Curve name | $X_{100g}$ | |||||||||
Index | $48$ | |||||||||
Level | $8$ | |||||||||
Genus | $0$ | |||||||||
Does the subgroup contain $-I$? | No | |||||||||
Generating matrices | $ \left[ \begin{matrix} 3 & 0 \\ 4 & 5 \end{matrix}\right], \left[ \begin{matrix} 5 & 0 \\ 4 & 1 \end{matrix}\right], \left[ \begin{matrix} 1 & 2 \\ 0 & 1 \end{matrix}\right], \left[ \begin{matrix} 1 & 0 \\ 4 & 7 \end{matrix}\right]$ | |||||||||
Images in lower levels |
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Meaning/Special name | ||||||||||
Chosen covering | $X_{100}$ | |||||||||
Curves that $X_{100g}$ minimally covers | ||||||||||
Curves that minimally cover $X_{100g}$ | ||||||||||
Curves that minimally cover $X_{100g}$ and have infinitely many rational points. | ||||||||||
Model | $\mathbb{P}^{1}$, a universal elliptic curve over an appropriate base is given by \[y^2 = x^3 + A(t)x + B(t), \text{ where}\] \[A(t) = -27t^{12} + 108t^{10} - 432t^{6} + 1728t^{2} - 1728\] \[B(t) = -54t^{18} + 324t^{16} - 324t^{14} - 1512t^{12} + 5184t^{10} - 10368t^{8} + 12096t^{6} + 10368t^{4} - 41472t^{2} + 27648\] | |||||||||
Info about rational points | ||||||||||
Comments on finding rational points | None | |||||||||
Elliptic curve whose $2$-adic image is the subgroup | $y^2 = x^3 - x^2 - 102132x - 12420540$, with conductor $12936$ | |||||||||
Generic density of odd order reductions | $691/5376$ |