Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the perturbation of domain wall coupled to gravitational waves   The equation of motion for domain wall coupled to gravitational field is
derived. The domain wall is treated as a source of gravitational field around
the wall. The perturbed equation is also obtained with taking account of the
gravitational back reaction on the motion of the domain wall.

28
The categories of this paper are: alg-geom
20
The categories of this paper are: acc-phys
24
The categories of this paper are: dg-ga
7
The categories of this paper are: hep-th
37
The categories of this paper are: supr-con
1
The categories of this paper are: cs
21
The categories of this paper are: adap-org
16
The categories of this paper are: stat
11
The categories of this paper are: hep-lat
32
The categories of this paper are: atom-ph
33
The categories of this paper are: plasm-ph
25
The categories of this paper are: patt-sol
29
The categories of this paper are: funct-an
17
The categories of this paper are: q-fin
6
The categories of this paper are: astro-ph
27
The categories of this paper are: comp-gas