Elliptic curve isogeny class with LMFDB label 405720.bo (Cremona label 405720bo)

• Label: 405720.bo
• Number of curves: $4$
• Conductor: $405720$
• CM: no
• Rank: $1$

Elliptic curves in class 405720.bo

LMFDB label	Cremona label	Weierstrass coefficients	j-invariant	Discriminant	Torsion structure	Modular degree	Faltings height	Optimality
405720.bo1	405720bo3	\([0, 0, 0, -1518363, 720116838]\)	\(4407931365156/100625\)	\(8837341107840000\)	\([2]\)	\(3932160\)	\(2.1733\)	\(\Gamma_0(N)\)-optimal^*
405720.bo2	405720bo4	\([0, 0, 0, -407043, -89442738]\)	\(84923690436/9794435\)	\(860191434072714240\)	\([2]\)	\(3932160\)	\(2.1733\)
405720.bo3	405720bo2	\([0, 0, 0, -98343, 10390842]\)	\(4790692944/648025\)	\(14228119183622400\)	\([2, 2]\)	\(1966080\)	\(1.8268\)	\(\Gamma_0(N)\)-optimal^*
405720.bo4	405720bo1	\([0, 0, 0, 9702, 861273]\)	\(73598976/276115\)	\(-378900999998640\)	\([2]\)	\(983040\)	\(1.4802\)	\(\Gamma_0(N)\)-optimal^*

^*optimality has not been determined rigorously for conductors over 400000. In this case the optimal curve is certainly one of the 3 curves highlighted, and conditionally curve 405720.bo1.

Rank

The elliptic curves in class 405720.bo have rank \(1\).

Complex multiplication

The elliptic curves in class 405720.bo do not have complex multiplication.

Modular form 405720.2.a.bo

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.

\(\left(\begin{array}{rrrr} 1 & 4 & 2 & 4 \\ 4 & 1 & 2 & 4 \\ 2 & 2 & 1 & 2 \\ 4 & 4 & 2 & 1 \end{array}\right)\)

Isogeny graph

The vertices are labelled with LMFDB labels.