Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: SUSY QM, symmetries and spectrum generating algebras for two-dimensional
  systems   We show in a systematic and clear way how factorization methods can be used
to construct the generators for hidden and dynamical symmetries. This is shown
by studying the 2D problems of hydrogen atom, the isotropic harmonic oscillator
and the radial potential $A\rho^{2\zeta-2}-B\rho^{\zeta-2}$. We show that in
these cases the non-compact (compact) algebra corresponds to so(2,1) (su(2)).

20
The categories of this paper are: acc-phys
11
The categories of this paper are: hep-lat
28
The categories of this paper are: alg-geom
36
The categories of this paper are: cmp-lg
30
The categories of this paper are: q-alg
4
The categories of this paper are: cond-mat
34
The categories of this paper are: chem-ph
9
The categories of this paper are: nlin
10
The categories of this paper are: q-bio
26
The categories of this paper are: bayes-an
1
The categories of this paper are: cs
5
The categories of this paper are: gr-qc
35
The categories of this paper are: mtrl-th
24
The categories of this paper are: dg-ga
27
The categories of this paper are: comp-gas
14
The categories of this paper are: math-ph