Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Green function for the Poisson equation in a general case of
  astrophysical interest   In present paper we suggest exact solution of the Poisson problem which
appears in frequently addressed applications regarding calculation of the
gravitational potential of spiral galaxies. We suggest an analytical solution
for the problem in cylindrical coordinates by using the finite integral
transform technique. The final solution is presented as expansion on the
eigenfunctions of the corresponding Sturm-Liouville problem. Green function of
the problem is constructed.

19
The categories of this paper are: eess
16
The categories of this paper are: stat
15
The categories of this paper are: nucl-ex
1
The categories of this paper are: cs
34
The categories of this paper are: chem-ph
23
The categories of this paper are: solv-int
24
The categories of this paper are: dg-ga
5
The categories of this paper are: gr-qc
25
The categories of this paper are: patt-sol
30
The categories of this paper are: q-alg
7
The categories of this paper are: hep-th
2
The categories of this paper are: math
22
The categories of this paper are: chao-dyn
28
The categories of this paper are: alg-geom
32
The categories of this paper are: atom-ph
0
The categories of this paper are: hep-ph