Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Relativistic corrections to the energy spectra of completely confined
  particles   An analytical expression for the relativistic corrections to the energy
spectra of particles completely confined in an one-dimensional limited length
in real space is given, based upon the wave property of particles, the
relativistic energy-momentum relation and two mathematical equations.

5
The categories of this paper are: gr-qc
23
The categories of this paper are: solv-int
22
The categories of this paper are: chao-dyn
24
The categories of this paper are: dg-ga
27
The categories of this paper are: comp-gas
0
The categories of this paper are: hep-ph
17
The categories of this paper are: q-fin
6
The categories of this paper are: astro-ph
32
The categories of this paper are: atom-ph
11
The categories of this paper are: hep-lat
12
The categories of this paper are: nucl-th
26
The categories of this paper are: bayes-an
35
The categories of this paper are: mtrl-th
34
The categories of this paper are: chem-ph
33
The categories of this paper are: plasm-ph
14
The categories of this paper are: math-ph