# Properties

 Label 265200u Number of curves 2 Conductor 265200 CM no Rank 0 Graph # Related objects

Show commands for: SageMath
sage: E = EllipticCurve("265200.u1")

sage: E.isogeny_class()

## Elliptic curves in class 265200u

sage: E.isogeny_class().curves

LMFDB label Cremona label Weierstrass coefficients Torsion structure Modular degree Optimality
265200.u1 265200u1 [0, -1, 0, -77229883, 261255393262]  24330240 $$\Gamma_0(N)$$-optimal
265200.u2 265200u2 [0, -1, 0, -75387508, 274310462512]  48660480

## Rank

sage: E.rank()

The elliptic curves in class 265200u have rank $$0$$.

## Modular form 265200.2.a.u

sage: E.q_eigenform(10)

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

## 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.

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

## Isogeny graph

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

The vertices are labelled with Cremona labels. 