Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Weinberg Formalism and a New Look at the Electromagnetic Theory   In the first part of this paper we review several formalisms which give
alternative ways for describing the light. They are: the formalism `baroque'
and the Majorana-Oppenheimer form of electrodynamics, the Sachs' theory of
Elementary Matter, the Dirac-Fock-Podol'sky model, its development by
Staruszkiewicz, the Evans-Vigier ${\bf B}^{(3)}$ field, the theory with an
invariant evolution parameter by Horwitz, the analysis of the
action-at-a-distance concept, presented recently by Chubykalo and
Smirnov-Rueda, and the analysis of the claimed `longitudinality' of the
antisymmetric tensor field after quantization. The second part is devoted to
the discussion of the Weinberg formalism and its recent development by
Ahluwalia and myself. Connections between these models and possible
significance of longitudinal modes are also discussed.

2
The categories of this paper are: math
0
The categories of this paper are: hep-ph
11
The categories of this paper are: hep-lat
36
The categories of this paper are: cmp-lg
37
The categories of this paper are: supr-con
12
The categories of this paper are: nucl-th
24
The categories of this paper are: dg-ga
15
The categories of this paper are: nucl-ex
34
The categories of this paper are: chem-ph
6
The categories of this paper are: astro-ph
20
The categories of this paper are: acc-phys
14
The categories of this paper are: math-ph
35
The categories of this paper are: mtrl-th
10
The categories of this paper are: q-bio
25
The categories of this paper are: patt-sol
4
The categories of this paper are: cond-mat