Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A GIT Construction of Moduli Spaces of Stable Maps in Positive
  Characteristic   In a previous paper, the author and David Swinarski constructed the moduli
spaces of stable maps, \bar M_g,n(P^r,d), via geometric invariant theory (GIT).
That paper required the base field to be the complex numbers, a restriction
which this paper removes: here the coarse moduli spaces of stable maps are
constructed via GIT over a more general base.

28
The categories of this paper are: alg-geom
3
The categories of this paper are: physics
23
The categories of this paper are: solv-int
12
The categories of this paper are: nucl-th
21
The categories of this paper are: adap-org
15
The categories of this paper are: nucl-ex
26
The categories of this paper are: bayes-an
10
The categories of this paper are: q-bio
22
The categories of this paper are: chao-dyn
24
The categories of this paper are: dg-ga
8
The categories of this paper are: hep-ex
7
The categories of this paper are: hep-th
36
The categories of this paper are: cmp-lg
14
The categories of this paper are: math-ph
13
The categories of this paper are: quant-ph
35
The categories of this paper are: mtrl-th