# Properties

 Label 28224.dr Number of curves $2$ Conductor $28224$ CM no Rank $1$ Graph

# Related objects

Show commands: SageMath
sage: E = EllipticCurve("dr1")

sage: E.isogeny_class()

## Elliptic curves in class 28224.dr

sage: E.isogeny_class().curves

LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
28224.dr1 28224bk1 $$[0, 0, 0, -3675, -80948]$$ $$1000000/63$$ $$345808999872$$ $$[2]$$ $$24576$$ $$0.96514$$ $$\Gamma_0(N)$$-optimal
28224.dr2 28224bk2 $$[0, 0, 0, 2940, -340256]$$ $$8000/147$$ $$-51640810647552$$ $$[2]$$ $$49152$$ $$1.3117$$

## Rank

sage: E.rank()

The elliptic curves in class 28224.dr have rank $$1$$.

## Complex multiplication

The elliptic curves in class 28224.dr do not have complex multiplication.

## Modular form 28224.2.a.dr

sage: E.q_eigenform(10)

$$q + 2 q^{11} - 2 q^{13} + 4 q^{17} + 4 q^{19} + O(q^{20})$$

## 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 LMFDB 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 LMFDB labels.