Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Remarks on random evolutions in Hamiltonian representation   telegrapher's equations and some random walks of Poisson type are shown to
fit into the framework of the Hamiltonian formalism after an appropriate
time-dependent rescaling of the basic variables has been made.

13
The categories of this paper are: quant-ph
33
The categories of this paper are: plasm-ph
29
The categories of this paper are: funct-an
17
The categories of this paper are: q-fin
32
The categories of this paper are: atom-ph
34
The categories of this paper are: chem-ph
16
The categories of this paper are: stat
24
The categories of this paper are: dg-ga
12
The categories of this paper are: nucl-th
7
The categories of this paper are: hep-th
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
0
The categories of this paper are: hep-ph
21
The categories of this paper are: adap-org
4
The categories of this paper are: cond-mat