Elliptic curve isogeny class with Cremona label 479808iy (LMFDB label 479808.iy)

• Label: 479808iy
• Number of curves: $2$
• Conductor: $479808$
• CM: no
• Rank: $1$

Elliptic curves in class 479808iy

LMFDB label	Cremona label	Weierstrass coefficients	j-invariant	Discriminant	Torsion structure	Modular degree	Faltings height	Optimality
479808.iy2	479808iy1	\([0, 0, 0, -508620, -138994576]\)	\(647214625/3332\)	\(74913602646048768\)	\([2]\)	\(3538944\)	\(2.0838\)	\(\Gamma_0(N)\)-optimal^*
479808.iy1	479808iy2	\([0, 0, 0, -790860, 32494448]\)	\(2433138625/1387778\)	\(31201515502079311872\)	\([2]\)	\(7077888\)	\(2.4304\)	\(\Gamma_0(N)\)-optimal^*

^*optimality has not been determined rigorously for conductors over 400000. In this case the optimal curve is certainly one of the 2 curves highlighted, and conditionally curve 479808iy1.

Rank

The elliptic curves in class 479808iy have rank \(1\).

Complex multiplication

The elliptic curves in class 479808iy do not have complex multiplication.

Modular form 479808.2.a.iy

Isogeny matrix

The \(i,j\) entry is the smallest degree of a cyclic isogeny between the \(i\)-th and \(j\)-th curve in the isogeny class, in the Cremona numbering.

\(\left(\begin{array}{rr} 1 & 2 \\ 2 & 1 \end{array}\right)\)

Isogeny graph

The vertices are labelled with Cremona labels.