2019/12/03 by Borges, Herivelto, Coutinho, Mariana
#11G20 #14G05 #14G10 #14H37 #Algebraic Geometry (math.AG) #FOS: Mathematics
paper · doi:10.48550/arxiv.1912.01659
For p an odd prime number, q0=pt, and q=p2t-1, let X_GS be the nonsingular model of Yq-Y=X^q0(Xq-X). In the present work, the number of \mathbbFqn-rational points and the full automorphism group of X_GS are determined. In addition, the L-polynomial of this curve is provided, and the number of \mathbbFqn-rational points on the Jacobian J_X_GS is used to construct étale covers of X_GS, some with many rational points.