3 papers
math.CO2000
Transitive and Co-Transitive Caps
A. Cossidente, O. H. King
A cap in PG(r,q) is a set of points, no three of which are collinear. A cap is said to be transitive if its automorphism group in PGammaL(r+1,q) acts transtively on the cap, and co…
math.AG1998
On curves covered by the Hermitian curve, II
A. Cossidente, G. Korchmaros, F. Torres
We classify, up to isomorphism, maximal curves covered by the Hermitian curve \mathcal H by a prime degree Galois covering. We also compute the genus of maximal curves obtained by…
math.AG1998
On plane maximal curves
A. Cossidente, J. W. P. Hirschfeld, G. Korchmaros +1
The genus of a maximal curve over a finite field with r^2 elements is either g_0=r(r-1)/2 or less than or equal to g_1=(r-1)^2/4. Maximal curves with genus g_0 or g_1 have been cha…