Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Rational surfaces and symplectic 4-manifolds with one basic class   We present constructions of simply connected symplectic 4-manifolds which
have (up to sign) one basic class and which fill up the geographical region
between the half-Noether and Noether lines.

9
The categories of this paper are: nlin
23
The categories of this paper are: solv-int
7
The categories of this paper are: hep-th
15
The categories of this paper are: nucl-ex
29
The categories of this paper are: funct-an
37
The categories of this paper are: supr-con
36
The categories of this paper are: cmp-lg
6
The categories of this paper are: astro-ph
12
The categories of this paper are: nucl-th
3
The categories of this paper are: physics
13
The categories of this paper are: quant-ph
28
The categories of this paper are: alg-geom
11
The categories of this paper are: hep-lat
19
The categories of this paper are: eess
33
The categories of this paper are: plasm-ph
0
The categories of this paper are: hep-ph