Show commands:
SageMath
E = EllipticCurve("dj1")
E.isogeny_class()
Elliptic curves in class 123200.dj
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
123200.dj1 | 123200p4 | \([0, 0, 0, -33454700, -74478994000]\) | \(1010962818911303721/57392720\) | \(235080581120000000\) | \([2]\) | \(4718592\) | \(2.7998\) | |
123200.dj2 | 123200p3 | \([0, 0, 0, -3502700, 595054000]\) | \(1160306142246441/634128110000\) | \(2597388738560000000000\) | \([2]\) | \(4718592\) | \(2.7998\) | |
123200.dj3 | 123200p2 | \([0, 0, 0, -2094700, -1159314000]\) | \(248158561089321/1859334400\) | \(7615833702400000000\) | \([2, 2]\) | \(2359296\) | \(2.4533\) | |
123200.dj4 | 123200p1 | \([0, 0, 0, -46700, -41106000]\) | \(-2749884201/176619520\) | \(-723433553920000000\) | \([2]\) | \(1179648\) | \(2.1067\) | \(\Gamma_0(N)\)-optimal |
Rank
sage: E.rank()
The elliptic curves in class 123200.dj have rank \(0\).
Complex multiplication
The elliptic curves in class 123200.dj do not have complex multiplication.Modular form 123200.2.a.dj
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 LMFDB numbering.
\(\left(\begin{array}{rrrr} 1 & 4 & 2 & 4 \\ 4 & 1 & 2 & 4 \\ 2 & 2 & 1 & 2 \\ 4 & 4 & 2 & 1 \end{array}\right)\)
Isogeny graph
sage: E.isogeny_graph().plot(edge_labels=True)
The vertices are labelled with LMFDB labels.