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Properties

Label 26450i
Number of curves $4$
Conductor $26450$
CM no
Rank $1$
Graph

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Show commands: Magma / Pari/GP / SageMath
Copy content comment:Define the isogeny class
 
Copy content sage:E = EllipticCurve([1, 0, 1, -276, 20748]) E.isogeny_class()
 
Copy content magma:E := EllipticCurve([1, 0, 1, -276, 20748]); IsogenousCurves(E);
 
Copy content gp:E = ellinit([1, 0, 1, -276, 20748]) ellisomat(E)
 

Rank

Copy content comment:Mordell-Weil rank
 
Copy content sage:E.rank()
 
Copy content gp:[lower,upper] = ellrank(E)
 
Copy content magma:Rank(E);
 

The elliptic curves in class 26450i have rank \(1\).

L-function data

Bad L-factors:
Prime L-Factor
\(2\)\(1 + T\)
\(5\)\(1\)
\(23\)\(1\)
 
Good L-factors:
Prime L-Factor Isogeny Class over \(\mathbb{F}_p\)
\(3\) \( 1 - T + 3 T^{2}\) 1.3.ab
\(7\) \( 1 + 2 T + 7 T^{2}\) 1.7.c
\(11\) \( 1 - 3 T + 11 T^{2}\) 1.11.ad
\(13\) \( 1 + 4 T + 13 T^{2}\) 1.13.e
\(17\) \( 1 - 3 T + 17 T^{2}\) 1.17.ad
\(19\) \( 1 + 5 T + 19 T^{2}\) 1.19.f
\(29\) \( 1 + 29 T^{2}\) 1.29.a
$\cdots$$\cdots$$\cdots$
 
See L-function page for more information

Complex multiplication

The elliptic curves in class 26450i do not have complex multiplication.

Modular form 26450.2.a.i

Copy content comment:q-expansion of modular form
 
Copy content sage:E.q_eigenform(20)
 
Copy content gp:Ser(ellan(E,20),q)*q
 
Copy content magma:ModularForm(E);
 
\(q - q^{2} + q^{3} + q^{4} - q^{6} - 2 q^{7} - q^{8} - 2 q^{9} + 3 q^{11} + q^{12} - 4 q^{13} + 2 q^{14} + q^{16} + 3 q^{17} + 2 q^{18} - 5 q^{19} + O(q^{20})\) Copy content Toggle raw display

Isogeny matrix

Copy content comment:Isogeny matrix
 
Copy content sage:E.isogeny_class().matrix()
 
Copy content gp:ellisomat(E)
 

The \((i,j)\)-th 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.

\(\left(\begin{array}{rrrr} 1 & 3 & 5 & 15 \\ 3 & 1 & 15 & 5 \\ 5 & 15 & 1 & 3 \\ 15 & 5 & 3 & 1 \end{array}\right)\)

Isogeny graph

Copy content comment:Isogeny graph
 
Copy content sage:E.isogeny_graph().plot(edge_labels=True)
 

The vertices are labelled with Cremona labels, and the \( \Gamma_0(N) \)-optimal curve is highlighted in blue.

Elliptic curves in class 26450i

Copy content comment:List of curves in the isogeny class
 
Copy content sage:E.isogeny_class().curves
 
Copy content magma:IsogenousCurves(E);
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
26450.i3 26450i1 \([1, 0, 1, -276, 20748]\) \(-25/2\) \(-185044861250\) \([]\) \(23760\) \(0.84165\) \(\Gamma_0(N)\)-optimal
26450.i1 26450i2 \([1, 0, 1, -66401, 6580348]\) \(-349938025/8\) \(-740179445000\) \([]\) \(71280\) \(1.3910\)  
26450.i2 26450i3 \([1, 0, 1, -39951, -3708702]\) \(-121945/32\) \(-1850448612500000\) \([]\) \(118800\) \(1.6464\)  
26450.i4 26450i4 \([1, 0, 1, 290674, 27370048]\) \(46969655/32768\) \(-1894859379200000000\) \([]\) \(356400\) \(2.1957\)