Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [980,2,Mod(687,980)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(980, base_ring=CyclotomicField(4))
chi = DirichletCharacter(H, H._module([2, 1, 0]))
N = Newforms(chi, 2, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("980.687");
S:= CuspForms(chi, 2);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 980 = 2^{2} \cdot 5 \cdot 7^{2} \) |
Weight: | \( k \) | \(=\) | \( 2 \) |
Character orbit: | \([\chi]\) | \(=\) | 980.k (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: | \(7.82533939809\) |
Analytic rank: | \(0\) |
Dimension: | \(56\) |
Relative dimension: | \(28\) 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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
687.1 | −1.40945 | + | 0.115993i | −2.30756 | − | 2.30756i | 1.97309 | − | 0.326974i | −2.05338 | − | 0.885223i | 3.52006 | + | 2.98473i | 0 | −2.74304 | + | 0.689718i | 7.64971i | 2.99682 | + | 1.00950i | ||||
687.2 | −1.40945 | + | 0.115993i | 2.30756 | + | 2.30756i | 1.97309 | − | 0.326974i | 2.05338 | + | 0.885223i | −3.52006 | − | 2.98473i | 0 | −2.74304 | + | 0.689718i | 7.64971i | −2.99682 | − | 1.00950i | ||||
687.3 | −1.40919 | − | 0.119147i | −0.457835 | − | 0.457835i | 1.97161 | + | 0.335800i | 1.87486 | + | 1.21856i | 0.590624 | + | 0.699723i | 0 | −2.73835 | − | 0.708115i | − | 2.58077i | −2.49685 | − | 1.94056i | |||
687.4 | −1.40919 | − | 0.119147i | 0.457835 | + | 0.457835i | 1.97161 | + | 0.335800i | −1.87486 | − | 1.21856i | −0.590624 | − | 0.699723i | 0 | −2.73835 | − | 0.708115i | − | 2.58077i | 2.49685 | + | 1.94056i | |||
687.5 | −1.35483 | − | 0.405491i | −1.41506 | − | 1.41506i | 1.67115 | + | 1.09875i | 1.52518 | − | 1.63518i | 1.34338 | + | 2.49096i | 0 | −1.81861 | − | 2.16626i | 1.00477i | −2.72942 | + | 1.59696i | ||||
687.6 | −1.35483 | − | 0.405491i | 1.41506 | + | 1.41506i | 1.67115 | + | 1.09875i | −1.52518 | + | 1.63518i | −1.34338 | − | 2.49096i | 0 | −1.81861 | − | 2.16626i | 1.00477i | 2.72942 | − | 1.59696i | ||||
687.7 | −1.04231 | + | 0.955823i | −0.609124 | − | 0.609124i | 0.172803 | − | 1.99252i | 1.66096 | − | 1.49706i | 1.21711 | + | 0.0526786i | 0 | 1.72438 | + | 2.24199i | − | 2.25794i | −0.300304 | + | 3.14799i | |||
687.8 | −1.04231 | + | 0.955823i | 0.609124 | + | 0.609124i | 0.172803 | − | 1.99252i | −1.66096 | + | 1.49706i | −1.21711 | − | 0.0526786i | 0 | 1.72438 | + | 2.24199i | − | 2.25794i | 0.300304 | − | 3.14799i | |||
687.9 | −0.839356 | + | 1.13819i | −2.01474 | − | 2.01474i | −0.590963 | − | 1.91070i | −1.27678 | − | 1.83571i | 3.98424 | − | 0.602077i | 0 | 2.67077 | + | 0.931125i | 5.11832i | 3.16106 | + | 0.0875860i | ||||
687.10 | −0.839356 | + | 1.13819i | 2.01474 | + | 2.01474i | −0.590963 | − | 1.91070i | 1.27678 | + | 1.83571i | −3.98424 | + | 0.602077i | 0 | 2.67077 | + | 0.931125i | 5.11832i | −3.16106 | − | 0.0875860i | ||||
687.11 | −0.405491 | − | 1.35483i | −1.41506 | − | 1.41506i | −1.67115 | + | 1.09875i | −1.52518 | + | 1.63518i | −1.34338 | + | 2.49096i | 0 | 2.16626 | + | 1.81861i | 1.00477i | 2.83385 | + | 1.40332i | ||||
687.12 | −0.405491 | − | 1.35483i | 1.41506 | + | 1.41506i | −1.67115 | + | 1.09875i | 1.52518 | − | 1.63518i | 1.34338 | − | 2.49096i | 0 | 2.16626 | + | 1.81861i | 1.00477i | −2.83385 | − | 1.40332i | ||||
687.13 | −0.119147 | − | 1.40919i | −0.457835 | − | 0.457835i | −1.97161 | + | 0.335800i | −1.87486 | − | 1.21856i | −0.590624 | + | 0.699723i | 0 | 0.708115 | + | 2.73835i | − | 2.58077i | −1.49379 | + | 2.78722i | |||
687.14 | −0.119147 | − | 1.40919i | 0.457835 | + | 0.457835i | −1.97161 | + | 0.335800i | 1.87486 | + | 1.21856i | 0.590624 | − | 0.699723i | 0 | 0.708115 | + | 2.73835i | − | 2.58077i | 1.49379 | − | 2.78722i | |||
687.15 | 0.0280367 | + | 1.41394i | −1.18903 | − | 1.18903i | −1.99843 | + | 0.0792841i | 1.08275 | + | 1.95644i | 1.64787 | − | 1.71455i | 0 | −0.168132 | − | 2.82343i | − | 0.172420i | −2.73592 | + | 1.58579i | |||
687.16 | 0.0280367 | + | 1.41394i | 1.18903 | + | 1.18903i | −1.99843 | + | 0.0792841i | −1.08275 | − | 1.95644i | −1.64787 | + | 1.71455i | 0 | −0.168132 | − | 2.82343i | − | 0.172420i | 2.73592 | − | 1.58579i | |||
687.17 | 0.115993 | − | 1.40945i | −2.30756 | − | 2.30756i | −1.97309 | − | 0.326974i | 2.05338 | + | 0.885223i | −3.52006 | + | 2.98473i | 0 | −0.689718 | + | 2.74304i | 7.64971i | 1.48585 | − | 2.79146i | ||||
687.18 | 0.115993 | − | 1.40945i | 2.30756 | + | 2.30756i | −1.97309 | − | 0.326974i | −2.05338 | − | 0.885223i | 3.52006 | − | 2.98473i | 0 | −0.689718 | + | 2.74304i | 7.64971i | −1.48585 | + | 2.79146i | ||||
687.19 | 0.697605 | + | 1.23018i | −1.76612 | − | 1.76612i | −1.02669 | + | 1.71636i | 1.97002 | − | 1.05783i | 0.940592 | − | 3.40469i | 0 | −2.82766 | − | 0.0656787i | 3.23833i | 2.67562 | + | 1.68554i | ||||
687.20 | 0.697605 | + | 1.23018i | 1.76612 | + | 1.76612i | −1.02669 | + | 1.71636i | −1.97002 | + | 1.05783i | −0.940592 | + | 3.40469i | 0 | −2.82766 | − | 0.0656787i | 3.23833i | −2.67562 | − | 1.68554i | ||||
See all 56 embeddings |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
4.b | odd | 2 | 1 | inner |
5.c | odd | 4 | 1 | inner |
7.b | odd | 2 | 1 | inner |
20.e | even | 4 | 1 | inner |
28.d | even | 2 | 1 | inner |
35.f | even | 4 | 1 | inner |
140.j | odd | 4 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 980.2.k.m | ✓ | 56 |
4.b | odd | 2 | 1 | inner | 980.2.k.m | ✓ | 56 |
5.c | odd | 4 | 1 | inner | 980.2.k.m | ✓ | 56 |
7.b | odd | 2 | 1 | inner | 980.2.k.m | ✓ | 56 |
7.c | even | 3 | 2 | 980.2.x.n | 112 | ||
7.d | odd | 6 | 2 | 980.2.x.n | 112 | ||
20.e | even | 4 | 1 | inner | 980.2.k.m | ✓ | 56 |
28.d | even | 2 | 1 | inner | 980.2.k.m | ✓ | 56 |
28.f | even | 6 | 2 | 980.2.x.n | 112 | ||
28.g | odd | 6 | 2 | 980.2.x.n | 112 | ||
35.f | even | 4 | 1 | inner | 980.2.k.m | ✓ | 56 |
35.k | even | 12 | 2 | 980.2.x.n | 112 | ||
35.l | odd | 12 | 2 | 980.2.x.n | 112 | ||
140.j | odd | 4 | 1 | inner | 980.2.k.m | ✓ | 56 |
140.w | even | 12 | 2 | 980.2.x.n | 112 | ||
140.x | odd | 12 | 2 | 980.2.x.n | 112 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
980.2.k.m | ✓ | 56 | 1.a | even | 1 | 1 | trivial |
980.2.k.m | ✓ | 56 | 4.b | odd | 2 | 1 | inner |
980.2.k.m | ✓ | 56 | 5.c | odd | 4 | 1 | inner |
980.2.k.m | ✓ | 56 | 7.b | odd | 2 | 1 | inner |
980.2.k.m | ✓ | 56 | 20.e | even | 4 | 1 | inner |
980.2.k.m | ✓ | 56 | 28.d | even | 2 | 1 | inner |
980.2.k.m | ✓ | 56 | 35.f | even | 4 | 1 | inner |
980.2.k.m | ✓ | 56 | 140.j | odd | 4 | 1 | inner |
980.2.x.n | 112 | 7.c | even | 3 | 2 | ||
980.2.x.n | 112 | 7.d | odd | 6 | 2 | ||
980.2.x.n | 112 | 28.f | even | 6 | 2 | ||
980.2.x.n | 112 | 28.g | odd | 6 | 2 | ||
980.2.x.n | 112 | 35.k | even | 12 | 2 | ||
980.2.x.n | 112 | 35.l | odd | 12 | 2 | ||
980.2.x.n | 112 | 140.w | even | 12 | 2 | ||
980.2.x.n | 112 | 140.x | odd | 12 | 2 |
Hecke kernels
This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(980, [\chi])\):
\( T_{3}^{28} + 243 T_{3}^{24} + 20003 T_{3}^{20} + 680681 T_{3}^{16} + 9330592 T_{3}^{12} + 43791144 T_{3}^{8} + \cdots + 3610000 \) |
\( T_{13}^{28} + 2603 T_{13}^{24} + 1014243 T_{13}^{20} + 152453185 T_{13}^{16} + 9828930928 T_{13}^{12} + \cdots + 3321506250000 \) |