Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Application of Generalized Quantum Hydrodynamics In the Theory of
  Quantum Soliton's Evolution, Atom Structure and Lightning Ball   Quantum solitons are discovered with the help of generalized quantum
hydrodynamics (GQH). The solitons have the character of the stable quantum
objects in the self consistent electric field. These effects can be considered
as explanation of the existence of lightning balls. The delivered theory
demonstrates the great possibilities of the generalized quantum hydrodynamics
in investigation of the quantum solitons. The paper can be considered also as
comments and prolongation of the materials published in the known author`s
monograph (Boris V. Alexeev, Generalized Boltzmann Physical Kinetics. Elsevier.
2004). The theory leads to solitons as typical formations in the generalized
quantum hydrodynamics.
  Key words: Foundations of the theory of transport processes; The theory of
solitons; Generalized hydrodynamic equations; Foundations of quantum mechanics;
The theory of lightning balls.
  PACS: 67.55.Fa, 67.55.Hc

2
The categories of this paper are: math
19
The categories of this paper are: eess
37
The categories of this paper are: supr-con
30
The categories of this paper are: q-alg
6
The categories of this paper are: astro-ph
27
The categories of this paper are: comp-gas
4
The categories of this paper are: cond-mat
31
The categories of this paper are: ao-sci
9
The categories of this paper are: nlin
24
The categories of this paper are: dg-ga
35
The categories of this paper are: mtrl-th
28
The categories of this paper are: alg-geom
22
The categories of this paper are: chao-dyn
21
The categories of this paper are: adap-org
1
The categories of this paper are: cs
13
The categories of this paper are: quant-ph