Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On Abelianization of First Class Constraints   The systematic method for the conversion of first class constraints to the
equivalent set of Abelian one based on the Dirac equivalence transformation is
developed. The representation for the corresponding matrix performing this
transformation is proposed. This representation allows one to lead the problem
of abelianization to the solution of a certain system of first order {\it
linear } differential equations for matrix elements .

9
The categories of this paper are: nlin
24
The categories of this paper are: dg-ga
29
The categories of this paper are: funct-an
36
The categories of this paper are: cmp-lg
12
The categories of this paper are: nucl-th
30
The categories of this paper are: q-alg
11
The categories of this paper are: hep-lat
33
The categories of this paper are: plasm-ph
25
The categories of this paper are: patt-sol
15
The categories of this paper are: nucl-ex
32
The categories of this paper are: atom-ph
10
The categories of this paper are: q-bio
26
The categories of this paper are: bayes-an
35
The categories of this paper are: mtrl-th
5
The categories of this paper are: gr-qc
16
The categories of this paper are: stat