Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Operator method for solution of the Schr\"{o}dinger equation with the
  rational potential   The eigenvalue problem for one-dimensional Schr\"{o}dinger equation with the
rational potential is numerically solved by the operator method. We show that
the operator method, applied for solving the Schr\"{o}dinger equation with the
nonpolynomial structure of the Hamiltonian, becomes more efficient if a
nonunitary transformation of the Hamiltonian is used. We demonstrate on
numerous examples that this method can handle both perturbative and
nonperturbative regimes with very high accuracy and moderate computational
cost.

1
The categories of this paper are: cs
24
The categories of this paper are: dg-ga
15
The categories of this paper are: nucl-ex
12
The categories of this paper are: nucl-th
29
The categories of this paper are: funct-an
16
The categories of this paper are: stat
22
The categories of this paper are: chao-dyn
34
The categories of this paper are: chem-ph
33
The categories of this paper are: plasm-ph
35
The categories of this paper are: mtrl-th
20
The categories of this paper are: acc-phys
28
The categories of this paper are: alg-geom
2
The categories of this paper are: math
6
The categories of this paper are: astro-ph
17
The categories of this paper are: q-fin
3
The categories of this paper are: physics