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arXiv 2102.12977math.NT
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一类亏格为2的曲线上的2-下降

Two-descent on some genus two curves

Tim Evink, Gert-Jan van der Heiden, Jaap Top

摘要:

对于满足方程y ^2 =x(x-2 p)(x-p)(x+p)(x+2 p)的超椭圆曲线C_p,讨论了它在Q上的Jacobian秩的界,在相应的Shafarevich-Tate群中发现了许多2-挠的情形,并给出了C_p的有理点的一些结果.

英文摘要:

For the hyperelliptic curve C_p with equation y^2=x(x-2p)(x-p)(x+p)(x+2p) with p a prime number, we discuss bounds for the rank of its Jacobian over Q, find many cases having 2-torsion in the associated Shafarevich-Tate group, and we present some results on rational points of C_p.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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