# Properties

 Label 25047e Number of curves 2 Conductor 25047 CM no Rank 1 Graph # Related objects

Show commands for: SageMath
sage: E = EllipticCurve("25047.b1")

sage: E.isogeny_class()

## Elliptic curves in class 25047e

sage: E.isogeny_class().curves

LMFDB label Cremona label Weierstrass coefficients Torsion structure Modular degree Optimality
25047.b2 25047e1 [1, -1, 1, -25070, -22211076]  153600 $$\Gamma_0(N)$$-optimal
25047.b1 25047e2 [1, -1, 1, -1348205, -597510174]  307200

## Rank

sage: E.rank()

The elliptic curves in class 25047e have rank $$1$$.

## Modular form 25047.2.a.b

sage: E.q_eigenform(10)

$$q - q^{2} - q^{4} + 2q^{7} + 3q^{8} - 2q^{13} - 2q^{14} - q^{16} - 2q^{19} + O(q^{20})$$

## 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. 