Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Covariance of the selfdual vector model   The Poisson algebra between the fields involved in the vectorial selfdual
action is obtained by means of the reduced action. The conserved charges
associated with the invariance under the inhomogeneous Lorentz group are
obtained and its action on the fields. The covariance of the theory is proved
using the Schwinger-Dirac algebra. The spin of the excitations is discussed.

5
The categories of this paper are: gr-qc
25
The categories of this paper are: patt-sol
22
The categories of this paper are: chao-dyn
17
The categories of this paper are: q-fin
10
The categories of this paper are: q-bio
12
The categories of this paper are: nucl-th
1
The categories of this paper are: cs
4
The categories of this paper are: cond-mat
18
The categories of this paper are: econ
33
The categories of this paper are: plasm-ph
28
The categories of this paper are: alg-geom
26
The categories of this paper are: bayes-an
9
The categories of this paper are: nlin
32
The categories of this paper are: atom-ph
8
The categories of this paper are: hep-ex
13
The categories of this paper are: quant-ph