Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Polarization modes for strong-field gravitational waves   Strong-field gravitational plane waves are often represented in either the
Rosen or Brinkmann forms. These forms are related by a coordinate
transformation, so they should describe essentially the same physics, but the
two forms treat polarization states quite differently. Both deal well with
linear polarizations, but there is a qualitative difference in the way they
deal with circular, elliptic, and more general polarization states. In this
article we will describe a general algorithm for constructing arbitrary
polarization states in the Rosen form.

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The categories of this paper are: hep-ph
19
The categories of this paper are: eess
22
The categories of this paper are: chao-dyn
28
The categories of this paper are: alg-geom
31
The categories of this paper are: ao-sci
9
The categories of this paper are: nlin
12
The categories of this paper are: nucl-th
33
The categories of this paper are: plasm-ph
4
The categories of this paper are: cond-mat
15
The categories of this paper are: nucl-ex
27
The categories of this paper are: comp-gas
6
The categories of this paper are: astro-ph
1
The categories of this paper are: cs
37
The categories of this paper are: supr-con
30
The categories of this paper are: q-alg
36
The categories of this paper are: cmp-lg