Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the Problem of Ambiguity of Electromagnetic Potential   In the self-sufficient potential formalism, treating all electromagnetic
phenomena as natural or forced oscillations of some distributed electromagnetic
oscillating system (Minkowski space-time), the electromagnetic potential must
be considered as some relative measure describing deviation of the system from
its "undisturbed" state (when both natural and forced oscillations are absent).
Therefore, there is no ambiguity in the gauge of one: all components of the
potential four-vector are asymptotically verging towards zero while the
distance from all free charges and currents enlarges. Such interpretation turns
the electromagnetic potential into a physically real value.

31
The categories of this paper are: ao-sci
19
The categories of this paper are: eess
12
The categories of this paper are: nucl-th
1
The categories of this paper are: cs
30
The categories of this paper are: q-alg
22
The categories of this paper are: chao-dyn
13
The categories of this paper are: quant-ph
21
The categories of this paper are: adap-org
15
The categories of this paper are: nucl-ex
26
The categories of this paper are: bayes-an
32
The categories of this paper are: atom-ph
11
The categories of this paper are: hep-lat
6
The categories of this paper are: astro-ph
24
The categories of this paper are: dg-ga
33
The categories of this paper are: plasm-ph
10
The categories of this paper are: q-bio