On the Prym variety of genus 3 covers of genus 1 curves
On the Prym variety of genus 3 covers of genus 1 curves
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DOI:
10.46298/epiga.2018.volume2.3663
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发表时间:
2016-12
期刊:
影响因子:
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通讯作者:
C. Ritzenthaler;M. Romagny
中科院分区:
文献类型:
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作者:
C. Ritzenthaler;M. Romagny
Given a generic degree-2 cover of a genus 1 curve D by a non hyperelliptic genus 3 curve C over a field k of characteristic different from 2, we produce an explicit genus 2 curve X such that Jac(C) is isogenous to the product of Jac(D) and Jac(X). This construction can be seen as a degenerate case of a result by Nils Bruin.