Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [980,2,Mod(139,980)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(980, base_ring=CyclotomicField(14))
chi = DirichletCharacter(H, H._module([7, 7, 5]))
N = Newforms(chi, 2, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("980.139");
S:= CuspForms(chi, 2);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 980 = 2^{2} \cdot 5 \cdot 7^{2} \) |
Weight: | \( k \) | \(=\) | \( 2 \) |
Character orbit: | \([\chi]\) | \(=\) | 980.bf (of order \(14\), degree \(6\), 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: | \(24\) |
Relative dimension: | \(4\) over \(\Q(\zeta_{14})\) |
Twist minimal: | yes |
Sato-Tate group: | $\mathrm{U}(1)[D_{14}]$ |
$q$-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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
139.1 | −0.881748 | − | 1.10568i | −0.969951 | − | 2.01412i | −0.445042 | + | 1.94986i | 0.970194 | + | 2.01463i | −1.37172 | + | 2.84840i | −2.01353 | + | 1.71630i | 2.54832 | − | 1.22721i | −1.24542 | + | 1.56171i | 1.37206 | − | 2.84911i |
139.2 | −0.881748 | − | 1.10568i | 1.50242 | + | 3.11980i | −0.445042 | + | 1.94986i | −0.970194 | − | 2.01463i | 2.12474 | − | 4.41207i | 1.06946 | + | 2.41997i | 2.54832 | − | 1.22721i | −5.60543 | + | 7.02899i | −1.37206 | + | 2.84911i |
139.3 | 0.881748 | + | 1.10568i | −1.50242 | − | 3.11980i | −0.445042 | + | 1.94986i | −0.970194 | − | 2.01463i | 2.12474 | − | 4.41207i | −1.06946 | − | 2.41997i | −2.54832 | + | 1.22721i | −5.60543 | + | 7.02899i | 1.37206 | − | 2.84911i |
139.4 | 0.881748 | + | 1.10568i | 0.969951 | + | 2.01412i | −0.445042 | + | 1.94986i | 0.970194 | + | 2.01463i | −1.37172 | + | 2.84840i | 2.01353 | − | 1.71630i | −2.54832 | + | 1.22721i | −1.24542 | + | 1.56171i | −1.37206 | + | 2.84911i |
279.1 | −0.314692 | + | 1.37876i | −2.40595 | − | 1.91868i | −1.80194 | − | 0.867767i | 1.74823 | + | 1.39417i | 3.40253 | − | 2.71342i | 2.59727 | − | 0.504150i | 1.76350 | − | 2.21135i | 1.43969 | + | 6.30771i | −2.47237 | + | 1.97165i |
279.2 | −0.314692 | + | 1.37876i | 0.677044 | + | 0.539924i | −1.80194 | − | 0.867767i | −1.74823 | − | 1.39417i | −0.957484 | + | 0.763568i | 1.22521 | + | 2.34496i | 1.76350 | − | 2.21135i | −0.500693 | − | 2.19368i | 2.47237 | − | 1.97165i |
279.3 | 0.314692 | − | 1.37876i | −0.677044 | − | 0.539924i | −1.80194 | − | 0.867767i | −1.74823 | − | 1.39417i | −0.957484 | + | 0.763568i | −1.22521 | − | 2.34496i | −1.76350 | + | 2.21135i | −0.500693 | − | 2.19368i | −2.47237 | + | 1.97165i |
279.4 | 0.314692 | − | 1.37876i | 2.40595 | + | 1.91868i | −1.80194 | − | 0.867767i | 1.74823 | + | 1.39417i | 3.40253 | − | 2.71342i | −2.59727 | + | 0.504150i | −1.76350 | + | 2.21135i | 1.43969 | + | 6.30771i | 2.47237 | − | 1.97165i |
419.1 | −1.27416 | + | 0.613604i | −2.03022 | − | 0.463384i | 1.24698 | − | 1.56366i | −2.18001 | − | 0.497572i | 2.87116 | − | 0.655324i | −0.0864375 | + | 2.64434i | −0.629384 | + | 2.75751i | 1.20416 | + | 0.579891i | 3.08299 | − | 0.703673i |
419.2 | −1.27416 | + | 0.613604i | −0.658158 | − | 0.150220i | 1.24698 | − | 1.56366i | 2.18001 | + | 0.497572i | 0.930775 | − | 0.212443i | −2.55881 | + | 0.672691i | −0.629384 | + | 2.75751i | −2.29230 | − | 1.10391i | −3.08299 | + | 0.703673i |
419.3 | 1.27416 | − | 0.613604i | 0.658158 | + | 0.150220i | 1.24698 | − | 1.56366i | 2.18001 | + | 0.497572i | 0.930775 | − | 0.212443i | 2.55881 | − | 0.672691i | 0.629384 | − | 2.75751i | −2.29230 | − | 1.10391i | 3.08299 | − | 0.703673i |
419.4 | 1.27416 | − | 0.613604i | 2.03022 | + | 0.463384i | 1.24698 | − | 1.56366i | −2.18001 | − | 0.497572i | 2.87116 | − | 0.655324i | 0.0864375 | − | 2.64434i | 0.629384 | − | 2.75751i | 1.20416 | + | 0.579891i | −3.08299 | + | 0.703673i |
559.1 | −1.27416 | − | 0.613604i | −2.03022 | + | 0.463384i | 1.24698 | + | 1.56366i | −2.18001 | + | 0.497572i | 2.87116 | + | 0.655324i | −0.0864375 | − | 2.64434i | −0.629384 | − | 2.75751i | 1.20416 | − | 0.579891i | 3.08299 | + | 0.703673i |
559.2 | −1.27416 | − | 0.613604i | −0.658158 | + | 0.150220i | 1.24698 | + | 1.56366i | 2.18001 | − | 0.497572i | 0.930775 | + | 0.212443i | −2.55881 | − | 0.672691i | −0.629384 | − | 2.75751i | −2.29230 | + | 1.10391i | −3.08299 | − | 0.703673i |
559.3 | 1.27416 | + | 0.613604i | 0.658158 | − | 0.150220i | 1.24698 | + | 1.56366i | 2.18001 | − | 0.497572i | 0.930775 | + | 0.212443i | 2.55881 | + | 0.672691i | 0.629384 | + | 2.75751i | −2.29230 | + | 1.10391i | 3.08299 | + | 0.703673i |
559.4 | 1.27416 | + | 0.613604i | 2.03022 | − | 0.463384i | 1.24698 | + | 1.56366i | −2.18001 | + | 0.497572i | 2.87116 | + | 0.655324i | 0.0864375 | + | 2.64434i | 0.629384 | + | 2.75751i | 1.20416 | − | 0.579891i | −3.08299 | − | 0.703673i |
699.1 | −0.314692 | − | 1.37876i | −2.40595 | + | 1.91868i | −1.80194 | + | 0.867767i | 1.74823 | − | 1.39417i | 3.40253 | + | 2.71342i | 2.59727 | + | 0.504150i | 1.76350 | + | 2.21135i | 1.43969 | − | 6.30771i | −2.47237 | − | 1.97165i |
699.2 | −0.314692 | − | 1.37876i | 0.677044 | − | 0.539924i | −1.80194 | + | 0.867767i | −1.74823 | + | 1.39417i | −0.957484 | − | 0.763568i | 1.22521 | − | 2.34496i | 1.76350 | + | 2.21135i | −0.500693 | + | 2.19368i | 2.47237 | + | 1.97165i |
699.3 | 0.314692 | + | 1.37876i | −0.677044 | + | 0.539924i | −1.80194 | + | 0.867767i | −1.74823 | + | 1.39417i | −0.957484 | − | 0.763568i | −1.22521 | + | 2.34496i | −1.76350 | − | 2.21135i | −0.500693 | + | 2.19368i | −2.47237 | − | 1.97165i |
699.4 | 0.314692 | + | 1.37876i | 2.40595 | − | 1.91868i | −1.80194 | + | 0.867767i | 1.74823 | − | 1.39417i | 3.40253 | + | 2.71342i | −2.59727 | − | 0.504150i | −1.76350 | − | 2.21135i | 1.43969 | − | 6.30771i | 2.47237 | + | 1.97165i |
See all 24 embeddings |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
20.d | odd | 2 | 1 | CM by \(\Q(\sqrt{-5}) \) |
4.b | odd | 2 | 1 | inner |
5.b | even | 2 | 1 | inner |
49.f | odd | 14 | 1 | inner |
196.j | even | 14 | 1 | inner |
245.o | odd | 14 | 1 | inner |
980.bf | even | 14 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 980.2.bf.a | ✓ | 24 |
4.b | odd | 2 | 1 | inner | 980.2.bf.a | ✓ | 24 |
5.b | even | 2 | 1 | inner | 980.2.bf.a | ✓ | 24 |
20.d | odd | 2 | 1 | CM | 980.2.bf.a | ✓ | 24 |
49.f | odd | 14 | 1 | inner | 980.2.bf.a | ✓ | 24 |
196.j | even | 14 | 1 | inner | 980.2.bf.a | ✓ | 24 |
245.o | odd | 14 | 1 | inner | 980.2.bf.a | ✓ | 24 |
980.bf | even | 14 | 1 | inner | 980.2.bf.a | ✓ | 24 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
980.2.bf.a | ✓ | 24 | 1.a | even | 1 | 1 | trivial |
980.2.bf.a | ✓ | 24 | 4.b | odd | 2 | 1 | inner |
980.2.bf.a | ✓ | 24 | 5.b | even | 2 | 1 | inner |
980.2.bf.a | ✓ | 24 | 20.d | odd | 2 | 1 | CM |
980.2.bf.a | ✓ | 24 | 49.f | odd | 14 | 1 | inner |
980.2.bf.a | ✓ | 24 | 196.j | even | 14 | 1 | inner |
980.2.bf.a | ✓ | 24 | 245.o | odd | 14 | 1 | inner |
980.2.bf.a | ✓ | 24 | 980.bf | even | 14 | 1 | inner |
Hecke kernels
This newform subspace can be constructed as the kernel of the linear operator \( T_{3}^{24} + 8 T_{3}^{22} + 139 T_{3}^{20} + 172 T_{3}^{18} + 10289 T_{3}^{16} - 44144 T_{3}^{14} + \cdots + 707281 \) acting on \(S_{2}^{\mathrm{new}}(980, [\chi])\).