# Properties

 Label 16830ba Number of curves 2 Conductor 16830 CM no Rank 0 Graph # Related objects

Show commands for: SageMath
sage: E = EllipticCurve("16830.u1")
sage: E.isogeny_class()

## Elliptic curves in class 16830ba

sage: E.isogeny_class().curves
LMFDB label Cremona label Weierstrass coefficients Torsion order Modular degree Optimality
16830.u1 16830ba1 [1, -1, 0, -9218484, 10773772240] 2 1075200 $$\Gamma_0(N)$$-optimal
16830.u2 16830ba2 [1, -1, 0, -8318484, 12960592240] 2 2150400

## Rank

sage: E.rank()

The elliptic curves in class 16830ba have rank $$0$$.

## Modular form 16830.2.a.u

sage: E.q_eigenform(10)
$$q - q^{2} + q^{4} + q^{5} - 4q^{7} - q^{8} - q^{10} - q^{11} + 4q^{13} + 4q^{14} + q^{16} + q^{17} + 4q^{19} + O(q^{20})$$

## 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 Cremona 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 Cremona labels. 