaux-Weidenm\"uller (chaotic resonance
scattering).

2
The categories of this paper are: math
8
The categories of this paper are: hep-ex
34
The categories of this paper are: chem-ph
13
The categories of this paper are: quant-ph
25
The categories of this paper are: patt-sol
29
The categories of this paper are: funct-an
33
The categories of this paper are: plasm-ph
17
The categories of this paper are: q-fin
32
The categories of this paper are: atom-ph
37
The categories of this paper are: supr-con
31
The categories of this paper are: ao-sci
27
The categories of this paper are: comp-gas
36
The categories of this paper are: cmp-lg
5
The categories of this paper are: gr-qc
18
The categories of this paper are: econ
35
The categories of this paper are: mtrl-th