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SageMath
E = EllipticCurve("eq1")
E.isogeny_class()
Elliptic curves in class 68400eq
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
68400.gc4 | 68400eq1 | \([0, 0, 0, -6840075, 7196440250]\) | \(-758575480593601/40535043840\) | \(-1891203005399040000000\) | \([2]\) | \(4423680\) | \(2.8415\) | \(\Gamma_0(N)\)-optimal |
68400.gc3 | 68400eq2 | \([0, 0, 0, -110808075, 448956472250]\) | \(3225005357698077121/8526675600\) | \(397820576793600000000\) | \([2, 2]\) | \(8847360\) | \(3.1881\) | |
68400.gc2 | 68400eq3 | \([0, 0, 0, -112176075, 437302480250]\) | \(3345930611358906241/165622259047500\) | \(7727272118120160000000000\) | \([2]\) | \(17694720\) | \(3.5347\) | |
68400.gc1 | 68400eq4 | \([0, 0, 0, -1772928075, 28733252512250]\) | \(13209596798923694545921/92340\) | \(4308215040000000\) | \([4]\) | \(17694720\) | \(3.5347\) |
Rank
sage: E.rank()
The elliptic curves in class 68400eq have rank \(1\).
Complex multiplication
The elliptic curves in class 68400eq do not have complex multiplication.Modular form 68400.2.a.eq
sage: E.q_eigenform(10)
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.