Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Red shift in spectra of galaxies as a consequence of gravitational
  radiation of the same level as electromagnetic   In elaboration of the results presented earlier the red shift is also
regarded in this investigation as a widening of electromagnetic radiation
spectra, determined by the existence of gravitational radiation of a banded
spectrum of the same level as electromagnetic.

25
The categories of this paper are: patt-sol
5
The categories of this paper are: gr-qc
8
The categories of this paper are: hep-ex
9
The categories of this paper are: nlin
32
The categories of this paper are: atom-ph
37
The categories of this paper are: supr-con
33
The categories of this paper are: plasm-ph
19
The categories of this paper are: eess
4
The categories of this paper are: cond-mat
21
The categories of this paper are: adap-org
11
The categories of this paper are: hep-lat
36
The categories of this paper are: cmp-lg
12
The categories of this paper are: nucl-th
6
The categories of this paper are: astro-ph
28
The categories of this paper are: alg-geom
15
The categories of this paper are: nucl-ex