Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On Stein Neighborhood Basis of Real Surfaces   In this paper, we show that a compact real surface embedded in a complex
surface has a regular Stein neighborhood basis, provided that there are only
finitely many complex points on the surface, and that they are all flat and
hyperbolic. An application to unions of totally real planes in $\CC^2$ is then
given.

34
The categories of this paper are: chem-ph
13
The categories of this paper are: quant-ph
10
The categories of this paper are: q-bio
5
The categories of this paper are: gr-qc
29
The categories of this paper are: funct-an
28
The categories of this paper are: alg-geom
15
The categories of this paper are: nucl-ex
18
The categories of this paper are: econ
27
The categories of this paper are: comp-gas
4
The categories of this paper are: cond-mat
21
The categories of this paper are: adap-org
30
The categories of this paper are: q-alg
14
The categories of this paper are: math-ph
37
The categories of this paper are: supr-con
6
The categories of this paper are: astro-ph
19
The categories of this paper are: eess