Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [462,6,Mod(1,462)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(462, base_ring=CyclotomicField(2))
chi = DirichletCharacter(H, H._module([0, 0, 0]))
N = Newforms(chi, 6, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("462.1");
S:= CuspForms(chi, 6);
N := Newforms(S);
| Level: | \( N \) | \(=\) | \( 462 = 2 \cdot 3 \cdot 7 \cdot 11 \) |
| Weight: | \( k \) | \(=\) | \( 6 \) |
| Character orbit: | \([\chi]\) | \(=\) | 462.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: | \(74.0973247536\) |
| Analytic rank: | \(1\) |
| Dimension: | \(2\) |
| Coefficient field: | \(\Q(\sqrt{71}) \) |
|
comment: defining polynomial
gp: f.mod \\ as an extension of the character field
|
|
| Defining polynomial: |
\( x^{2} - 71 \)
|
| Coefficient ring: | \(\Z[a_1, \ldots, a_{17}]\) |
| Coefficient ring index: | \( 2 \) |
| Twist minimal: | yes |
| 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 \(\beta = 2\sqrt{71}\). We also show the integral \(q\)-expansion of the trace form.
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 |
|
4.00000 | 9.00000 | 16.0000 | −80.7046 | 36.0000 | 49.0000 | 64.0000 | 81.0000 | −322.818 | ||||||||||||||||||||||||
| 1.2 | 4.00000 | 9.00000 | 16.0000 | −13.2954 | 36.0000 | 49.0000 | 64.0000 | 81.0000 | −53.1816 | |||||||||||||||||||||||||
Atkin-Lehner signs
| \( p \) | Sign |
|---|---|
| \(2\) | \(-1\) |
| \(3\) | \(-1\) |
| \(7\) | \(-1\) |
| \(11\) | \(-1\) |
Inner twists
This newform does not admit any (nontrivial) inner twists.
Twists
| By twisting character orbit | |||||||
|---|---|---|---|---|---|---|---|
| Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
| 1.a | even | 1 | 1 | trivial | 462.6.a.l | ✓ | 2 |
| By twisted newform orbit | |||||||
|---|---|---|---|---|---|---|---|
| Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
| 462.6.a.l | ✓ | 2 | 1.a | even | 1 | 1 | trivial |
Hecke kernels
This newform subspace can be constructed as the kernel of the linear operator
\( T_{5}^{2} + 94T_{5} + 1073 \)
acting on \(S_{6}^{\mathrm{new}}(\Gamma_0(462))\).
Hecke characteristic polynomials
| $p$ | $F_p(T)$ |
|---|---|
| $2$ |
\( (T - 4)^{2} \)
|
| $3$ |
\( (T - 9)^{2} \)
|
| $5$ |
\( T^{2} + 94T + 1073 \)
|
| $7$ |
\( (T - 49)^{2} \)
|
| $11$ |
\( (T - 121)^{2} \)
|
| $13$ |
\( T^{2} + 1022 T + 188417 \)
|
| $17$ |
\( T^{2} + 1192 T - 1417228 \)
|
| $19$ |
\( T^{2} + 3718 T + 3067085 \)
|
| $23$ |
\( T^{2} + 5596 T + 5045320 \)
|
| $29$ |
\( T^{2} - 3546 T - 28160087 \)
|
| $31$ |
\( T^{2} + 440 T - 85549484 \)
|
| $37$ |
\( T^{2} - 7826 T - 95981215 \)
|
| $41$ |
\( T^{2} + 2096 T - 75105712 \)
|
| $43$ |
\( T^{2} - 11220 T - 163704344 \)
|
| $47$ |
\( T^{2} + 26962 T + 167359861 \)
|
| $53$ |
\( T^{2} + 1036 T - 858582040 \)
|
| $59$ |
\( T^{2} + 29738 T + 47858237 \)
|
| $61$ |
\( T^{2} + 41964 T + 328951540 \)
|
| $67$ |
\( T^{2} + \cdots - 1270087427 \)
|
| $71$ |
\( T^{2} + \cdots - 1282367536 \)
|
| $73$ |
\( T^{2} + \cdots + 4644385505 \)
|
| $79$ |
\( T^{2} + \cdots + 1952587296 \)
|
| $83$ |
\( T^{2} + \cdots - 1051378492 \)
|
| $89$ |
\( T^{2} + \cdots - 5389259804 \)
|
| $97$ |
\( T^{2} + \cdots - 4959889144 \)
|
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