Elliptic curve isogeny class with LMFDB label 491970.ba (Cremona label 491970ba)

• Label: 491970.ba
• Number of curves: $2$
• Conductor: $491970$
• CM: no
• Rank: $2$

Elliptic curves in class 491970.ba

LMFDB label	Cremona label	Weierstrass coefficients	j-invariant	Discriminant	Torsion structure	Modular degree	Faltings height	Optimality
491970.ba1	491970ba2	\([1, 0, 1, -3093339, -952246964]\)	\(22112561075061241/10151894531250\)	\(1502844731967832031250\)	\([2]\)	\(24330240\)	\(2.7583\)	\(\Gamma_0(N)\)-optimal^*
491970.ba2	491970ba1	\([1, 0, 1, 678431, -111896608]\)	\(233278475699879/171574537500\)	\(-25399189188576337500\)	\([2]\)	\(12165120\)	\(2.4117\)	\(\Gamma_0(N)\)-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 491970.ba1.

Rank

The elliptic curves in class 491970.ba have rank \(2\).

Complex multiplication

The elliptic curves in class 491970.ba do not have complex multiplication.

Modular form 491970.2.a.ba

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 LMFDB numbering.

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

Isogeny graph

The vertices are labelled with LMFDB labels.