Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Soliton Nature of Equilibrium State of Two Charged Masses in General
  Relativity   New derivation of static equilibrium state for two charged masses in General
Relativity is given in the framework of the Inverse Scattering Method as an
alternative to our previous derivation of this solution by the Integral
Equation Method. This shows that such solution is of solitonic character and
represents the particular case of more general (12-parametric) stationary
axisymmetric electrovacuum two-soliton solution for two rotating charged
objects obtained by one of the authors in 1986. This result gives an additional
support to our comprehension that the appropriate analytical continuations of
solitonic solutions in the space of their parameters are always possible and
that applicability of the Inverse Scattering Method in presence of
electromagnetic field is not restricted only to the cases with naked
singularities.

35
The categories of this paper are: mtrl-th
37
The categories of this paper are: supr-con
18
The categories of this paper are: econ
20
The categories of this paper are: acc-phys
34
The categories of this paper are: chem-ph
1
The categories of this paper are: cs
8
The categories of this paper are: hep-ex
2
The categories of this paper are: math
32
The categories of this paper are: atom-ph
27
The categories of this paper are: comp-gas
12
The categories of this paper are: nucl-th
19
The categories of this paper are: eess
31
The categories of this paper are: ao-sci
10
The categories of this paper are: q-bio
6
The categories of this paper are: astro-ph
28
The categories of this paper are: alg-geom