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arXiv · 1901.09846

On isogenies among certain abelian surfaces

Adrian Clingher·Andreas Malmendier·Tony Shaska
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Abstract

We construct a three-parameter family of non-hyperelliptic and bielliptic plane genus-three curves whose associated Prym variety is two-isogenous to the Jacobian variety of a general hyperelliptic genus-two curve. Our construction is based on the existence of special elliptic fibrations with the section on the associated Kummer surfaces that provide a simple geometric interpretation for the rational double cover induced by the two-isogeny between the abelian surfaces.

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Adrian Clingher, Andreas Malmendier, Tony Shaska. 2019-01-28. On isogenies among certain abelian surfaces. https://doi.org/10.1307/mmj%2F20195790

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