On maximal curves and unramified coverings
arXiv:math/0105126
Abstract
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.
8 pages, LaTex 2e, available at http://www.ime.unicamp.br/~ftorres