On maximal curves and unramified coverings
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.
 Publication:

arXiv Mathematics eprints
 Pub Date:
 May 2001
 arXiv:
 arXiv:math/0105126
 Bibcode:
 2001math......5126F
 Keywords:

 Algebraic Geometry;
 11G20;
 14G05;
 14G15
 EPrint:
 8 pages, LaTex 2e, available at http://www.ime.unicamp.br/~ftorres