Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Separation of variables in Hamilton-Jacobi equation for a charged test
  particle in the Stackel spaces of type (2.0)   Found all equivalence classes for electromagnetic potentials and space-time
metrics of Stackel spaces, provided that the equations of motion of the
classical charged test particles are integrated by the method of complete
separation of variables in the Hamilton- Jacobi equation. Separation is carried
out using the complete sets of reciprocal-commuting integrals of motion of type
(2.0), whereby in a privileged coordinate system the Hamilton- Jacobi equation
turns into a nonparabolic type equation.

8
The categories of this paper are: hep-ex
13
The categories of this paper are: quant-ph
27
The categories of this paper are: comp-gas
0
The categories of this paper are: hep-ph
24
The categories of this paper are: dg-ga
26
The categories of this paper are: bayes-an
21
The categories of this paper are: adap-org
33
The categories of this paper are: plasm-ph
29
The categories of this paper are: funct-an
9
The categories of this paper are: nlin
11
The categories of this paper are: hep-lat
36
The categories of this paper are: cmp-lg
15
The categories of this paper are: nucl-ex
14
The categories of this paper are: math-ph
20
The categories of this paper are: acc-phys
22
The categories of this paper are: chao-dyn