# Properties

 Label 6930.r Number of curves $2$ Conductor $6930$ CM no Rank $0$ Graph # Related objects

Show commands: SageMath
sage: E = EllipticCurve("r1")

sage: E.isogeny_class()

## Elliptic curves in class 6930.r

sage: E.isogeny_class().curves

LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
6930.r1 6930r1 $$[1, -1, 1, -263, -1573]$$ $$74246873427/16940$$ $$457380$$ $$$$ $$2048$$ $$0.077890$$ $$\Gamma_0(N)$$-optimal
6930.r2 6930r2 $$[1, -1, 1, -233, -1969]$$ $$-51603494067/35870450$$ $$-968502150$$ $$$$ $$4096$$ $$0.42446$$

## Rank

sage: E.rank()

The elliptic curves in class 6930.r have rank $$0$$.

## Complex multiplication

The elliptic curves in class 6930.r do not have complex multiplication.

## Modular form6930.2.a.r

sage: E.q_eigenform(10)

$$q + q^{2} + q^{4} - q^{5} - q^{7} + q^{8} - q^{10} - q^{11} - 6 q^{13} - q^{14} + q^{16} + 6 q^{19} + O(q^{20})$$

## 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. 