Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Relativistic Particle in the Liouville Field   A model of a relativistic particle moving in the Liouville field is
investigated. Symmetry group of the system is $SL(2,R)/Z_2$. The corresponding
dynamical integrals describe full set of classical trajectories. Dynamical
integrals are used for the gauge-invariant Hamiltonian reduction. The new
scheme is proposed for quantization of the reduced system. Obtained quantum
system reproduces classical symmetry. Physical aspects of the model are
discussed.

13
The categories of this paper are: quant-ph
3
The categories of this paper are: physics
2
The categories of this paper are: math
29
The categories of this paper are: funct-an
26
The categories of this paper are: bayes-an
20
The categories of this paper are: acc-phys
10
The categories of this paper are: q-bio
19
The categories of this paper are: eess
30
The categories of this paper are: q-alg
16
The categories of this paper are: stat
34
The categories of this paper are: chem-ph
15
The categories of this paper are: nucl-ex
23
The categories of this paper are: solv-int
9
The categories of this paper are: nlin
33
The categories of this paper are: plasm-ph
11
The categories of this paper are: hep-lat