Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [1323,4,Mod(1,1323)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(1323, base_ring=CyclotomicField(2))
chi = DirichletCharacter(H, H._module([0, 0]))
N = Newforms(chi, 4, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("1323.1");
S:= CuspForms(chi, 4);
N := Newforms(S);
| Level: | \( N \) | \(=\) | \( 1323 = 3^{3} \cdot 7^{2} \) |
| Weight: | \( k \) | \(=\) | \( 4 \) |
| Character orbit: | \([\chi]\) | \(=\) | 1323.a (trivial) |
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: | yes |
| Analytic conductor: | \(78.0595269376\) |
| Analytic rank: | \(1\) |
| Dimension: | \(6\) |
| Coefficient field: | \(\mathbb{Q}[x]/(x^{6} - \cdots)\) |
|
comment: defining polynomial
gp: f.mod \\ as an extension of the character field
|
|
| Defining polynomial: |
\( x^{6} - 40x^{4} + 453x^{2} - 1278 \)
|
| Coefficient ring: | \(\Z[a_1, \ldots, a_{5}]\) |
| Coefficient ring index: | \( 2^{2}\cdot 3^{2} \) |
| Twist minimal: | no (minimal twist has level 189) |
| Fricke sign: | \(-1\) |
| Sato-Tate group: | $\mathrm{SU}(2)$ |
$q$-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
\( x^{6} - 40x^{4} + 453x^{2} - 1278 \)
:
| \(\beta_{1}\) | \(=\) |
\( \nu \)
|
| \(\beta_{2}\) | \(=\) |
\( ( \nu^{5} - 19\nu^{3} - 6\nu ) / 12 \)
|
| \(\beta_{3}\) | \(=\) |
\( \nu^{2} - 13 \)
|
| \(\beta_{4}\) | \(=\) |
\( ( \nu^{5} - 31\nu^{3} + 198\nu ) / 12 \)
|
| \(\beta_{5}\) | \(=\) |
\( ( \nu^{4} - 27\nu^{2} + 130 ) / 4 \)
|
| \(\nu\) | \(=\) |
\( \beta_1 \)
|
| \(\nu^{2}\) | \(=\) |
\( \beta_{3} + 13 \)
|
| \(\nu^{3}\) | \(=\) |
\( -\beta_{4} + \beta_{2} + 17\beta_1 \)
|
| \(\nu^{4}\) | \(=\) |
\( 4\beta_{5} + 27\beta_{3} + 221 \)
|
| \(\nu^{5}\) | \(=\) |
\( -19\beta_{4} + 31\beta_{2} + 329\beta_1 \)
|
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 | \(\iota_m(\nu)\) | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1.1 |
|
−4.70753 | 0 | 14.1608 | −0.830453 | 0 | 0 | −29.0024 | 0 | 3.90938 | ||||||||||||||||||||||||||||||||||||
| 1.2 | −3.68757 | 0 | 5.59820 | 11.8719 | 0 | 0 | 8.85681 | 0 | −43.7785 | |||||||||||||||||||||||||||||||||||||
| 1.3 | −2.05936 | 0 | −3.75905 | −14.5041 | 0 | 0 | 24.2161 | 0 | 29.8691 | |||||||||||||||||||||||||||||||||||||
| 1.4 | 2.05936 | 0 | −3.75905 | 14.5041 | 0 | 0 | −24.2161 | 0 | 29.8691 | |||||||||||||||||||||||||||||||||||||
| 1.5 | 3.68757 | 0 | 5.59820 | −11.8719 | 0 | 0 | −8.85681 | 0 | −43.7785 | |||||||||||||||||||||||||||||||||||||
| 1.6 | 4.70753 | 0 | 14.1608 | 0.830453 | 0 | 0 | 29.0024 | 0 | 3.90938 | |||||||||||||||||||||||||||||||||||||
Atkin-Lehner signs
| \( p \) | Sign |
|---|---|
| \(3\) | \(-1\) |
| \(7\) | \(1\) |
Inner twists
| Char | Parity | Ord | Mult | Type |
|---|---|---|---|---|
| 1.a | even | 1 | 1 | trivial |
| 3.b | odd | 2 | 1 | inner |
Twists
| By twisting character orbit | |||||||
|---|---|---|---|---|---|---|---|
| Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
| 1.a | even | 1 | 1 | trivial | 1323.4.a.bd | 6 | |
| 3.b | odd | 2 | 1 | inner | 1323.4.a.bd | 6 | |
| 7.b | odd | 2 | 1 | 1323.4.a.be | 6 | ||
| 7.c | even | 3 | 2 | 189.4.e.e | ✓ | 12 | |
| 21.c | even | 2 | 1 | 1323.4.a.be | 6 | ||
| 21.h | odd | 6 | 2 | 189.4.e.e | ✓ | 12 | |
| By twisted newform orbit | |||||||
|---|---|---|---|---|---|---|---|
| Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
| 189.4.e.e | ✓ | 12 | 7.c | even | 3 | 2 | |
| 189.4.e.e | ✓ | 12 | 21.h | odd | 6 | 2 | |
| 1323.4.a.bd | 6 | 1.a | even | 1 | 1 | trivial | |
| 1323.4.a.bd | 6 | 3.b | odd | 2 | 1 | inner | |
| 1323.4.a.be | 6 | 7.b | odd | 2 | 1 | ||
| 1323.4.a.be | 6 | 21.c | even | 2 | 1 | ||
Hecke kernels
This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{4}^{\mathrm{new}}(\Gamma_0(1323))\):
|
\( T_{2}^{6} - 40T_{2}^{4} + 453T_{2}^{2} - 1278 \)
|
|
\( T_{5}^{6} - 352T_{5}^{4} + 29892T_{5}^{2} - 20448 \)
|
|
\( T_{13}^{3} - 26T_{13}^{2} - 3211T_{13} - 35818 \)
|
Hecke characteristic polynomials
| $p$ | $F_p(T)$ |
|---|---|
| $2$ |
\( T^{6} - 40 T^{4} + \cdots - 1278 \)
|
| $3$ |
\( T^{6} \)
|
| $5$ |
\( T^{6} - 352 T^{4} + \cdots - 20448 \)
|
| $7$ |
\( T^{6} \)
|
| $11$ |
\( T^{6} + \cdots - 2041855488 \)
|
| $13$ |
\( (T^{3} - 26 T^{2} + \cdots - 35818)^{2} \)
|
| $17$ |
\( T^{6} + \cdots - 4889546208 \)
|
| $19$ |
\( (T^{3} + 31 T^{2} + \cdots - 71044)^{2} \)
|
| $23$ |
\( T^{6} + \cdots - 54061976448 \)
|
| $29$ |
\( T^{6} + \cdots - 1224041183712 \)
|
| $31$ |
\( (T^{3} + 41 T^{2} + \cdots - 2204979)^{2} \)
|
| $37$ |
\( (T^{3} + 566 T^{2} + \cdots + 4245738)^{2} \)
|
| $41$ |
\( T^{6} + \cdots - 69555350983392 \)
|
| $43$ |
\( (T^{3} + 783 T^{2} + \cdots + 15519697)^{2} \)
|
| $47$ |
\( T^{6} + \cdots - 554088448396512 \)
|
| $53$ |
\( T^{6} + \cdots - 248222191554432 \)
|
| $59$ |
\( T^{6} + \cdots - 26\!\cdots\!72 \)
|
| $61$ |
\( (T^{3} - 443 T^{2} + \cdots + 219938513)^{2} \)
|
| $67$ |
\( (T^{3} + 1042 T^{2} + \cdots - 181536376)^{2} \)
|
| $71$ |
\( T^{6} + \cdots - 17\!\cdots\!28 \)
|
| $73$ |
\( (T^{3} + 1199 T^{2} + \cdots - 138593088)^{2} \)
|
| $79$ |
\( (T^{3} - 492 T^{2} + \cdots - 61449092)^{2} \)
|
| $83$ |
\( T^{6} + \cdots - 28\!\cdots\!92 \)
|
| $89$ |
\( T^{6} + \cdots - 51\!\cdots\!68 \)
|
| $97$ |
\( (T^{3} + 341 T^{2} + \cdots - 1582590381)^{2} \)
|
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