Properties

 Label 2240f Number of curves $4$ Conductor $2240$ CM no Rank $0$ Graph

Related objects

Show commands for: SageMath
sage: E = EllipticCurve("2240.n1")

sage: E.isogeny_class()

Elliptic curves in class 2240f

sage: E.isogeny_class().curves

LMFDB label Cremona label Weierstrass coefficients Torsion structure Modular degree Optimality
2240.n4 2240f1 [0, 0, 0, 148, -1104] [2] 768 $$\Gamma_0(N)$$-optimal
2240.n3 2240f2 [0, 0, 0, -1132, -11856] [2, 2] 1536
2240.n1 2240f3 [0, 0, 0, -17132, -863056] [2] 3072
2240.n2 2240f4 [0, 0, 0, -5612, 151216] [4] 3072

Rank

sage: E.rank()

The elliptic curves in class 2240f have rank $$0$$.

Modular form2240.2.a.n

sage: E.q_eigenform(10)

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

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.

$$\left(\begin{array}{rrrr} 1 & 2 & 4 & 4 \\ 2 & 1 & 2 & 2 \\ 4 & 2 & 1 & 4 \\ 4 & 2 & 4 & 1 \end{array}\right)$$

Isogeny graph

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

The vertices are labelled with Cremona labels.