Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dirac Analysis and Integrability of Geodesic Equations for Cylindrically
  Symmetric Spacetimes   Dirac's constraint analysis and the symplectic structure of geodesic
equations are obtained for the general cylindrically symmetric stationary
spacetime. For this metric, using the obtained first order Lagrangian, the
geodesic equations of motion are integrated, and found some solutions for
Lewis, Levi-Civita, and Van Stockum spacetimes.

22
The categories of this paper are: chao-dyn
19
The categories of this paper are: eess
11
The categories of this paper are: hep-lat
0
The categories of this paper are: hep-ph
17
The categories of this paper are: q-fin
12
The categories of this paper are: nucl-th
24
The categories of this paper are: dg-ga
21
The categories of this paper are: adap-org
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
1
The categories of this paper are: cs
30
The categories of this paper are: q-alg
14
The categories of this paper are: math-ph
13
The categories of this paper are: quant-ph
32
The categories of this paper are: atom-ph