Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Hamilton-Jacobi analysis of the four dimensional BF model with
  cosmological term   In this work we perform the Hamilton-Jacobi constraint analysis of the four
dimensional Background Field (BF) model with cosmological term. We obtain the
complete set of involutive Hamiltonians that guarantee the integrability of the
system and identify the reduced phase space. From the fundamental differential
we recover the equations of motion and obtain the generators of the gauge and
shift transformations.

20
The categories of this paper are: acc-phys
31
The categories of this paper are: ao-sci
34
The categories of this paper are: chem-ph
23
The categories of this paper are: solv-int
32
The categories of this paper are: atom-ph
9
The categories of this paper are: nlin
37
The categories of this paper are: supr-con
4
The categories of this paper are: cond-mat
36
The categories of this paper are: cmp-lg
3
The categories of this paper are: physics
26
The categories of this paper are: bayes-an
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The categories of this paper are: q-fin
16
The categories of this paper are: stat
18
The categories of this paper are: econ
13
The categories of this paper are: quant-ph
29
The categories of this paper are: funct-an