A Geometric Interpretation of Reduction in the Jacobians of C ab Curves
Blache, Régis
Sarlabous, Jorge Estrada
Petkova, Maria
In this paper, we show that the reduction of divisors in the Jacobian of a curve $C$ can be performed by considering the intersections of a suitable projective model of $C$ with quadrics in projective space. We apply this idea to certain projective model of elliptic and hyperelliptic curves on one hand, and to the canonical model of $C_{ab}$ curves on the other hand, and we generalize (and recover) some well known algorithms.
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Is Part Of Series: Preprints aus dem Institut für Mathematik - 16, Mathematik-Preprints, ISSN:0863-0976
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