Properties

 Label 2112h Number of curves 4 Conductor 2112 CM no Rank 0 Graph

Related objects

Show commands for: SageMath
sage: E = EllipticCurve("2112.f1")

sage: E.isogeny_class()

Elliptic curves in class 2112h

sage: E.isogeny_class().curves

LMFDB label Cremona label Weierstrass coefficients Torsion structure Modular degree Optimality
2112.f4 2112h1 [0, -1, 0, -5204, 116478] [2] 3840 $$\Gamma_0(N)$$-optimal
2112.f2 2112h2 [0, -1, 0, -78409, 8476489] [2, 2] 7680
2112.f1 2112h3 [0, -1, 0, -1254529, 541258849] [4] 15360
2112.f3 2112h4 [0, -1, 0, -73569, 9563553] [2] 15360

Rank

sage: E.rank()

The elliptic curves in class 2112h have rank $$0$$.

Modular form2112.2.a.f

sage: E.q_eigenform(10)

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

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.

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

Isogeny graph

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

The vertices are labelled with Cremona labels.