Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Class VII surfaces with $b_2$ curves   We give an affirmative answer to a conjecture of Ma. Kato, namely that every
compact complex surface $S$ in Kodaira's class $VII_0$ with $b_2(S) > 0$ and
$b_2(S)$ rational curves, admits a global spherical shell.

11
The categories of this paper are: hep-lat
1
The categories of this paper are: cs
24
The categories of this paper are: dg-ga
0
The categories of this paper are: hep-ph
26
The categories of this paper are: bayes-an
31
The categories of this paper are: ao-sci
9
The categories of this paper are: nlin
7
The categories of this paper are: hep-th
27
The categories of this paper are: comp-gas
37
The categories of this paper are: supr-con
34
The categories of this paper are: chem-ph
10
The categories of this paper are: q-bio
15
The categories of this paper are: nucl-ex
28
The categories of this paper are: alg-geom
33
The categories of this paper are: plasm-ph
17
The categories of this paper are: q-fin