Elliptic Curve Search Results

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Base field	Conductor norm	Isogenous curves	Base change curves	\(\Q\)-curves	CM curves
Torsion order	Isogeny degree	Torsion structure	j-invariant

Results (displaying both matches)

Label	Base field	Conductor norm	Conductor label	Isogeny class	Weierstrass coefficients
16.1-a2	4.4.9909.1	16	16.1	16.1-a	\( \bigl[a^{2} - 2\) , \( -a^{3} + 2 a^{2} + 2 a - 4\) , \( a^{2} - a - 2\) , \( 2 a^{3} - 4 a^{2} - 6 a + 3\) , \( -a - 1\bigr] \)
16.1-b2	4.4.9909.1	16	16.1	16.1-b	\( \bigl[a^{3} - a^{2} - 4 a + 2\) , \( a^{2} - 4\) , \( a^{2} - a - 2\) , \( -17 a^{3} + 20 a^{2} + 78 a - 38\) , \( -523 a^{3} + 632 a^{2} + 2376 a - 1303\bigr] \)