Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Moduli spaces $M_{g,n}(W)$ for surfaces   We construct and prove the projectiveness of the moduli spaces which are
natural generalizations to the case of surfaces of the following:
  1) $M_{g,n}$, the moduli space of $n$-marked stable curves,
  2) $M_{g,n}(W)$, the moduli space of $n$-marked stable maps to a variety $W$.

14
The categories of this paper are: math-ph
13
The categories of this paper are: quant-ph
5
The categories of this paper are: gr-qc
21
The categories of this paper are: adap-org
24
The categories of this paper are: dg-ga
16
The categories of this paper are: stat
19
The categories of this paper are: eess
12
The categories of this paper are: nucl-th
30
The categories of this paper are: q-alg
10
The categories of this paper are: q-bio
36
The categories of this paper are: cmp-lg
31
The categories of this paper are: ao-sci
23
The categories of this paper are: solv-int
32
The categories of this paper are: atom-ph
0
The categories of this paper are: hep-ph
4
The categories of this paper are: cond-mat