Elliptic curve isogeny class with LMFDB label 8190.bt (Cremona label 8190bs)

• Label: 8190.bt
• Number of curves: $4$
• Conductor: $8190$
• CM: no
• Rank: $1$

Rank

The elliptic curves in class 8190.bt have rank \(1\).

L-function data

Bad L-factors:

Prime	L-Factor
\(2\)	\(1 - T\)
\(3\)	\(1\)
\(5\)	\(1 - T\)
\(7\)	\(1 - T\)
\(13\)	\(1 + T\)

Good L-factors:

Prime	L-Factor	Isogeny Class over \(\mathbb{F}_p\)
\(11\)	\( 1 + 4 T + 11 T^{2}\)	1.11.e
\(17\)	\( 1 + 2 T + 17 T^{2}\)	1.17.c
\(19\)	\( 1 - 4 T + 19 T^{2}\)	1.19.ae
\(23\)	\( 1 + 4 T + 23 T^{2}\)	1.23.e
\(29\)	\( 1 + 2 T + 29 T^{2}\)	1.29.c
$\cdots$	$\cdots$	$\cdots$

See L-function page for more information

Complex multiplication

The elliptic curves in class 8190.bt do not have complex multiplication.

Modular form 8190.2.a.bt

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 8190.bt

LMFDB label	Cremona label	Weierstrass coefficients	j-invariant	Discriminant	Torsion structure	Modular degree	Faltings height	Optimality
8190.bt1	8190bs3	\([1, -1, 1, -806432, 278941731]\)	\(79560762543506753209/479824800\)	\(349792279200\)	\([2]\)	\(81920\)	\(1.8231\)
8190.bt2	8190bs2	\([1, -1, 1, -50432, 4362531]\)	\(19458380202497209/47698560000\)	\(34772250240000\)	\([2, 2]\)	\(40960\)	\(1.4765\)
8190.bt3	8190bs4	\([1, -1, 1, -31712, 7627299]\)	\(-4837870546133689/31603162500000\)	\(-23038705462500000\)	\([2]\)	\(81920\)	\(1.8231\)
8190.bt4	8190bs1	\([1, -1, 1, -4352, 12579]\)	\(12501706118329/7156531200\)	\(5217111244800\)	\([2]\)	\(20480\)	\(1.1300\)	\(\Gamma_0(N)\)-optimal