Elliptic curve isogeny class with Cremona label 42320y (LMFDB label 42320.i)

• Label: 42320y
• Number of curves: $2$
• Conductor: $42320$
• CM: no
• Rank: $2$

Rank

The elliptic curves in class 42320y have rank \(2\).

L-function data

Bad L-factors:

Prime	L-Factor
\(2\)	\(1\)
\(5\)	\(1 - T\)
\(23\)	\(1\)

Good L-factors:

Prime	L-Factor	Isogeny Class over \(\mathbb{F}_p\)
\(3\)	\( 1 - T + 3 T^{2}\)	1.3.ab
\(7\)	\( 1 - 2 T + 7 T^{2}\)	1.7.ac
\(11\)	\( 1 - 4 T + 11 T^{2}\)	1.11.ae
\(13\)	\( 1 - 4 T + 13 T^{2}\)	1.13.ae
\(17\)	\( 1 + 3 T + 17 T^{2}\)	1.17.d
\(19\)	\( 1 - T + 19 T^{2}\)	1.19.ab
\(29\)	\( 1 - 8 T + 29 T^{2}\)	1.29.ai
$\cdots$	$\cdots$	$\cdots$

See L-function page for more information

Complex multiplication

The elliptic curves in class 42320y do not have complex multiplication.

Modular form 42320.2.a.y

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.

\(\left(\begin{array}{rr} 1 & 3 \\ 3 & 1 \end{array}\right)\)

Isogeny graph

The vertices are labelled with Cremona labels.

Elliptic curves in class 42320y

LMFDB label	Cremona label	Weierstrass coefficients	j-invariant	Discriminant	Torsion structure	Modular degree	Faltings height	Optimality
42320.i1	42320y1	\([0, -1, 0, -24510, 6631975]\)	\(-687518464/7604375\)	\(-18011526614630000\)	\([]\)	\(304128\)	\(1.8012\)	\(\Gamma_0(N)\)-optimal
42320.i2	42320y2	\([0, -1, 0, 218830, -171054893]\)	\(489277573376/5615234375\)	\(-13300099402343750000\)	\([]\)	\(912384\)	\(2.3505\)