# Properties

 Label 180708a Number of curves 2 Conductor 180708 CM no Rank 0 Graph # Related objects

Show commands for: SageMath
sage: E = EllipticCurve("180708.m1")

sage: E.isogeny_class()

## Elliptic curves in class 180708a

sage: E.isogeny_class().curves

LMFDB label Cremona label Weierstrass coefficients Torsion structure Modular degree Optimality
180708.m2 180708a1 [0, 1, 0, 3651, -45684]  290304 $$\Gamma_0(N)$$-optimal
180708.m1 180708a2 [0, 1, 0, -16884, -407100]  580608

## Rank

sage: E.rank()

The elliptic curves in class 180708a have rank $$0$$.

## Modular form 180708.2.a.m

sage: E.q_eigenform(10)

$$q + q^{3} - 2q^{5} - 2q^{7} + q^{9} + q^{11} + 2q^{13} - 2q^{15} - 4q^{17} + 6q^{19} + O(q^{20})$$

## 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. 