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
15.1-a1	4.4.9909.1	15	15.1	15.1-a	\( \bigl[a\) , \( a^{3} - a^{2} - 3 a + 2\) , \( a^{2} - 2\) , \( 2 a^{3} + a^{2} - 11 a - 9\) , \( 3 a^{3} + a^{2} - 17 a - 16\bigr] \)
15.1-b2	4.4.9909.1	15	15.1	15.1-b	\( \bigl[a^{2} - 3\) , \( -a^{2} + 2 a + 2\) , \( a^{3} - a^{2} - 3 a + 2\) , \( 6 a^{3} - 13 a^{2} - 14 a + 15\) , \( -26 a^{3} + 48 a^{2} + 64 a - 40\bigr] \)