Properties

Label 30752f
Number of curves $4$
Conductor $30752$
CM \(\Q(\sqrt{-1}) \)
Rank $1$
Graph

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Show commands: SageMath
E = EllipticCurve("f1")
 
E.isogeny_class()
 

Elliptic curves in class 30752f

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality CM discriminant
30752.c3 30752f1 \([0, 0, 0, -961, 0]\) \(1728\) \(56800235584\) \([2, 2]\) \(15360\) \(0.75303\) \(\Gamma_0(N)\)-optimal \(-4\)
30752.c4 30752f2 \([0, 0, 0, 3844, 0]\) \(1728\) \(-3635215077376\) \([2]\) \(30720\) \(1.0996\)   \(-4\)
30752.c1 30752f3 \([0, 0, 0, -10571, -417074]\) \(287496\) \(454401884672\) \([2]\) \(30720\) \(1.0996\)   \(-16\)
30752.c2 30752f4 \([0, 0, 0, -10571, 417074]\) \(287496\) \(454401884672\) \([2]\) \(30720\) \(1.0996\)   \(-16\)

Rank

sage: E.rank()
 

The elliptic curves in class 30752f have rank \(1\).

Complex multiplication

Each elliptic curve in class 30752f has complex multiplication by an order in the imaginary quadratic field \(\Q(\sqrt{-1}) \).

Modular form 30752.2.a.f

sage: E.q_eigenform(10)
 
\(q - 2 q^{5} - 3 q^{9} - 6 q^{13} - 2 q^{17} + O(q^{20})\) Copy content Toggle raw display

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.

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

Isogeny graph

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

The vertices are labelled with Cremona labels.