El grupo fundamental del espacio de Moduli en infinito
On the number of coincidences of morphisms between closed Riemann surfaces.
We give a bound for the number of coincidence of two morphisms between given compact Riemann surfaces (complete complex algebraic curves). Our results generalize well known facts about the number of fixed points of an automorphism.
A Fuchsian group proof of the hyperellipticity of Riemann surfaces of genus 2.
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