© The London Mathematical Society
Schottky Uniformizations of Genus 3 and 4 Reflecting S4
Departamento de Matemática, Universidad Tecnica Federico Santa Maria Valparaíso, Chile ruben.hidalgo{at}mat.utfsm.cl
Received 26 November 2002. Revision received 15 January 2004.
Schottky uniformizations are provided of every closed Riemann surface S of genus g
{3,4} admitting the symmetric group S4 as group of conformal automorphisms. These Schottky uniformizations reflect the group S4 and permit concrete representations of S4 to be obtained in the respective symplectic group Spg(Z). Their corresponding fixed points, in the Siegel space, give principally polarized Abelian varieties of dimension g. For g = 3 and for some cases of g = 4 they turn out to be holomorphically equivalent to the product of elliptic curves.