Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Nonrelativistic Green's function for systems with position-dependent
  mass   Given a spatially dependent mass we obtain the two-point Green's function for
exactly solvable nonrelativistic problems. This is accomplished by mapping the
wave equation for these systems into well-known exactly solvable Schrodinger
equations with constant mass using point canonical transformation. The
one-dimensional oscillator class is considered and examples are given for
several mass distributions.

12
The categories of this paper are: nucl-th
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The categories of this paper are: quant-ph
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The categories of this paper are: q-bio
15
The categories of this paper are: nucl-ex
18
The categories of this paper are: econ
3
The categories of this paper are: physics
37
The categories of this paper are: supr-con
28
The categories of this paper are: alg-geom
36
The categories of this paper are: cmp-lg
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The categories of this paper are: eess
1
The categories of this paper are: cs
26
The categories of this paper are: bayes-an
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The categories of this paper are: hep-ex
25
The categories of this paper are: patt-sol
33
The categories of this paper are: plasm-ph
5
The categories of this paper are: gr-qc