Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Bound States of the Dirac Equation for a Class of Effective Quadratic
  Plus Inversely Quadratic Potentials   The Dirac equation is exactly solved for a pseudoscalar linear plus
Coulomb-like potential in a two-dimensional world. This sort of potential gives
rise to an effective quadratic plus inversely quadratic potential in a
Sturm-Liouville problem, regardless the sign of the parameter of the linear
potential, in sharp contrast with the Schroedinger case. The generalized Dirac
oscillator already analyzed in a previous work is obtained as a particular
case.

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The categories of this paper are: q-alg
10
The categories of this paper are: q-bio
25
The categories of this paper are: patt-sol
18
The categories of this paper are: econ
1
The categories of this paper are: cs
12
The categories of this paper are: nucl-th
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The categories of this paper are: stat
4
The categories of this paper are: cond-mat
8
The categories of this paper are: hep-ex
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The categories of this paper are: bayes-an
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The categories of this paper are: acc-phys
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The categories of this paper are: atom-ph
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The categories of this paper are: supr-con
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The categories of this paper are: adap-org
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The categories of this paper are: dg-ga
0
The categories of this paper are: hep-ph