Elliptic curve isogeny class with LMFDB label 73920.ib (Cremona label 73920dt)

• Label: 73920.ib
• Number of curves: $4$
• Conductor: $73920$
• CM: no
• Rank: $1$

Rank

The elliptic curves in class 73920.ib have rank \(1\).

L-function data

Bad L-factors:

Prime	L-Factor
\(2\)	\(1\)
\(3\)	\(1 - T\)
\(5\)	\(1 - T\)
\(7\)	\(1 - T\)
\(11\)	\(1 - T\)

Good L-factors:

Prime	L-Factor	Isogeny Class over \(\mathbb{F}_p\)
\(13\)	\( 1 + 2 T + 13 T^{2}\)	1.13.c
\(17\)	\( 1 + 6 T + 17 T^{2}\)	1.17.g
\(19\)	\( 1 + 4 T + 19 T^{2}\)	1.19.e
\(23\)	\( 1 - 8 T + 23 T^{2}\)	1.23.ai
\(29\)	\( 1 + 2 T + 29 T^{2}\)	1.29.c
$\cdots$	$\cdots$	$\cdots$

See L-function page for more information

Complex multiplication

The elliptic curves in class 73920.ib do not have complex multiplication.

Modular form 73920.2.a.ib

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.

Elliptic curves in class 73920.ib

LMFDB label	Cremona label	Weierstrass coefficients	j-invariant	Discriminant	Torsion structure	Modular degree	Faltings height	Optimality
73920.ib1	73920dt4	\([0, 1, 0, -118305, -15701697]\)	\(1397097631688978/433125\)	\(56770560000\)	\([2]\)	\(262144\)	\(1.4260\)
73920.ib2	73920dt2	\([0, 1, 0, -7425, -245025]\)	\(690862540036/12006225\)	\(786839961600\)	\([2, 2]\)	\(131072\)	\(1.0794\)
73920.ib3	73920dt1	\([0, 1, 0, -945, 5103]\)	\(5702413264/2525985\)	\(41385738240\)	\([2]\)	\(65536\)	\(0.73285\)	\(\Gamma_0(N)\)-optimal
73920.ib4	73920dt3	\([0, 1, 0, -225, -692865]\)	\(-9653618/1581886845\)	\(-207341072547840\)	\([4]\)	\(262144\)	\(1.4260\)