Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Superintegrable systems with spin in two- and three-dimensional
  Euclidean spaces   The concept of superintegrability in quantum mechanics is extended to the
case of a particle with spin s=1/2 interacting with one of spin s=0.
Non-trivial superintegrable systems with 8- and 9-dimensional Lie algebras of
first-order integrals of motion are constructed in two- and three-dimensional
spaces, respectively.

17
The categories of this paper are: q-fin
12
The categories of this paper are: nucl-th
1
The categories of this paper are: cs
27
The categories of this paper are: comp-gas
33
The categories of this paper are: plasm-ph
24
The categories of this paper are: dg-ga
7
The categories of this paper are: hep-th
28
The categories of this paper are: alg-geom
5
The categories of this paper are: gr-qc
19
The categories of this paper are: eess
20
The categories of this paper are: acc-phys
10
The categories of this paper are: q-bio
0
The categories of this paper are: hep-ph
37
The categories of this paper are: supr-con
25
The categories of this paper are: patt-sol
35
The categories of this paper are: mtrl-th