Elliptic curve isogeny class with LMFDB label 198198.dc (Cremona label 198198j)

• Label: 198198.dc
• Number of curves: $2$
• Conductor: $198198$
• CM: no
• Rank: $2$

Rank

The elliptic curves in class 198198.dc have rank \(2\).

L-function data

Bad L-factors:

Prime	L-Factor
\(2\)	\(1 - T\)
\(3\)	\(1\)
\(7\)	\(1 - T\)
\(11\)	\(1\)
\(13\)	\(1 + T\)

Good L-factors:

Prime	L-Factor	Isogeny Class over \(\mathbb{F}_p\)
\(5\)	\( 1 + 2 T + 5 T^{2}\)	1.5.c
\(17\)	\( 1 + 2 T + 17 T^{2}\)	1.17.c
\(19\)	\( 1 + 6 T + 19 T^{2}\)	1.19.g
\(23\)	\( 1 + 23 T^{2}\)	1.23.a
\(29\)	\( 1 + 6 T + 29 T^{2}\)	1.29.g
$\cdots$	$\cdots$	$\cdots$

See L-function page for more information

Complex multiplication

The elliptic curves in class 198198.dc do not have complex multiplication.

Modular form 198198.2.a.dc

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.

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

Isogeny graph

The vertices are labelled with LMFDB labels.

Elliptic curves in class 198198.dc

LMFDB label	Cremona label	Weierstrass coefficients	j-invariant	Discriminant	Torsion structure	Modular degree	Faltings height	Optimality
198198.dc1	198198j2	\([1, -1, 1, -1090541, 438508117]\)	\(147823591247088723/40719730688\)	\(39510313966835712\)	\([2]\)	\(3649536\)	\(2.1669\)
198198.dc2	198198j1	\([1, -1, 1, -76781, 5024341]\)	\(51591020416083/18702401536\)	\(18146921507979264\)	\([2]\)	\(1824768\)	\(1.8203\)	\(\Gamma_0(N)\)-optimal