Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The It\\^o transform for a general class of pseudo-differential
  operators   We give an Ito type formula for a semi group whose generarator is a positive
pseudo-differential operator which does not in general satisfies maximumu
principle.

37
The categories of this paper are: supr-con
28
The categories of this paper are: alg-geom
10
The categories of this paper are: q-bio
22
The categories of this paper are: chao-dyn
19
The categories of this paper are: eess
16
The categories of this paper are: stat
27
The categories of this paper are: comp-gas
33
The categories of this paper are: plasm-ph
4
The categories of this paper are: cond-mat
11
The categories of this paper are: hep-lat
31
The categories of this paper are: ao-sci
36
The categories of this paper are: cmp-lg
8
The categories of this paper are: hep-ex
18
The categories of this paper are: econ
3
The categories of this paper are: physics
13
The categories of this paper are: quant-ph