Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [1122,2,Mod(67,1122)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(1122, base_ring=CyclotomicField(2))
chi = DirichletCharacter(H, H._module([0, 0, 1]))
N = Newforms(chi, 2, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("1122.67");
S:= CuspForms(chi, 2);
N := Newforms(S);
| Level: | \( N \) | \(=\) | \( 1122 = 2 \cdot 3 \cdot 11 \cdot 17 \) |
| Weight: | \( k \) | \(=\) | \( 2 \) |
| Character orbit: | \([\chi]\) | \(=\) | 1122.c (of order \(2\), degree \(1\), minimal) |
Newform invariants
comment: select newform
sage: f = N[0] # Warning: the index may be different
gp: f = lf[1] \\ Warning: the index may be different
| Self dual: | no |
| Analytic conductor: | \(8.95921510679\) |
| Analytic rank: | \(0\) |
| Dimension: | \(6\) |
| Coefficient field: | 6.0.419904.1 |
|
comment: defining polynomial
gp: f.mod \\ as an extension of the character field
|
|
| Defining polynomial: |
\( x^{6} + 6x^{4} + 9x^{2} + 1 \)
|
| Coefficient ring: | \(\Z[a_1, \ldots, a_{7}]\) |
| Coefficient ring index: | \( 2^{4} \) |
| Twist minimal: | yes |
| Sato-Tate group: | $\mathrm{SU}(2)[C_{2}]$ |
$q$-expansion
comment: q-expansion
sage: f.q_expansion() # note that sage often uses an isomorphic number field
gp: mfcoefs(f, 20)
Coefficients of the \(q\)-expansion are expressed in terms of a basis \(1,\beta_1,\ldots,\beta_{5}\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.
Basis of coefficient ring in terms of a root \(\nu\) of
\( x^{6} + 6x^{4} + 9x^{2} + 1 \)
:
| \(\beta_{1}\) | \(=\) |
\( 2\nu \)
|
| \(\beta_{2}\) | \(=\) |
\( \nu^{3} + 3\nu \)
|
| \(\beta_{3}\) | \(=\) |
\( 2\nu^{2} + 4 \)
|
| \(\beta_{4}\) | \(=\) |
\( 2\nu^{4} + 8\nu^{2} + 4 \)
|
| \(\beta_{5}\) | \(=\) |
\( 2\nu^{5} + 10\nu^{3} + 10\nu \)
|
| \(\nu\) | \(=\) |
\( ( \beta_1 ) / 2 \)
|
| \(\nu^{2}\) | \(=\) |
\( ( \beta_{3} - 4 ) / 2 \)
|
| \(\nu^{3}\) | \(=\) |
\( ( 2\beta_{2} - 3\beta_1 ) / 2 \)
|
| \(\nu^{4}\) | \(=\) |
\( ( \beta_{4} - 4\beta_{3} + 12 ) / 2 \)
|
| \(\nu^{5}\) | \(=\) |
\( ( \beta_{5} - 10\beta_{2} + 10\beta_1 ) / 2 \)
|
Character values
We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/1122\mathbb{Z}\right)^\times\).
| \(n\) | \(409\) | \(749\) | \(1057\) |
| \(\chi(n)\) | \(1\) | \(1\) | \(-1\) |
Embeddings
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.
comment: embeddings in the coefficient field
gp: mfembed(f)
| Label | \(\iota_m(\nu)\) | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 67.1 |
|
1.00000 | − | 1.00000i | 1.00000 | − | 3.06418i | − | 1.00000i | − | 3.75877i | 1.00000 | −1.00000 | − | 3.06418i | |||||||||||||||||||||||||||||||
| 67.2 | 1.00000 | − | 1.00000i | 1.00000 | − | 0.694593i | − | 1.00000i | 3.06418i | 1.00000 | −1.00000 | − | 0.694593i | |||||||||||||||||||||||||||||||||
| 67.3 | 1.00000 | − | 1.00000i | 1.00000 | 3.75877i | − | 1.00000i | 0.694593i | 1.00000 | −1.00000 | 3.75877i | |||||||||||||||||||||||||||||||||||
| 67.4 | 1.00000 | 1.00000i | 1.00000 | − | 3.75877i | 1.00000i | − | 0.694593i | 1.00000 | −1.00000 | − | 3.75877i | ||||||||||||||||||||||||||||||||||
| 67.5 | 1.00000 | 1.00000i | 1.00000 | 0.694593i | 1.00000i | − | 3.06418i | 1.00000 | −1.00000 | 0.694593i | ||||||||||||||||||||||||||||||||||||
| 67.6 | 1.00000 | 1.00000i | 1.00000 | 3.06418i | 1.00000i | 3.75877i | 1.00000 | −1.00000 | 3.06418i | |||||||||||||||||||||||||||||||||||||
Inner twists
| Char | Parity | Ord | Mult | Type |
|---|---|---|---|---|
| 1.a | even | 1 | 1 | trivial |
| 17.b | even | 2 | 1 | inner |
Twists
| By twisting character orbit | |||||||
|---|---|---|---|---|---|---|---|
| Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
| 1.a | even | 1 | 1 | trivial | 1122.2.c.g | ✓ | 6 |
| 3.b | odd | 2 | 1 | 3366.2.c.g | 6 | ||
| 17.b | even | 2 | 1 | inner | 1122.2.c.g | ✓ | 6 |
| 51.c | odd | 2 | 1 | 3366.2.c.g | 6 | ||
| By twisted newform orbit | |||||||
|---|---|---|---|---|---|---|---|
| Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
| 1122.2.c.g | ✓ | 6 | 1.a | even | 1 | 1 | trivial |
| 1122.2.c.g | ✓ | 6 | 17.b | even | 2 | 1 | inner |
| 3366.2.c.g | 6 | 3.b | odd | 2 | 1 | ||
| 3366.2.c.g | 6 | 51.c | odd | 2 | 1 | ||
Hecke kernels
This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(1122, [\chi])\):
|
\( T_{5}^{6} + 24T_{5}^{4} + 144T_{5}^{2} + 64 \)
|
|
\( T_{7}^{6} + 24T_{7}^{4} + 144T_{7}^{2} + 64 \)
|
|
\( T_{19}^{3} - 12T_{19}^{2} + 36T_{19} - 24 \)
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Hecke characteristic polynomials
| $p$ | $F_p(T)$ |
|---|---|
| $2$ |
\( (T - 1)^{6} \)
|
| $3$ |
\( (T^{2} + 1)^{3} \)
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| $5$ |
\( T^{6} + 24 T^{4} + \cdots + 64 \)
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| $7$ |
\( T^{6} + 24 T^{4} + \cdots + 64 \)
|
| $11$ |
\( (T^{2} + 1)^{3} \)
|
| $13$ |
\( T^{6} \)
|
| $17$ |
\( T^{6} - 6 T^{5} + \cdots + 4913 \)
|
| $19$ |
\( (T^{3} - 12 T^{2} + \cdots - 24)^{2} \)
|
| $23$ |
\( T^{6} + 72 T^{4} + \cdots + 5184 \)
|
| $29$ |
\( T^{6} + 36 T^{4} + \cdots + 576 \)
|
| $31$ |
\( T^{6} + 84 T^{4} + \cdots + 64 \)
|
| $37$ |
\( T^{6} + 36 T^{4} + \cdots + 64 \)
|
| $41$ |
\( T^{6} + 144 T^{4} + \cdots + 36864 \)
|
| $43$ |
\( (T^{3} + 12 T^{2} + 36 T + 8)^{2} \)
|
| $47$ |
\( (T^{3} + 6 T^{2} - 8)^{2} \)
|
| $53$ |
\( (T^{3} - 12 T^{2} + 192)^{2} \)
|
| $59$ |
\( (T^{3} - 108 T + 216)^{2} \)
|
| $61$ |
\( T^{6} + 264 T^{4} + \cdots + 23104 \)
|
| $67$ |
\( (T^{3} - 48 T + 64)^{2} \)
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| $71$ |
\( T^{6} + 360 T^{4} + \cdots + 87616 \)
|
| $73$ |
\( T^{6} + 504 T^{4} + \cdots + 4631104 \)
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| $79$ |
\( T^{6} + 360 T^{4} + \cdots + 166464 \)
|
| $83$ |
\( (T^{3} - 48 T + 64)^{2} \)
|
| $89$ |
\( (T^{3} - 18 T^{2} + 60 T + 8)^{2} \)
|
| $97$ |
\( T^{6} + 288 T^{4} + \cdots + 331776 \)
|
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