Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: An explicit Koppelman formula for $dd^c$ and Green currents on $\mathcal
  P^n$   We compute a quite explicit Koppelman formula for $dd^c$ on projective space,
and obtain Green currents for positive closed currents.

35
The categories of this paper are: mtrl-th
9
The categories of this paper are: nlin
15
The categories of this paper are: nucl-ex
22
The categories of this paper are: chao-dyn
11
The categories of this paper are: hep-lat
6
The categories of this paper are: astro-ph
31
The categories of this paper are: ao-sci
0
The categories of this paper are: hep-ph
30
The categories of this paper are: q-alg
33
The categories of this paper are: plasm-ph
24
The categories of this paper are: dg-ga
21
The categories of this paper are: adap-org
7
The categories of this paper are: hep-th
26
The categories of this paper are: bayes-an
37
The categories of this paper are: supr-con
14
The categories of this paper are: math-ph