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gp:[N,k,chi] = [522,2,Mod(181,522)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
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magma://Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("522.181");
S:= CuspForms(chi, 2);
N := Newforms(S);
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sage:from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(522, base_ring=CyclotomicField(14))
chi = DirichletCharacter(H, H._module([0, 6]))
N = Newforms(chi, 2, names="a")
Newform invariants
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sage:traces = [6,1,0,-1,3]
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 a primitive root of unity \(\zeta_{14}\).
We also show the integral \(q\)-expansion of the trace form.
Character values
We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/522\mathbb{Z}\right)^\times\).
| \(n\) |
\(379\) |
\(407\) |
| \(\chi(n)\) |
\(-\zeta_{14}\) |
\(1\) |
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)
This newform subspace can be constructed as the kernel of the linear operator
\( T_{5}^{6} - 3T_{5}^{5} + 9T_{5}^{4} + T_{5}^{3} + 25T_{5}^{2} + 9T_{5} + 1 \)
acting on \(S_{2}^{\mathrm{new}}(522, [\chi])\).
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| $p$ |
$F_p(T)$ |
| $2$ |
\( T^{6} - T^{5} + T^{4} + \cdots + 1 \)
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|
| $3$ |
\( T^{6} \)
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|
| $5$ |
\( T^{6} - 3 T^{5} + \cdots + 1 \)
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|
| $7$ |
\( T^{6} + 6 T^{5} + \cdots + 169 \)
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|
| $11$ |
\( T^{6} + 7 T^{5} + \cdots + 49 \)
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|
| $13$ |
\( T^{6} - 12 T^{5} + \cdots + 10816 \)
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|
| $17$ |
\( (T^{3} + 12 T^{2} + \cdots - 104)^{2} \)
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|
| $19$ |
\( T^{6} - 16 T^{5} + \cdots + 118336 \)
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|
| $23$ |
\( T^{6} - 22 T^{5} + \cdots + 10816 \)
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|
| $29$ |
\( T^{6} + 15 T^{5} + \cdots + 24389 \)
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|
| $31$ |
\( T^{6} + 10 T^{5} + \cdots + 1 \)
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|
| $37$ |
\( T^{6} - 24 T^{5} + \cdots + 4096 \)
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| $41$ |
\( (T^{3} - 2 T^{2} + \cdots - 104)^{2} \)
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| $43$ |
\( T^{6} + 6 T^{5} + \cdots + 64 \)
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| $47$ |
\( T^{6} - 4 T^{5} + \cdots + 64 \)
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| $53$ |
\( T^{6} + 8 T^{5} + \cdots + 85849 \)
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| $59$ |
\( (T^{3} - 27 T^{2} + \cdots - 547)^{2} \)
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| $61$ |
\( T^{6} + 16 T^{5} + \cdots + 10816 \)
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| $67$ |
\( T^{6} + 8 T^{5} + \cdots + 53824 \)
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| $71$ |
\( T^{6} - 8 T^{5} + \cdots + 64 \)
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| $73$ |
\( T^{6} - 6 T^{5} + \cdots + 1681 \)
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| $79$ |
\( T^{6} - 16 T^{5} + \cdots + 4096 \)
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| $83$ |
\( T^{6} + 12 T^{5} + \cdots + 169 \)
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| $89$ |
\( T^{6} + 6 T^{5} + \cdots + 10816 \)
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|
| $97$ |
\( T^{6} + 10 T^{5} + \cdots + 15625 \)
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