Elliptic curve isogeny class with LMFDB label 168.b (Cremona label 168a)

• Label: 168.b
• Number of curves: $4$
• Conductor: $168$
• CM: no
• Rank: $0$

Elliptic curves in class 168.b

LMFDB label	Cremona label	Weierstrass coefficients	Torsion structure	Modular degree	Optimality
168.b1	168a3	[0, 1, 0, -152, 672]	[4]	32
168.b2	168a2	[0, 1, 0, -12, 0]	[2, 2]	16
168.b3	168a1	[0, 1, 0, -7, -10]	[2]	8	\(\Gamma_0(N)\)-optimal
168.b4	168a4	[0, 1, 0, 48, 48]	[2]	32

Rank

The elliptic curves in class 168.b have rank \(0\).

Complex multiplication

The elliptic curves in class 168.b do not have complex multiplication.

Modular form 168.2.a.b

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.

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

Isogeny graph

The vertices are labelled with LMFDB labels.