Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On maximal curves and unramified coverings   We discuss sufficient conditions for a given curve to be covered by a maximal
curve with the covering being unramified; it turns out that the given curve
itself will be also maximal. We relate our main result to the question of
whether or not a maximal curve is covered by the Hermitian curve. We also
provide examples illustrating the results.

25
The categories of this paper are: patt-sol
35
The categories of this paper are: mtrl-th
3
The categories of this paper are: physics
29
The categories of this paper are: funct-an
18
The categories of this paper are: econ
7
The categories of this paper are: hep-th
6
The categories of this paper are: astro-ph
15
The categories of this paper are: nucl-ex
12
The categories of this paper are: nucl-th
36
The categories of this paper are: cmp-lg
33
The categories of this paper are: plasm-ph
20
The categories of this paper are: acc-phys
24
The categories of this paper are: dg-ga
26
The categories of this paper are: bayes-an
37
The categories of this paper are: supr-con
28
The categories of this paper are: alg-geom