# Properties

 Label 9408.ck Number of curves $2$ Conductor $9408$ CM no Rank $0$ Graph # Related objects

Show commands for: SageMath
sage: E = EllipticCurve("9408.ck1")

sage: E.isogeny_class()

## Elliptic curves in class 9408.ck

sage: E.isogeny_class().curves

LMFDB label Cremona label Weierstrass coefficients Torsion structure Modular degree Optimality
9408.ck1 9408cq2 [0, 1, 0, -25153, 1356095]  28672
9408.ck2 9408cq1 [0, 1, 0, 2287, 110319]  14336 $$\Gamma_0(N)$$-optimal

## Rank

sage: E.rank()

The elliptic curves in class 9408.ck have rank $$0$$.

## Modular form9408.2.a.ck

sage: E.q_eigenform(10)

$$q + q^{3} + q^{9} - 4q^{13} + 4q^{17} - 4q^{19} + O(q^{20})$$

## Isogeny matrix

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.

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

## Isogeny graph

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

The vertices are labelled with LMFDB labels. 