Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Solutions of nonlinear equation of the curvilinear electromagnetic wave
  theory for point and non-point electron   In previous paper we have shown that there is a special kind of nonlinear
electrodynamics - Curvilinear Wave Electrodynamics (CWED), whose equations are
mathematically equivalent to the equations of quantum electrodynamics. The
purpose of the present paper is to show that in framework of CWED the known
solutions of the nonlinear electromagnetic equations can be considered as the
approximate solutions of the nonlinear equation of CWED. Another purpose of
this paper is to show, that these solutions allow the description of
electron-like particle of CWED as point of non-point particles, depending on
mathematical approach.

29
The categories of this paper are: funct-an
24
The categories of this paper are: dg-ga
17
The categories of this paper are: q-fin
6
The categories of this paper are: astro-ph
35
The categories of this paper are: mtrl-th
10
The categories of this paper are: q-bio
7
The categories of this paper are: hep-th
22
The categories of this paper are: chao-dyn
4
The categories of this paper are: cond-mat
32
The categories of this paper are: atom-ph
28
The categories of this paper are: alg-geom
5
The categories of this paper are: gr-qc
37
The categories of this paper are: supr-con
13
The categories of this paper are: quant-ph
30
The categories of this paper are: q-alg
16
The categories of this paper are: stat