Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [480,2,Mod(257,480)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(480, base_ring=CyclotomicField(4))
chi = DirichletCharacter(H, H._module([0, 0, 2, 1]))
N = Newforms(chi, 2, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("480.257");
S:= CuspForms(chi, 2);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 480 = 2^{5} \cdot 3 \cdot 5 \) |
Weight: | \( k \) | \(=\) | \( 2 \) |
Character orbit: | \([\chi]\) | \(=\) | 480.v (of order \(4\), degree \(2\), minimal) |
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: | no |
Analytic conductor: | \(3.83281929702\) |
Analytic rank: | \(0\) |
Dimension: | \(24\) |
Relative dimension: | \(12\) over \(\Q(i)\) |
Twist minimal: | yes |
Sato-Tate group: | $\mathrm{SU}(2)[C_{4}]$ |
$q$-expansion
The dimension is sufficiently large that we do not compute an algebraic \(q\)-expansion, but we have computed the trace expansion.
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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
257.1 | 0 | −1.68734 | − | 0.391016i | 0 | 1.95188 | + | 1.09094i | 0 | 0.246506 | + | 0.246506i | 0 | 2.69421 | + | 1.31955i | 0 | ||||||||||
257.2 | 0 | −1.50010 | − | 0.865855i | 0 | 0.167782 | − | 2.22976i | 0 | 2.51912 | + | 2.51912i | 0 | 1.50059 | + | 2.59774i | 0 | ||||||||||
257.3 | 0 | −1.36007 | + | 1.07247i | 0 | −2.15917 | + | 0.581371i | 0 | −1.61036 | − | 1.61036i | 0 | 0.699602 | − | 2.91729i | 0 | ||||||||||
257.4 | 0 | −1.07247 | + | 1.36007i | 0 | 2.15917 | − | 0.581371i | 0 | −1.61036 | − | 1.61036i | 0 | −0.699602 | − | 2.91729i | 0 | ||||||||||
257.5 | 0 | −0.865855 | − | 1.50010i | 0 | −0.167782 | + | 2.22976i | 0 | −2.51912 | − | 2.51912i | 0 | −1.50059 | + | 2.59774i | 0 | ||||||||||
257.6 | 0 | −0.391016 | − | 1.68734i | 0 | −1.95188 | − | 1.09094i | 0 | −0.246506 | − | 0.246506i | 0 | −2.69421 | + | 1.31955i | 0 | ||||||||||
257.7 | 0 | 0.391016 | + | 1.68734i | 0 | −1.95188 | − | 1.09094i | 0 | 0.246506 | + | 0.246506i | 0 | −2.69421 | + | 1.31955i | 0 | ||||||||||
257.8 | 0 | 0.865855 | + | 1.50010i | 0 | −0.167782 | + | 2.22976i | 0 | 2.51912 | + | 2.51912i | 0 | −1.50059 | + | 2.59774i | 0 | ||||||||||
257.9 | 0 | 1.07247 | − | 1.36007i | 0 | 2.15917 | − | 0.581371i | 0 | 1.61036 | + | 1.61036i | 0 | −0.699602 | − | 2.91729i | 0 | ||||||||||
257.10 | 0 | 1.36007 | − | 1.07247i | 0 | −2.15917 | + | 0.581371i | 0 | 1.61036 | + | 1.61036i | 0 | 0.699602 | − | 2.91729i | 0 | ||||||||||
257.11 | 0 | 1.50010 | + | 0.865855i | 0 | 0.167782 | − | 2.22976i | 0 | −2.51912 | − | 2.51912i | 0 | 1.50059 | + | 2.59774i | 0 | ||||||||||
257.12 | 0 | 1.68734 | + | 0.391016i | 0 | 1.95188 | + | 1.09094i | 0 | −0.246506 | − | 0.246506i | 0 | 2.69421 | + | 1.31955i | 0 | ||||||||||
353.1 | 0 | −1.68734 | + | 0.391016i | 0 | 1.95188 | − | 1.09094i | 0 | 0.246506 | − | 0.246506i | 0 | 2.69421 | − | 1.31955i | 0 | ||||||||||
353.2 | 0 | −1.50010 | + | 0.865855i | 0 | 0.167782 | + | 2.22976i | 0 | 2.51912 | − | 2.51912i | 0 | 1.50059 | − | 2.59774i | 0 | ||||||||||
353.3 | 0 | −1.36007 | − | 1.07247i | 0 | −2.15917 | − | 0.581371i | 0 | −1.61036 | + | 1.61036i | 0 | 0.699602 | + | 2.91729i | 0 | ||||||||||
353.4 | 0 | −1.07247 | − | 1.36007i | 0 | 2.15917 | + | 0.581371i | 0 | −1.61036 | + | 1.61036i | 0 | −0.699602 | + | 2.91729i | 0 | ||||||||||
353.5 | 0 | −0.865855 | + | 1.50010i | 0 | −0.167782 | − | 2.22976i | 0 | −2.51912 | + | 2.51912i | 0 | −1.50059 | − | 2.59774i | 0 | ||||||||||
353.6 | 0 | −0.391016 | + | 1.68734i | 0 | −1.95188 | + | 1.09094i | 0 | −0.246506 | + | 0.246506i | 0 | −2.69421 | − | 1.31955i | 0 | ||||||||||
353.7 | 0 | 0.391016 | − | 1.68734i | 0 | −1.95188 | + | 1.09094i | 0 | 0.246506 | − | 0.246506i | 0 | −2.69421 | − | 1.31955i | 0 | ||||||||||
353.8 | 0 | 0.865855 | − | 1.50010i | 0 | −0.167782 | − | 2.22976i | 0 | 2.51912 | − | 2.51912i | 0 | −1.50059 | − | 2.59774i | 0 | ||||||||||
See all 24 embeddings |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
3.b | odd | 2 | 1 | inner |
4.b | odd | 2 | 1 | inner |
5.c | odd | 4 | 1 | inner |
12.b | even | 2 | 1 | inner |
15.e | even | 4 | 1 | inner |
20.e | even | 4 | 1 | inner |
60.l | odd | 4 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 480.2.v.d | ✓ | 24 |
3.b | odd | 2 | 1 | inner | 480.2.v.d | ✓ | 24 |
4.b | odd | 2 | 1 | inner | 480.2.v.d | ✓ | 24 |
5.c | odd | 4 | 1 | inner | 480.2.v.d | ✓ | 24 |
8.b | even | 2 | 1 | 960.2.v.n | 24 | ||
8.d | odd | 2 | 1 | 960.2.v.n | 24 | ||
12.b | even | 2 | 1 | inner | 480.2.v.d | ✓ | 24 |
15.e | even | 4 | 1 | inner | 480.2.v.d | ✓ | 24 |
20.e | even | 4 | 1 | inner | 480.2.v.d | ✓ | 24 |
24.f | even | 2 | 1 | 960.2.v.n | 24 | ||
24.h | odd | 2 | 1 | 960.2.v.n | 24 | ||
40.i | odd | 4 | 1 | 960.2.v.n | 24 | ||
40.k | even | 4 | 1 | 960.2.v.n | 24 | ||
60.l | odd | 4 | 1 | inner | 480.2.v.d | ✓ | 24 |
120.q | odd | 4 | 1 | 960.2.v.n | 24 | ||
120.w | even | 4 | 1 | 960.2.v.n | 24 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
480.2.v.d | ✓ | 24 | 1.a | even | 1 | 1 | trivial |
480.2.v.d | ✓ | 24 | 3.b | odd | 2 | 1 | inner |
480.2.v.d | ✓ | 24 | 4.b | odd | 2 | 1 | inner |
480.2.v.d | ✓ | 24 | 5.c | odd | 4 | 1 | inner |
480.2.v.d | ✓ | 24 | 12.b | even | 2 | 1 | inner |
480.2.v.d | ✓ | 24 | 15.e | even | 4 | 1 | inner |
480.2.v.d | ✓ | 24 | 20.e | even | 4 | 1 | inner |
480.2.v.d | ✓ | 24 | 60.l | odd | 4 | 1 | inner |
960.2.v.n | 24 | 8.b | even | 2 | 1 | ||
960.2.v.n | 24 | 8.d | odd | 2 | 1 | ||
960.2.v.n | 24 | 24.f | even | 2 | 1 | ||
960.2.v.n | 24 | 24.h | odd | 2 | 1 | ||
960.2.v.n | 24 | 40.i | odd | 4 | 1 | ||
960.2.v.n | 24 | 40.k | even | 4 | 1 | ||
960.2.v.n | 24 | 120.q | odd | 4 | 1 | ||
960.2.v.n | 24 | 120.w | even | 4 | 1 |
Hecke kernels
This newform subspace can be constructed as the kernel of the linear operator \( T_{7}^{12} + 188T_{7}^{8} + 4336T_{7}^{4} + 64 \) acting on \(S_{2}^{\mathrm{new}}(480, [\chi])\).