Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: New Solvable Shape-Invariant Potentials for Position-Dependent Effective
  Mass   Four new exactly solvable, real and shape-invariant potentials associated
with a position-dependent effective mass are generated within the concept of
shape-invariant potentials using a specific ansatz for superpotential. The
accompanying energy spectra of the bound-state and the ground-state
wavefunction are obtained algebraically as a function of free parameters and
the results are compared with those of others works in the litterature.

27
The categories of this paper are: comp-gas
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The categories of this paper are: atom-ph
11
The categories of this paper are: hep-lat
10
The categories of this paper are: q-bio
15
The categories of this paper are: nucl-ex
37
The categories of this paper are: supr-con
25
The categories of this paper are: patt-sol
6
The categories of this paper are: astro-ph
26
The categories of this paper are: bayes-an
9
The categories of this paper are: nlin
0
The categories of this paper are: hep-ph
7
The categories of this paper are: hep-th
29
The categories of this paper are: funct-an
5
The categories of this paper are: gr-qc
13
The categories of this paper are: quant-ph
20
The categories of this paper are: acc-phys