Elliptic curve isogeny class with LMFDB label 38080.bc (Cremona label 38080br)

• Label: 38080.bc
• Number of curves: $4$
• Conductor: $38080$
• CM: no
• Rank: $1$

Rank

The elliptic curves in class 38080.bc have rank \(1\).

L-function data

Bad L-factors:

Prime	L-Factor
\(2\)	\(1\)
\(5\)	\(1 - T\)
\(7\)	\(1 - T\)
\(17\)	\(1 - T\)

Good L-factors:

Prime	L-Factor	Isogeny Class over \(\mathbb{F}_p\)
\(3\)	\( 1 + 3 T^{2}\)	1.3.a
\(11\)	\( 1 + 4 T + 11 T^{2}\)	1.11.e
\(13\)	\( 1 + 2 T + 13 T^{2}\)	1.13.c
\(19\)	\( 1 + 8 T + 19 T^{2}\)	1.19.i
\(23\)	\( 1 + 23 T^{2}\)	1.23.a
\(29\)	\( 1 - 2 T + 29 T^{2}\)	1.29.ac
$\cdots$	$\cdots$	$\cdots$

See L-function page for more information

Complex multiplication

The elliptic curves in class 38080.bc do not have complex multiplication.

Modular form 38080.2.a.bc

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.

Elliptic curves in class 38080.bc

LMFDB label	Cremona label	Weierstrass coefficients	j-invariant	Discriminant	Torsion structure	Modular degree	Faltings height	Optimality
38080.bc1	38080br4	\([0, 0, 0, -88387052, -319838755504]\)	\(291306206119284545407569/101150000000\)	\(26515865600000000\)	\([2]\)	\(2064384\)	\(2.9449\)
38080.bc2	38080br3	\([0, 0, 0, -6548972, -3014761136]\)	\(118495863754334673489/53596139570691200\)	\(14049906411619273932800\)	\([4]\)	\(2064384\)	\(2.9449\)
38080.bc3	38080br2	\([0, 0, 0, -5524972, -4995996336]\)	\(71149857462630609489/41907496960000\)	\(10985798883082240000\)	\([2, 2]\)	\(1032192\)	\(2.5983\)
38080.bc4	38080br1	\([0, 0, 0, -282092, -107535024]\)	\(-9470133471933009/13576123187200\)	\(-3558899236785356800\)	\([2]\)	\(516096\)	\(2.2518\)	\(\Gamma_0(N)\)-optimal