Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [1110,4,Mod(1,1110)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(1110, base_ring=CyclotomicField(2))
chi = DirichletCharacter(H, H._module([0, 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("1110.1");
S:= CuspForms(chi, 4);
N := Newforms(S);
| Level: | \( N \) | \(=\) | \( 1110 = 2 \cdot 3 \cdot 5 \cdot 37 \) |
| Weight: | \( k \) | \(=\) | \( 4 \) |
| Character orbit: | \([\chi]\) | \(=\) | 1110.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: | \(65.4921201064\) |
| Analytic rank: | \(1\) |
| Dimension: | \(2\) |
| Coefficient field: | \(\Q(\sqrt{61}) \) |
|
comment: defining polynomial
gp: f.mod \\ as an extension of the character field
|
|
| Defining polynomial: |
\( x^{2} - x - 15 \)
|
| Coefficient ring: | \(\Z[a_1, \ldots, a_{13}]\) |
| 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 \(\beta = \frac{1}{2}(1 + \sqrt{61})\). 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 |
|
2.00000 | 3.00000 | 4.00000 | 5.00000 | 6.00000 | −15.0000 | 8.00000 | 9.00000 | 10.0000 | ||||||||||||||||||||||||
| 1.2 | 2.00000 | 3.00000 | 4.00000 | 5.00000 | 6.00000 | −15.0000 | 8.00000 | 9.00000 | 10.0000 | |||||||||||||||||||||||||
Atkin-Lehner signs
| \( p \) | Sign |
|---|---|
| \(2\) | \(-1\) |
| \(3\) | \(-1\) |
| \(5\) | \(-1\) |
| \(37\) | \(1\) |
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 | 1110.4.a.d | ✓ | 2 |
| By twisted newform orbit | |||||||
|---|---|---|---|---|---|---|---|
| Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
| 1110.4.a.d | ✓ | 2 | 1.a | even | 1 | 1 | trivial |
Hecke kernels
This newform subspace can be constructed as the kernel of the linear operator
\( T_{7} + 15 \)
acting on \(S_{4}^{\mathrm{new}}(\Gamma_0(1110))\).
Hecke characteristic polynomials
| $p$ | $F_p(T)$ |
|---|---|
| $2$ |
\( (T - 2)^{2} \)
|
| $3$ |
\( (T - 3)^{2} \)
|
| $5$ |
\( (T - 5)^{2} \)
|
| $7$ |
\( (T + 15)^{2} \)
|
| $11$ |
\( T^{2} + 77T + 1345 \)
|
| $13$ |
\( T^{2} + 36T - 1201 \)
|
| $17$ |
\( T^{2} + 65T + 675 \)
|
| $19$ |
\( T^{2} + 55T - 4749 \)
|
| $23$ |
\( T^{2} + 128T - 6213 \)
|
| $29$ |
\( T^{2} + 53T - 35913 \)
|
| $31$ |
\( T^{2} + 388T + 27327 \)
|
| $37$ |
\( (T + 37)^{2} \)
|
| $41$ |
\( T^{2} - 118T - 125595 \)
|
| $43$ |
\( T^{2} + 353T - 11685 \)
|
| $47$ |
\( T^{2} + 146T + 1425 \)
|
| $53$ |
\( T^{2} + 448T - 169424 \)
|
| $59$ |
\( T^{2} + 17T - 375825 \)
|
| $61$ |
\( T^{2} + 18T - 70435 \)
|
| $67$ |
\( T^{2} - 147T - 75865 \)
|
| $71$ |
\( T^{2} + 45T - 131391 \)
|
| $73$ |
\( T^{2} - 163T - 27045 \)
|
| $79$ |
\( T^{2} + 53T - 10415 \)
|
| $83$ |
\( T^{2} + 1389 T + 228555 \)
|
| $89$ |
\( T^{2} + 1018T - 74955 \)
|
| $97$ |
\( T^{2} - 2318 T + 1255197 \)
|
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