Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [294,6,Mod(67,294)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(294, base_ring=CyclotomicField(6))
chi = DirichletCharacter(H, H._module([0, 4]))
N = Newforms(chi, 6, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("294.67");
S:= CuspForms(chi, 6);
N := Newforms(S);
| Level: | \( N \) | \(=\) | \( 294 = 2 \cdot 3 \cdot 7^{2} \) |
| Weight: | \( k \) | \(=\) | \( 6 \) |
| Character orbit: | \([\chi]\) | \(=\) | 294.e (of order \(3\), degree \(2\), not 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: | \(47.1528430250\) |
| Analytic rank: | \(0\) |
| Dimension: | \(4\) |
| Relative dimension: | \(2\) over \(\Q(\zeta_{3})\) |
| Coefficient field: | \(\Q(\sqrt{2}, \sqrt{-3})\) |
|
comment: defining polynomial
gp: f.mod \\ as an extension of the character field
|
|
| Defining polynomial: |
\( x^{4} + 2x^{2} + 4 \)
|
| Coefficient ring: | \(\Z[a_1, \ldots, a_{11}]\) |
| Coefficient ring index: | \( 1 \) |
| Twist minimal: | yes |
| Sato-Tate group: | $\mathrm{SU}(2)[C_{3}]$ |
$q$-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 \(1,\beta_1,\beta_2,\beta_3\) 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
\( x^{4} + 2x^{2} + 4 \)
:
| \(\beta_{1}\) | \(=\) |
\( \nu \)
|
| \(\beta_{2}\) | \(=\) |
\( ( \nu^{2} ) / 2 \)
|
| \(\beta_{3}\) | \(=\) |
\( ( \nu^{3} ) / 2 \)
|
| \(\nu\) | \(=\) |
\( \beta_1 \)
|
| \(\nu^{2}\) | \(=\) |
\( 2\beta_{2} \)
|
| \(\nu^{3}\) | \(=\) |
\( 2\beta_{3} \)
|
Character values
We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/294\mathbb{Z}\right)^\times\).
| \(n\) | \(197\) | \(199\) |
| \(\chi(n)\) | \(1\) | \(\beta_{2}\) |
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 |
|
−2.00000 | − | 3.46410i | 4.50000 | − | 7.79423i | −8.00000 | + | 13.8564i | −30.5355 | − | 52.8891i | −36.0000 | 0 | 64.0000 | −40.5000 | − | 70.1481i | −122.142 | + | 211.556i | ||||||||||||||||||
| 67.2 | −2.00000 | − | 3.46410i | 4.50000 | − | 7.79423i | −8.00000 | + | 13.8564i | −23.4645 | − | 40.6416i | −36.0000 | 0 | 64.0000 | −40.5000 | − | 70.1481i | −93.8579 | + | 162.567i | |||||||||||||||||||
| 79.1 | −2.00000 | + | 3.46410i | 4.50000 | + | 7.79423i | −8.00000 | − | 13.8564i | −30.5355 | + | 52.8891i | −36.0000 | 0 | 64.0000 | −40.5000 | + | 70.1481i | −122.142 | − | 211.556i | |||||||||||||||||||
| 79.2 | −2.00000 | + | 3.46410i | 4.50000 | + | 7.79423i | −8.00000 | − | 13.8564i | −23.4645 | + | 40.6416i | −36.0000 | 0 | 64.0000 | −40.5000 | + | 70.1481i | −93.8579 | − | 162.567i | |||||||||||||||||||
Inner twists
| Char | Parity | Ord | Mult | Type |
|---|---|---|---|---|
| 1.a | even | 1 | 1 | trivial |
| 7.c | even | 3 | 1 | inner |
Twists
| By twisting character orbit | |||||||
|---|---|---|---|---|---|---|---|
| Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
| 1.a | even | 1 | 1 | trivial | 294.6.e.v | 4 | |
| 7.b | odd | 2 | 1 | 294.6.e.u | 4 | ||
| 7.c | even | 3 | 1 | 294.6.a.t | ✓ | 2 | |
| 7.c | even | 3 | 1 | inner | 294.6.e.v | 4 | |
| 7.d | odd | 6 | 1 | 294.6.a.u | yes | 2 | |
| 7.d | odd | 6 | 1 | 294.6.e.u | 4 | ||
| 21.g | even | 6 | 1 | 882.6.a.bj | 2 | ||
| 21.h | odd | 6 | 1 | 882.6.a.z | 2 | ||
| By twisted newform orbit | |||||||
|---|---|---|---|---|---|---|---|
| Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
| 294.6.a.t | ✓ | 2 | 7.c | even | 3 | 1 | |
| 294.6.a.u | yes | 2 | 7.d | odd | 6 | 1 | |
| 294.6.e.u | 4 | 7.b | odd | 2 | 1 | ||
| 294.6.e.u | 4 | 7.d | odd | 6 | 1 | ||
| 294.6.e.v | 4 | 1.a | even | 1 | 1 | trivial | |
| 294.6.e.v | 4 | 7.c | even | 3 | 1 | inner | |
| 882.6.a.z | 2 | 21.h | odd | 6 | 1 | ||
| 882.6.a.bj | 2 | 21.g | even | 6 | 1 | ||
Hecke kernels
This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{6}^{\mathrm{new}}(294, [\chi])\):
|
\( T_{5}^{4} + 108T_{5}^{3} + 8798T_{5}^{2} + 309528T_{5} + 8213956 \)
|
|
\( T_{11}^{4} - 124T_{11}^{3} + 12180T_{11}^{2} - 396304T_{11} + 10214416 \)
|
Hecke characteristic polynomials
| $p$ | $F_p(T)$ |
|---|---|
| $2$ |
\( (T^{2} + 4 T + 16)^{2} \)
|
| $3$ |
\( (T^{2} - 9 T + 81)^{2} \)
|
| $5$ |
\( T^{4} + 108 T^{3} + \cdots + 8213956 \)
|
| $7$ |
\( T^{4} \)
|
| $11$ |
\( T^{4} - 124 T^{3} + \cdots + 10214416 \)
|
| $13$ |
\( (T^{2} - 720 T - 26082)^{2} \)
|
| $17$ |
\( T^{4} + \cdots + 8919337548676 \)
|
| $19$ |
\( T^{4} + \cdots + 1319723059264 \)
|
| $23$ |
\( T^{4} + \cdots + 2360684748304 \)
|
| $29$ |
\( (T^{2} + 4592 T - 825416)^{2} \)
|
| $31$ |
\( T^{4} + \cdots + 568235369185344 \)
|
| $37$ |
\( T^{4} + \cdots + 76\!\cdots\!64 \)
|
| $41$ |
\( (T^{2} - 20196 T + 93141202)^{2} \)
|
| $43$ |
\( (T^{2} + 1136 T - 136794176)^{2} \)
|
| $47$ |
\( T^{4} + \cdots + 10\!\cdots\!76 \)
|
| $53$ |
\( T^{4} + \cdots + 46\!\cdots\!76 \)
|
| $59$ |
\( T^{4} + \cdots + 18\!\cdots\!64 \)
|
| $61$ |
\( T^{4} + \cdots + 201516933183556 \)
|
| $67$ |
\( T^{4} + \cdots + 94\!\cdots\!56 \)
|
| $71$ |
\( (T^{2} - 76548 T - 263115396)^{2} \)
|
| $73$ |
\( T^{4} + \cdots + 14\!\cdots\!16 \)
|
| $79$ |
\( T^{4} + \cdots + 17\!\cdots\!56 \)
|
| $83$ |
\( (T^{2} - 94104 T + 554088976)^{2} \)
|
| $89$ |
\( T^{4} + \cdots + 12\!\cdots\!56 \)
|
| $97$ |
\( (T^{2} - 85176 T - 5372109218)^{2} \)
|
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