Curve name | $X_{185i}$ | |||||||||
Index | $96$ | |||||||||
Level | $8$ | |||||||||
Genus | $0$ | |||||||||
Does the subgroup contain $-I$? | No | |||||||||
Generating matrices | $ \left[ \begin{matrix} 1 & 0 \\ 0 & 5 \end{matrix}\right], \left[ \begin{matrix} 3 & 6 \\ 0 & 7 \end{matrix}\right], \left[ \begin{matrix} 1 & 0 \\ 0 & 7 \end{matrix}\right]$ | |||||||||
Images in lower levels |
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Meaning/Special name | ||||||||||
Chosen covering | $X_{185}$ | |||||||||
Curves that $X_{185i}$ minimally covers | ||||||||||
Curves that minimally cover $X_{185i}$ | ||||||||||
Curves that minimally cover $X_{185i}$ and have infinitely many rational points. | ||||||||||
Model | $\mathbb{P}^{1}$, a universal elliptic curve over an appropriate base is given by \[y^2 = x^3 + A(t)x + B(t), \text{ where}\] \[A(t) = -110592t^{24} - 1714176t^{20} - 1762560t^{16} - 670464t^{12} - 110160t^{8} - 6696t^{4} - 27\] \[B(t) = 14155776t^{36} - 435290112t^{32} - 1252786176t^{28} - 1164312576t^{24} - 529846272t^{20} - 132461568t^{16} - 18192384t^{12} - 1223424t^{8} - 26568t^{4} + 54\] | |||||||||
Info about rational points | ||||||||||
Comments on finding rational points | None | |||||||||
Elliptic curve whose $2$-adic image is the subgroup | $y^2 + xy + y = x^3 - 3376x - 75727$, with conductor $75$ | |||||||||
Generic density of odd order reductions | $11/112$ |