Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Retraction of "On a theory of half-integral spin particles with gauge
  invariant coupling to the electromagnetic potential: Towards higher spin QED"   The representation of the superalgebra so(2,1) that resulted in the
relativistic wave equation (2.1) and Eq. (2.4) is fully reducible. In fact, its
even part that lead to Eq. (3.1) is the direct sum of two spin 1/2
representations of the Lorentz group and does not represent spin 3/2 particle
as we claimed. Consequently, we retract our claim and withdraw the manuscript.

13
The categories of this paper are: quant-ph
17
The categories of this paper are: q-fin
26
The categories of this paper are: bayes-an
32
The categories of this paper are: atom-ph
30
The categories of this paper are: q-alg
2
The categories of this paper are: math
21
The categories of this paper are: adap-org
14
The categories of this paper are: math-ph
10
The categories of this paper are: q-bio
6
The categories of this paper are: astro-ph
15
The categories of this paper are: nucl-ex
3
The categories of this paper are: physics
9
The categories of this paper are: nlin
1
The categories of this paper are: cs
25
The categories of this paper are: patt-sol
18
The categories of this paper are: econ