Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [5312,2,Mod(1,5312)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(5312, base_ring=CyclotomicField(2))
chi = DirichletCharacter(H, H._module([0, 0, 0]))
N = Newforms(chi, 2, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("5312.1");
S:= CuspForms(chi, 2);
N := Newforms(S);
| Level: | \( N \) | \(=\) | \( 5312 = 2^{6} \cdot 83 \) |
| Weight: | \( k \) | \(=\) | \( 2 \) |
| Character orbit: | \([\chi]\) | \(=\) | 5312.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: | \(42.4165335537\) |
| Analytic rank: | \(0\) |
| Dimension: | \(5\) |
| Coefficient field: | 5.5.356173.1 |
|
comment: defining polynomial
gp: f.mod \\ as an extension of the character field
|
|
| Defining polynomial: |
\( x^{5} - 2x^{4} - 7x^{3} + 9x^{2} + 14x - 4 \)
|
| Coefficient ring: | \(\Z[a_1, \ldots, a_{5}]\) |
| Coefficient ring index: | \( 1 \) |
| Twist minimal: | no (minimal twist has level 2656) |
| 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 \(1,\beta_1,\beta_2,\beta_3,\beta_4\) 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
\( x^{5} - 2x^{4} - 7x^{3} + 9x^{2} + 14x - 4 \)
:
| \(\beta_{1}\) | \(=\) |
\( \nu \)
|
| \(\beta_{2}\) | \(=\) |
\( \nu^{3} - \nu^{2} - 4\nu + 1 \)
|
| \(\beta_{3}\) | \(=\) |
\( ( \nu^{4} - 2\nu^{3} - 3\nu^{2} + 5\nu - 2 ) / 2 \)
|
| \(\beta_{4}\) | \(=\) |
\( ( \nu^{4} - 2\nu^{3} - 5\nu^{2} + 7\nu + 4 ) / 2 \)
|
| \(\nu\) | \(=\) |
\( \beta_1 \)
|
| \(\nu^{2}\) | \(=\) |
\( -\beta_{4} + \beta_{3} + \beta _1 + 3 \)
|
| \(\nu^{3}\) | \(=\) |
\( -\beta_{4} + \beta_{3} + \beta_{2} + 5\beta _1 + 2 \)
|
| \(\nu^{4}\) | \(=\) |
\( -5\beta_{4} + 7\beta_{3} + 2\beta_{2} + 8\beta _1 + 15 \)
|
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 |
|
0 | −2.75496 | 0 | −1.73916 | 0 | 0.439191 | 0 | 4.58981 | 0 | |||||||||||||||||||||||||||||||||
| 1.2 | 0 | −2.23241 | 0 | 1.43486 | 0 | 2.35286 | 0 | 1.98366 | 0 | ||||||||||||||||||||||||||||||||||
| 1.3 | 0 | −0.253142 | 0 | 3.77206 | 0 | −1.71163 | 0 | −2.93592 | 0 | ||||||||||||||||||||||||||||||||||
| 1.4 | 0 | 1.38363 | 0 | −4.11860 | 0 | 4.14739 | 0 | −1.08556 | 0 | ||||||||||||||||||||||||||||||||||
| 1.5 | 0 | 1.85688 | 0 | 1.65083 | 0 | 1.77219 | 0 | 0.448006 | 0 | ||||||||||||||||||||||||||||||||||
Atkin-Lehner signs
| \( p \) | Sign |
|---|---|
| \(2\) | \(-1\) |
| \(83\) | \(1\) |
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 | 5312.2.a.bj | 5 | |
| 4.b | odd | 2 | 1 | 5312.2.a.bk | 5 | ||
| 8.b | even | 2 | 1 | 2656.2.a.o | yes | 5 | |
| 8.d | odd | 2 | 1 | 2656.2.a.n | ✓ | 5 | |
| By twisted newform orbit | |||||||
|---|---|---|---|---|---|---|---|
| Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
| 2656.2.a.n | ✓ | 5 | 8.d | odd | 2 | 1 | |
| 2656.2.a.o | yes | 5 | 8.b | even | 2 | 1 | |
| 5312.2.a.bj | 5 | 1.a | even | 1 | 1 | trivial | |
| 5312.2.a.bk | 5 | 4.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 \(S_{2}^{\mathrm{new}}(\Gamma_0(5312))\):
|
\( T_{3}^{5} + 2T_{3}^{4} - 7T_{3}^{3} - 9T_{3}^{2} + 14T_{3} + 4 \)
|
|
\( T_{5}^{5} - T_{5}^{4} - 19T_{5}^{3} + 24T_{5}^{2} + 48T_{5} - 64 \)
|
|
\( T_{7}^{5} - 7T_{7}^{4} + 10T_{7}^{3} + 16T_{7}^{2} - 38T_{7} + 13 \)
|
|
\( T_{11}^{5} - 27T_{11}^{3} + 15T_{11}^{2} + 182T_{11} - 196 \)
|
Hecke characteristic polynomials
| $p$ | $F_p(T)$ |
|---|---|
| $2$ |
\( T^{5} \)
|
| $3$ |
\( T^{5} + 2 T^{4} + \cdots + 4 \)
|
| $5$ |
\( T^{5} - T^{4} + \cdots - 64 \)
|
| $7$ |
\( T^{5} - 7 T^{4} + \cdots + 13 \)
|
| $11$ |
\( T^{5} - 27 T^{3} + \cdots - 196 \)
|
| $13$ |
\( T^{5} + 5 T^{4} + \cdots - 8 \)
|
| $17$ |
\( T^{5} + 13 T^{4} + \cdots - 83 \)
|
| $19$ |
\( T^{5} - 3 T^{4} + \cdots - 2008 \)
|
| $23$ |
\( T^{5} - 6 T^{4} + \cdots - 1163 \)
|
| $29$ |
\( T^{5} + 12 T^{4} + \cdots + 1280 \)
|
| $31$ |
\( T^{5} - 9 T^{4} + \cdots - 1229 \)
|
| $37$ |
\( T^{5} - 91 T^{3} + \cdots + 4604 \)
|
| $41$ |
\( T^{5} - 14 T^{4} + \cdots + 55 \)
|
| $43$ |
\( T^{5} - 13 T^{4} + \cdots + 1480 \)
|
| $47$ |
\( T^{5} - 12 T^{4} + \cdots - 352 \)
|
| $53$ |
\( T^{5} - 15 T^{4} + \cdots - 632 \)
|
| $59$ |
\( T^{5} + 24 T^{4} + \cdots - 3652 \)
|
| $61$ |
\( T^{5} - 28 T^{4} + \cdots + 2384 \)
|
| $67$ |
\( T^{5} - 25 T^{4} + \cdots - 4544 \)
|
| $71$ |
\( T^{5} - 40 T^{4} + \cdots + 88832 \)
|
| $73$ |
\( T^{5} + 18 T^{4} + \cdots - 6880 \)
|
| $79$ |
\( T^{5} + 14 T^{4} + \cdots + 32 \)
|
| $83$ |
\( (T + 1)^{5} \)
|
| $89$ |
\( T^{5} + 8 T^{4} + \cdots + 346784 \)
|
| $97$ |
\( T^{5} - 12 T^{4} + \cdots - 8416 \)
|
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