Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [1694,4,Mod(1,1694)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(1694, 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("1694.1");
S:= CuspForms(chi, 4);
N := Newforms(S);
| Level: | \( N \) | \(=\) | \( 1694 = 2 \cdot 7 \cdot 11^{2} \) |
| Weight: | \( k \) | \(=\) | \( 4 \) |
| Character orbit: | \([\chi]\) | \(=\) | 1694.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: | \(99.9492355497\) |
| Analytic rank: | \(1\) |
| Dimension: | \(3\) |
| Coefficient field: | 3.3.46700.1 |
|
comment: defining polynomial
gp: f.mod \\ as an extension of the character field
|
|
| Defining polynomial: |
\( x^{3} - x^{2} - 48x - 18 \)
|
| Coefficient ring: | \(\Z[a_1, \ldots, a_{5}]\) |
| Coefficient ring index: | \( 1 \) |
| 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
\( x^{3} - x^{2} - 48x - 18 \)
:
| \(\beta_{1}\) | \(=\) |
\( \nu \)
|
| \(\beta_{2}\) | \(=\) |
\( ( \nu^{2} - \nu - 33 ) / 3 \)
|
| \(\nu\) | \(=\) |
\( \beta_1 \)
|
| \(\nu^{2}\) | \(=\) |
\( 3\beta_{2} + \beta _1 + 33 \)
|
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 |
|
2.00000 | −8.23522 | 4.00000 | −9.27294 | −16.4704 | −7.00000 | 8.00000 | 40.8188 | −18.5459 | |||||||||||||||||||||||||||
| 1.2 | 2.00000 | −2.37913 | 4.00000 | 11.4466 | −4.75826 | −7.00000 | 8.00000 | −21.3397 | 22.8932 | ||||||||||||||||||||||||||||
| 1.3 | 2.00000 | 5.61435 | 4.00000 | 2.82636 | 11.2287 | −7.00000 | 8.00000 | 4.52091 | 5.65273 | ||||||||||||||||||||||||||||
Atkin-Lehner signs
| \( p \) | Sign |
|---|---|
| \(2\) | \(-1\) |
| \(7\) | \(1\) |
| \(11\) | \(1\) |
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 | 1694.4.a.u | yes | 3 |
| 11.b | odd | 2 | 1 | 1694.4.a.r | ✓ | 3 | |
| By twisted newform orbit | |||||||
|---|---|---|---|---|---|---|---|
| Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
| 1694.4.a.r | ✓ | 3 | 11.b | odd | 2 | 1 | |
| 1694.4.a.u | yes | 3 | 1.a | even | 1 | 1 | trivial |
Hecke kernels
This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{4}^{\mathrm{new}}(\Gamma_0(1694))\):
|
\( T_{3}^{3} + 5T_{3}^{2} - 40T_{3} - 110 \)
|
|
\( T_{5}^{3} - 5T_{5}^{2} - 100T_{5} + 300 \)
|
|
\( T_{13}^{3} + 34T_{13}^{2} - 1298T_{13} - 27848 \)
|
Hecke characteristic polynomials
| $p$ | $F_p(T)$ |
|---|---|
| $2$ |
\( (T - 2)^{3} \)
|
| $3$ |
\( T^{3} + 5 T^{2} + \cdots - 110 \)
|
| $5$ |
\( T^{3} - 5 T^{2} + \cdots + 300 \)
|
| $7$ |
\( (T + 7)^{3} \)
|
| $11$ |
\( T^{3} \)
|
| $13$ |
\( T^{3} + 34 T^{2} + \cdots - 27848 \)
|
| $17$ |
\( T^{3} - 38 T^{2} + \cdots - 169736 \)
|
| $19$ |
\( T^{3} + 60 T^{2} + \cdots - 362560 \)
|
| $23$ |
\( T^{3} + 315 T^{2} + \cdots - 350840 \)
|
| $29$ |
\( T^{3} + 80 T^{2} + \cdots + 514400 \)
|
| $31$ |
\( T^{3} + 165 T^{2} + \cdots - 963350 \)
|
| $37$ |
\( T^{3} + 225 T^{2} + \cdots - 20636360 \)
|
| $41$ |
\( T^{3} - 270 T^{2} + \cdots - 525440 \)
|
| $43$ |
\( T^{3} - 476 T^{2} + \cdots + 42322512 \)
|
| $47$ |
\( T^{3} - 490 T^{2} + \cdots + 41405480 \)
|
| $53$ |
\( T^{3} - 370 T^{2} + \cdots + 41394480 \)
|
| $59$ |
\( T^{3} - 13 T^{2} + \cdots + 4818614 \)
|
| $61$ |
\( T^{3} - 110 T^{2} + \cdots + 240520 \)
|
| $67$ |
\( T^{3} + 725 T^{2} + \cdots - 204200040 \)
|
| $71$ |
\( T^{3} + 281 T^{2} + \cdots + 75474808 \)
|
| $73$ |
\( T^{3} - 1286 T^{2} + \cdots + 41519072 \)
|
| $79$ |
\( T^{3} - 200 T^{2} + \cdots + 25120 \)
|
| $83$ |
\( T^{3} + 1896 T^{2} + \cdots + 14588768 \)
|
| $89$ |
\( T^{3} + \cdots - 1059468300 \)
|
| $97$ |
\( T^{3} + 735 T^{2} + \cdots - 217192260 \)
|
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