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gp:[N,k,chi] = [54,14,Mod(1,54)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
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sage:from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(54, base_ring=CyclotomicField(2))
chi = DirichletCharacter(H, H._module([0]))
N = Newforms(chi, 14, names="a")
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magma://Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("54.1");
S:= CuspForms(chi, 14);
N := Newforms(S);
Newform invariants
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sage:traces = [2,128,0,8192,30720]
f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(5)] == traces)
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gp:f = lf[1] \\ Warning: the index may be different
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sage:f.q_expansion() # note that sage often uses an isomorphic number field
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gp:mfcoefs(f, 20)
Coefficients of the \(q\)-expansion are expressed in terms of \(\beta = 27\sqrt{96041}\).
We also show the integral \(q\)-expansion of the trace form.
For each embedding \(\iota_m\) of the coefficient field, the values \(\iota_m(a_n)\) are shown below.
For more information on an embedded modular form you can click on its label.
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gp:mfembed(f)
| \( p \) |
Sign
|
| \(2\) |
\( -1 \) |
| \(3\) |
\( -1 \) |
This newform does not admit any (nontrivial) inner twists.
This newform subspace can be constructed as the kernel of the linear operator
\( T_{5}^{2} - 30720T_{5} - 1514417625 \)
acting on \(S_{14}^{\mathrm{new}}(\Gamma_0(54))\).
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| $p$ |
$F_p(T)$ |
| $2$ |
\( (T - 64)^{2} \)
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|
| $3$ |
\( T^{2} \)
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|
| $5$ |
\( T^{2} + \cdots - 1514417625 \)
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|
| $7$ |
\( T^{2} + \cdots - 57990387329 \)
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|
| $11$ |
\( T^{2} + \cdots + 5006813591241 \)
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|
| $13$ |
\( T^{2} + \cdots - 67204330043600 \)
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|
| $17$ |
\( T^{2} + \cdots - 14\!\cdots\!24 \)
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|
| $19$ |
\( T^{2} + \cdots + 23\!\cdots\!36 \)
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|
| $23$ |
\( T^{2} + \cdots + 11\!\cdots\!24 \)
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|
| $29$ |
\( T^{2} + \cdots - 18\!\cdots\!00 \)
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|
| $31$ |
\( T^{2} + \cdots - 22\!\cdots\!81 \)
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|
| $37$ |
\( T^{2} + \cdots - 10\!\cdots\!56 \)
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|
| $41$ |
\( T^{2} + \cdots + 54\!\cdots\!64 \)
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|
| $43$ |
\( T^{2} + \cdots + 77\!\cdots\!64 \)
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|
| $47$ |
\( T^{2} + \cdots - 41\!\cdots\!36 \)
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|
| $53$ |
\( T^{2} + \cdots - 26\!\cdots\!81 \)
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|
| $59$ |
\( T^{2} + \cdots + 49\!\cdots\!24 \)
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|
| $61$ |
\( T^{2} + \cdots + 58\!\cdots\!56 \)
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|
| $67$ |
\( T^{2} + \cdots + 40\!\cdots\!84 \)
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|
| $71$ |
\( T^{2} + \cdots - 79\!\cdots\!00 \)
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| $73$ |
\( T^{2} + \cdots - 38\!\cdots\!99 \)
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| $79$ |
\( T^{2} + \cdots + 11\!\cdots\!00 \)
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|
| $83$ |
\( T^{2} + \cdots - 80\!\cdots\!75 \)
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|
| $89$ |
\( T^{2} + \cdots - 55\!\cdots\!96 \)
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| $97$ |
\( T^{2} + \cdots + 80\!\cdots\!81 \)
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