Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the family of Wigner functions for N-level quantum system   The family of unitary non-equivalent Weyl-Stratonovich kernels determining
the Wigner probability distribution function of an arbitrary N-level quantum
system is constructed.

21
The categories of this paper are: adap-org
7
The categories of this paper are: hep-th
32
The categories of this paper are: atom-ph
28
The categories of this paper are: alg-geom
36
The categories of this paper are: cmp-lg
27
The categories of this paper are: comp-gas
0
The categories of this paper are: hep-ph
30
The categories of this paper are: q-alg
12
The categories of this paper are: nucl-th
24
The categories of this paper are: dg-ga
22
The categories of this paper are: chao-dyn
15
The categories of this paper are: nucl-ex
11
The categories of this paper are: hep-lat
9
The categories of this paper are: nlin
34
The categories of this paper are: chem-ph
19
The categories of this paper are: eess