Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [315,10,Mod(1,315)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(315, base_ring=CyclotomicField(2))
chi = DirichletCharacter(H, H._module([0, 0, 0]))
N = Newforms(chi, 10, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("315.1");
S:= CuspForms(chi, 10);
N := Newforms(S);
| Level: | \( N \) | \(=\) | \( 315 = 3^{2} \cdot 5 \cdot 7 \) |
| Weight: | \( k \) | \(=\) | \( 10 \) |
| Character orbit: | \([\chi]\) | \(=\) | 315.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: | \(162.236288392\) |
| Analytic rank: | \(0\) |
| Dimension: | \(6\) |
| Coefficient field: | \(\mathbb{Q}[x]/(x^{6} - \cdots)\) |
|
comment: defining polynomial
gp: f.mod \\ as an extension of the character field
|
|
| Defining polynomial: |
\( x^{6} - 2x^{5} - 2794x^{4} - 2896x^{3} + 1850461x^{2} + 7006450x - 230581716 \)
|
| Coefficient ring: | \(\Z[a_1, \ldots, a_{11}]\) |
| Coefficient ring index: | \( 2^{7}\cdot 3^{2}\cdot 5^{2} \) |
| Twist minimal: | no (minimal twist has level 105) |
| 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 \(1,\beta_1,\ldots,\beta_{5}\) 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
\( x^{6} - 2x^{5} - 2794x^{4} - 2896x^{3} + 1850461x^{2} + 7006450x - 230581716 \)
:
| \(\beta_{1}\) | \(=\) |
\( \nu \)
|
| \(\beta_{2}\) | \(=\) |
\( \nu^{2} - 4\nu - 931 \)
|
| \(\beta_{3}\) | \(=\) |
\( ( \nu^{5} + 65\nu^{4} - 831\nu^{3} - 147077\nu^{2} - 1440050\nu + 40535476 ) / 2392 \)
|
| \(\beta_{4}\) | \(=\) |
\( ( \nu^{5} + 65\nu^{4} - 3223\nu^{3} - 142293\nu^{2} + 2078582\nu + 45053964 ) / 2392 \)
|
| \(\beta_{5}\) | \(=\) |
\( ( -7\nu^{5} + 143\nu^{4} + 16581\nu^{3} - 278287\nu^{2} - 7000324\nu + 70037438 ) / 598 \)
|
| \(\nu\) | \(=\) |
\( \beta_1 \)
|
| \(\nu^{2}\) | \(=\) |
\( \beta_{2} + 4\beta _1 + 931 \)
|
| \(\nu^{3}\) | \(=\) |
\( -\beta_{4} + \beta_{3} + 2\beta_{2} + 1479\beta _1 + 3751 \)
|
| \(\nu^{4}\) | \(=\) |
\( \beta_{5} + 18\beta_{4} + 10\beta_{3} + 2151\beta_{2} + 10689\beta _1 + 1376964 \)
|
| \(\nu^{5}\) | \(=\) |
\( -65\beta_{5} - 2001\beta_{4} + 2573\beta_{3} + 8924\beta_{2} + 2562622\beta _1 + 10007632 \)
|
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 |
|
−41.7693 | 0 | 1232.68 | 625.000 | 0 | 2401.00 | −30102.2 | 0 | −26105.8 | ||||||||||||||||||||||||||||||||||||
| 1.2 | −26.7013 | 0 | 200.962 | 625.000 | 0 | 2401.00 | 8305.13 | 0 | −16688.3 | |||||||||||||||||||||||||||||||||||||
| 1.3 | −7.16942 | 0 | −460.599 | 625.000 | 0 | 2401.00 | 6972.98 | 0 | −4480.89 | |||||||||||||||||||||||||||||||||||||
| 1.4 | 20.5906 | 0 | −88.0274 | 625.000 | 0 | 2401.00 | −12354.9 | 0 | 12869.1 | |||||||||||||||||||||||||||||||||||||
| 1.5 | 26.1181 | 0 | 170.153 | 625.000 | 0 | 2401.00 | −8928.38 | 0 | 16323.8 | |||||||||||||||||||||||||||||||||||||
| 1.6 | 44.9314 | 0 | 1506.83 | 625.000 | 0 | 2401.00 | 44699.4 | 0 | 28082.2 | |||||||||||||||||||||||||||||||||||||
Atkin-Lehner signs
| \( p \) | Sign |
|---|---|
| \(3\) | \( -1 \) |
| \(5\) | \( -1 \) |
| \(7\) | \( -1 \) |
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 | 315.10.a.m | 6 | |
| 3.b | odd | 2 | 1 | 105.10.a.g | ✓ | 6 | |
| By twisted newform orbit | |||||||
|---|---|---|---|---|---|---|---|
| Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
| 105.10.a.g | ✓ | 6 | 3.b | odd | 2 | 1 | |
| 315.10.a.m | 6 | 1.a | even | 1 | 1 | trivial | |
Hecke kernels
This newform subspace can be constructed as the kernel of the linear operator
\( T_{2}^{6} - 16T_{2}^{5} - 2689T_{2}^{4} + 36064T_{2}^{3} + 1674196T_{2}^{2} - 17729920T_{2} - 193212480 \)
acting on \(S_{10}^{\mathrm{new}}(\Gamma_0(315))\).
Hecke characteristic polynomials
| $p$ | $F_p(T)$ |
|---|---|
| $2$ |
\( T^{6} - 16 T^{5} + \cdots - 193212480 \)
|
| $3$ |
\( T^{6} \)
|
| $5$ |
\( (T - 625)^{6} \)
|
| $7$ |
\( (T - 2401)^{6} \)
|
| $11$ |
\( T^{6} + \cdots - 25\!\cdots\!16 \)
|
| $13$ |
\( T^{6} + \cdots - 21\!\cdots\!20 \)
|
| $17$ |
\( T^{6} + \cdots - 14\!\cdots\!96 \)
|
| $19$ |
\( T^{6} + \cdots - 34\!\cdots\!36 \)
|
| $23$ |
\( T^{6} + \cdots - 28\!\cdots\!00 \)
|
| $29$ |
\( T^{6} + \cdots - 14\!\cdots\!16 \)
|
| $31$ |
\( T^{6} + \cdots + 36\!\cdots\!00 \)
|
| $37$ |
\( T^{6} + \cdots + 73\!\cdots\!04 \)
|
| $41$ |
\( T^{6} + \cdots - 51\!\cdots\!56 \)
|
| $43$ |
\( T^{6} + \cdots - 26\!\cdots\!80 \)
|
| $47$ |
\( T^{6} + \cdots - 16\!\cdots\!00 \)
|
| $53$ |
\( T^{6} + \cdots + 36\!\cdots\!64 \)
|
| $59$ |
\( T^{6} + \cdots + 28\!\cdots\!20 \)
|
| $61$ |
\( T^{6} + \cdots + 13\!\cdots\!44 \)
|
| $67$ |
\( T^{6} + \cdots + 17\!\cdots\!56 \)
|
| $71$ |
\( T^{6} + \cdots - 14\!\cdots\!00 \)
|
| $73$ |
\( T^{6} + \cdots + 75\!\cdots\!64 \)
|
| $79$ |
\( T^{6} + \cdots - 10\!\cdots\!44 \)
|
| $83$ |
\( T^{6} + \cdots - 79\!\cdots\!96 \)
|
| $89$ |
\( T^{6} + \cdots - 14\!\cdots\!16 \)
|
| $97$ |
\( T^{6} + \cdots - 19\!\cdots\!44 \)
|
| show more | |
| show less |