Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A novel exact solution of the 2+1-dimensional radial Dirac equation for
  the generalized Dirac oscillator with the inverse potentials   The generalized Dirac oscillator as one of the exact solvable model in
quantum mechanics was introduced in 2+1-dimensional world in this paper. What
is more, the general expressions of the exact solutions for these models with
the inverse cubic, quartic, quintic and sixtic power potentials in radial Dirac
equation were further given by means of the Bethe ansatz method. And finally,
the corresponding exact solutions in this paper were further discussed.

20
The categories of this paper are: acc-phys
30
The categories of this paper are: q-alg
14
The categories of this paper are: math-ph
4
The categories of this paper are: cond-mat
25
The categories of this paper are: patt-sol
12
The categories of this paper are: nucl-th
18
The categories of this paper are: econ
2
The categories of this paper are: math
15
The categories of this paper are: nucl-ex
28
The categories of this paper are: alg-geom
17
The categories of this paper are: q-fin
6
The categories of this paper are: astro-ph
9
The categories of this paper are: nlin
33
The categories of this paper are: plasm-ph
36
The categories of this paper are: cmp-lg
23
The categories of this paper are: solv-int