Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Weighted composition operators on the Fock space: iteration and
  semigroups   This paper considers discrete and continuous semigroups of (weighted)
composition operators on the Fock space. For discrete semigroups consisting of
powers of a single operator, the asymptotic behaviour of the semigroups is
analysed. For continuous semigroups and groups, a full classification of
possible semigroups is given, and the generator is calculated.

22
The categories of this paper are: chao-dyn
3
The categories of this paper are: physics
14
The categories of this paper are: math-ph
29
The categories of this paper are: funct-an
37
The categories of this paper are: supr-con
30
The categories of this paper are: q-alg
24
The categories of this paper are: dg-ga
31
The categories of this paper are: ao-sci
8
The categories of this paper are: hep-ex
32
The categories of this paper are: atom-ph
5
The categories of this paper are: gr-qc
34
The categories of this paper are: chem-ph
13
The categories of this paper are: quant-ph
1
The categories of this paper are: cs
9
The categories of this paper are: nlin
23
The categories of this paper are: solv-int