Curve name | $X_{96l}$ | |||||||||
Index | $48$ | |||||||||
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} 1 & 2 \\ 0 & 1 \end{matrix}\right], \left[ \begin{matrix} 5 & 0 \\ 0 & 7 \end{matrix}\right], \left[ \begin{matrix} 3 & 0 \\ 0 & 7 \end{matrix}\right]$ | |||||||||
Images in lower levels |
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Meaning/Special name | ||||||||||
Chosen covering | $X_{96}$ | |||||||||
Curves that $X_{96l}$ minimally covers | ||||||||||
Curves that minimally cover $X_{96l}$ | ||||||||||
Curves that minimally cover $X_{96l}$ and have infinitely many rational points. | ||||||||||
Model | $\mathbb{P}^{1}$, a universal elliptic curve over an appropriate base is given by \[y^2 = x^3 + A(t)x + B(t), \text{ where}\] \[A(t) = -108t^{12} - 216t^{10} + 216t^{6} - 216t^{2} - 108\] \[B(t) = 432t^{18} + 1296t^{16} + 648t^{14} - 1512t^{12} - 2592t^{10} - 2592t^{8} - 1512t^{6} + 648t^{4} + 1296t^{2} + 432\] | |||||||||
Info about rational points | ||||||||||
Comments on finding rational points | None | |||||||||
Elliptic curve whose $2$-adic image is the subgroup | $y^2 = x^3 - x^2 - 21970056x + 39643441200$, with conductor $40560$ | |||||||||
Generic density of odd order reductions | $41/336$ |