Ramified coverings and Gaussian maps of smooth algebraic curves

Ballico, E.; Keem, C.

Ballico, E. ; Keem, C.

Kodai Math. J., Tome 28 (2005) no. 1, p. 92-98 / Harvested from Project Euclid

Résumé

We show the existence of special curves which are ramified coverings of irrational curves with surjective Wahl maps. We also show the failure of a key property of Gaussian maps in positive characteristic, i.e. the Gherardelli's lower bound for the rank of a Gaussian map.

Publié le : 2005-03-14
Classification:

@article{1111588038,
     author = {Ballico, E. and Keem, C.},
     title = {Ramified coverings and Gaussian maps of smooth algebraic curves},
     journal = {Kodai Math. J.},
     volume = {28},
     number = {1},
     year = {2005},
     pages = { 92-98},
     language = {en},
     url = {http://dml.mathdoc.fr/item/1111588038}
}

Ballico, E.; Keem, C. Ramified coverings and Gaussian maps of smooth algebraic curves. Kodai Math. J., Tome 28 (2005) no. 1, pp.  92-98. http://gdmltest.u-ga.fr/item/1111588038/