Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Concept of a thermonuclear reactor based on gravity retention of
  high-temperature plasma   In the present paper the realization of the obtained results in relation to
the dense high- temperature plasma of multivalent ions including experimental
data interpretation is discussed.

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
0
The categories of this paper are: hep-ph
28
The categories of this paper are: alg-geom
25
The categories of this paper are: patt-sol
8
The categories of this paper are: hep-ex
29
The categories of this paper are: funct-an
35
The categories of this paper are: mtrl-th
26
The categories of this paper are: bayes-an
6
The categories of this paper are: astro-ph
34
The categories of this paper are: chem-ph
18
The categories of this paper are: econ
20
The categories of this paper are: acc-phys
24
The categories of this paper are: dg-ga
12
The categories of this paper are: nucl-th