Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [726,6,Mod(1,726)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(726, base_ring=CyclotomicField(2))
chi = DirichletCharacter(H, H._module([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("726.1");
S:= CuspForms(chi, 6);
N := Newforms(S);
| Level: | \( N \) | \(=\) | \( 726 = 2 \cdot 3 \cdot 11^{2} \) |
| Weight: | \( k \) | \(=\) | \( 6 \) |
| Character orbit: | \([\chi]\) | \(=\) | 726.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: | \(116.438653184\) |
| Analytic rank: | \(1\) |
| Dimension: | \(3\) |
| Coefficient field: | \(\mathbb{Q}[x]/(x^{3} - \cdots)\) |
|
comment: defining polynomial
gp: f.mod \\ as an extension of the character field
|
|
| Defining polynomial: |
\( x^{3} - x^{2} - 4996x + 123076 \)
|
| Coefficient ring: | \(\Z[a_1, \ldots, a_{7}]\) |
| 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 a basis \(1,\beta_1,\beta_2\) 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
\( x^{3} - x^{2} - 4996x + 123076 \)
:
| \(\beta_{1}\) | \(=\) |
\( \nu \)
|
| \(\beta_{2}\) | \(=\) |
\( ( \nu^{2} + 33\nu - 3340 ) / 6 \)
|
| \(\nu\) | \(=\) |
\( \beta_1 \)
|
| \(\nu^{2}\) | \(=\) |
\( 6\beta_{2} - 33\beta _1 + 3340 \)
|
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 | −46.5973 | −36.0000 | 223.428 | −64.0000 | 81.0000 | 186.389 | |||||||||||||||||||||||||||
| 1.2 | −4.00000 | 9.00000 | 16.0000 | −24.7045 | −36.0000 | −215.528 | −64.0000 | 81.0000 | 98.8179 | ||||||||||||||||||||||||||||
| 1.3 | −4.00000 | 9.00000 | 16.0000 | 85.3017 | −36.0000 | −2.89996 | −64.0000 | 81.0000 | −341.207 | ||||||||||||||||||||||||||||
Atkin-Lehner signs
| \( p \) | Sign |
|---|---|
| \(2\) | \(1\) |
| \(3\) | \(-1\) |
| \(11\) | \(-1\) |
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 | 726.6.a.w | ✓ | 3 |
| 11.b | odd | 2 | 1 | 726.6.a.y | yes | 3 | |
| By twisted newform orbit | |||||||
|---|---|---|---|---|---|---|---|
| Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
| 726.6.a.w | ✓ | 3 | 1.a | even | 1 | 1 | trivial |
| 726.6.a.y | yes | 3 | 11.b | odd | 2 | 1 | |
Hecke kernels
This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{6}^{\mathrm{new}}(\Gamma_0(726))\):
|
\( T_{5}^{3} - 14T_{5}^{2} - 4931T_{5} - 98196 \)
|
|
\( T_{7}^{3} - 5T_{7}^{2} - 48178T_{7} - 139648 \)
|
Hecke characteristic polynomials
| $p$ | $F_p(T)$ |
|---|---|
| $2$ |
\( (T + 4)^{3} \)
|
| $3$ |
\( (T - 9)^{3} \)
|
| $5$ |
\( T^{3} - 14 T^{2} + \cdots - 98196 \)
|
| $7$ |
\( T^{3} - 5 T^{2} + \cdots - 139648 \)
|
| $11$ |
\( T^{3} \)
|
| $13$ |
\( T^{3} - 234 T^{2} + \cdots + 424202118 \)
|
| $17$ |
\( T^{3} + 828 T^{2} + \cdots + 269034276 \)
|
| $19$ |
\( T^{3} + \cdots - 2079624096 \)
|
| $23$ |
\( T^{3} + \cdots + 6500180016 \)
|
| $29$ |
\( T^{3} + \cdots + 1973549970 \)
|
| $31$ |
\( T^{3} + \cdots + 368601768000 \)
|
| $37$ |
\( T^{3} + \cdots - 825095314617 \)
|
| $41$ |
\( T^{3} + \cdots - 594798348474 \)
|
| $43$ |
\( T^{3} + \cdots + 160106242912 \)
|
| $47$ |
\( T^{3} + \cdots + 746441870688 \)
|
| $53$ |
\( T^{3} + \cdots - 2928535095270 \)
|
| $59$ |
\( T^{3} + \cdots + 1436581182960 \)
|
| $61$ |
\( T^{3} + \cdots - 6837380161052 \)
|
| $67$ |
\( T^{3} + \cdots - 217752349977600 \)
|
| $71$ |
\( T^{3} + \cdots + 96893072507520 \)
|
| $73$ |
\( T^{3} + \cdots - 123809857816428 \)
|
| $79$ |
\( T^{3} + \cdots - 130654942335520 \)
|
| $83$ |
\( T^{3} + \cdots + 47319026455296 \)
|
| $89$ |
\( T^{3} + \cdots + 737821546802460 \)
|
| $97$ |
\( T^{3} + \cdots - 10\!\cdots\!45 \)
|
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