Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Time as a stochastic process   In the paper we consider an interesting possibility of a time as a stochastic
process in quantum mechanics.In order to do it we reconsider time as a
mechanical quantity in classical mechanics and afterwards we quantize it. We
consider continuous and discrete time.

23
The categories of this paper are: solv-int
18
The categories of this paper are: econ
34
The categories of this paper are: chem-ph
5
The categories of this paper are: gr-qc
24
The categories of this paper are: dg-ga
26
The categories of this paper are: bayes-an
33
The categories of this paper are: plasm-ph
31
The categories of this paper are: ao-sci
7
The categories of this paper are: hep-th
4
The categories of this paper are: cond-mat
36
The categories of this paper are: cmp-lg
32
The categories of this paper are: atom-ph
1
The categories of this paper are: cs
29
The categories of this paper are: funct-an
37
The categories of this paper are: supr-con
35
The categories of this paper are: mtrl-th