Properties

Label 91728.cr
Number of curves $2$
Conductor $91728$
CM no
Rank $1$
Graph

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Show commands: SageMath
Copy content sage:E = EllipticCurve("cr1") E.isogeny_class()
 

Rank

Copy content sage:E.rank()
 

The elliptic curves in class 91728.cr have rank \(1\).

L-function data

 
Bad L-factors:
Prime L-Factor
\(2\)\(1\)
\(3\)\(1\)
\(7\)\(1\)
\(13\)\(1 - T\)
 
Good L-factors:
Prime L-Factor Isogeny Class over \(\mathbb{F}_p\)
\(5\) \( 1 + T + 5 T^{2}\) 1.5.b
\(11\) \( 1 - 5 T + 11 T^{2}\) 1.11.af
\(17\) \( 1 + 3 T + 17 T^{2}\) 1.17.d
\(19\) \( 1 + T + 19 T^{2}\) 1.19.b
\(23\) \( 1 - 3 T + 23 T^{2}\) 1.23.ad
\(29\) \( 1 + 9 T + 29 T^{2}\) 1.29.j
$\cdots$$\cdots$$\cdots$
 
See L-function page for more information

Complex multiplication

The elliptic curves in class 91728.cr do not have complex multiplication.

Modular form 91728.2.a.cr

Copy content sage:E.q_eigenform(10)
 
\(q - q^{5} + 5 q^{11} + q^{13} - 3 q^{17} - q^{19} + O(q^{20})\) Copy content Toggle raw display

Isogeny matrix

Copy content sage:E.isogeny_class().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.

\(\left(\begin{array}{rr} 1 & 7 \\ 7 & 1 \end{array}\right)\)

Isogeny graph

Copy content sage:E.isogeny_graph().plot(edge_labels=True)
 

The vertices are labelled with LMFDB labels.

Elliptic curves in class 91728.cr

Copy content sage:E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
91728.cr1 91728fl2 \([0, 0, 0, -25927243923, 1606877034617554]\) \(-5486773802537974663600129/2635437714\) \(-925824081374770765824\) \([]\) \(75866112\) \(4.2620\)  
91728.cr2 91728fl1 \([0, 0, 0, 5037837, 49175168434]\) \(40251338884511/2997011332224\) \(-1052844181741137031593984\) \([]\) \(10838016\) \(3.2890\) \(\Gamma_0(N)\)-optimal