Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Unirationality of cubic hypersurfaces   Segre proved that a smooth cubic surface over Q is unirational iff it has a
rational point. We prove that the result also holds for cubic hypersurfaces
over any field, including finite fields.

28
The categories of this paper are: alg-geom
13
The categories of this paper are: quant-ph
20
The categories of this paper are: acc-phys
19
The categories of this paper are: eess
23
The categories of this paper are: solv-int
9
The categories of this paper are: nlin
15
The categories of this paper are: nucl-ex
34
The categories of this paper are: chem-ph
14
The categories of this paper are: math-ph
8
The categories of this paper are: hep-ex
37
The categories of this paper are: supr-con
25
The categories of this paper are: patt-sol
0
The categories of this paper are: hep-ph
36
The categories of this paper are: cmp-lg
26
The categories of this paper are: bayes-an
24
The categories of this paper are: dg-ga