Curve name | $X_{183a}$ | |||||||||
Index | $96$ | |||||||||
Level | $8$ | |||||||||
Genus | $0$ | |||||||||
Does the subgroup contain $-I$? | No | |||||||||
Generating matrices | $ \left[ \begin{matrix} 3 & 4 \\ 0 & 7 \end{matrix}\right], \left[ \begin{matrix} 5 & 4 \\ 2 & 3 \end{matrix}\right], \left[ \begin{matrix} 3 & 4 \\ 4 & 7 \end{matrix}\right], \left[ \begin{matrix} 1 & 4 \\ 6 & 3 \end{matrix}\right]$ | |||||||||
Images in lower levels |
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Meaning/Special name | ||||||||||
Chosen covering | $X_{183}$ | |||||||||
Curves that $X_{183a}$ minimally covers | ||||||||||
Curves that minimally cover $X_{183a}$ | ||||||||||
Curves that minimally cover $X_{183a}$ and have infinitely many rational points. | ||||||||||
Model | $\mathbb{P}^{1}$, a universal elliptic curve over an appropriate base is given by \[y^2 = x^3 + A(t)x + B(t), \text{ where}\] \[A(t) = -108t^{24} - 216t^{20} - 1620t^{16} - 3024t^{12} - 1620t^{8} - 216t^{4} - 108\] \[B(t) = 432t^{36} + 1296t^{32} - 12960t^{28} - 42336t^{24} - 57024t^{20} - 57024t^{16} - 42336t^{12} - 12960t^{8} + 1296t^{4} + 432\] | |||||||||
Info about rational points | ||||||||||
Comments on finding rational points | None | |||||||||
Elliptic curve whose $2$-adic image is the subgroup | $y^2 = x^3 - x^2 - 26634625x + 42533130625$, with conductor $277440$ | |||||||||
Generic density of odd order reductions | $5/42$ |