Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [1344,2,Mod(239,1344)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(1344, base_ring=CyclotomicField(4))
chi = DirichletCharacter(H, H._module([2, 3, 2, 0]))
N = Newforms(chi, 2, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("1344.239");
S:= CuspForms(chi, 2);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 1344 = 2^{6} \cdot 3 \cdot 7 \) |
Weight: | \( k \) | \(=\) | \( 2 \) |
Character orbit: | \([\chi]\) | \(=\) | 1344.s (of order \(4\), degree \(2\), not 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: | \(10.7318940317\) |
Analytic rank: | \(0\) |
Dimension: | \(48\) |
Relative dimension: | \(24\) over \(\Q(i)\) |
Twist minimal: | no (minimal twist has level 336) |
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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
239.1 | 0 | −1.71763 | − | 0.223071i | 0 | −2.27022 | − | 2.27022i | 0 | −1.00000 | 0 | 2.90048 | + | 0.766304i | 0 | ||||||||||||
239.2 | 0 | −1.66117 | + | 0.490427i | 0 | 2.27018 | + | 2.27018i | 0 | −1.00000 | 0 | 2.51896 | − | 1.62936i | 0 | ||||||||||||
239.3 | 0 | −1.62672 | + | 0.594785i | 0 | −0.0563417 | − | 0.0563417i | 0 | −1.00000 | 0 | 2.29246 | − | 1.93510i | 0 | ||||||||||||
239.4 | 0 | −1.45100 | − | 0.945839i | 0 | 1.69539 | + | 1.69539i | 0 | −1.00000 | 0 | 1.21078 | + | 2.74482i | 0 | ||||||||||||
239.5 | 0 | −1.34538 | − | 1.09085i | 0 | −1.07379 | − | 1.07379i | 0 | −1.00000 | 0 | 0.620087 | + | 2.93522i | 0 | ||||||||||||
239.6 | 0 | −1.29441 | − | 1.15087i | 0 | 0.186466 | + | 0.186466i | 0 | −1.00000 | 0 | 0.350987 | + | 2.97940i | 0 | ||||||||||||
239.7 | 0 | −1.26449 | + | 1.18367i | 0 | 1.97913 | + | 1.97913i | 0 | −1.00000 | 0 | 0.197870 | − | 2.99347i | 0 | ||||||||||||
239.8 | 0 | −1.18367 | + | 1.26449i | 0 | −1.97913 | − | 1.97913i | 0 | −1.00000 | 0 | −0.197870 | − | 2.99347i | 0 | ||||||||||||
239.9 | 0 | −0.594785 | + | 1.62672i | 0 | 0.0563417 | + | 0.0563417i | 0 | −1.00000 | 0 | −2.29246 | − | 1.93510i | 0 | ||||||||||||
239.10 | 0 | −0.490427 | + | 1.66117i | 0 | −2.27018 | − | 2.27018i | 0 | −1.00000 | 0 | −2.51896 | − | 1.62936i | 0 | ||||||||||||
239.11 | 0 | −0.399703 | − | 1.68530i | 0 | 2.09830 | + | 2.09830i | 0 | −1.00000 | 0 | −2.68048 | + | 1.34724i | 0 | ||||||||||||
239.12 | 0 | −0.277087 | − | 1.70974i | 0 | 0.459458 | + | 0.459458i | 0 | −1.00000 | 0 | −2.84645 | + | 0.947494i | 0 | ||||||||||||
239.13 | 0 | 0.223071 | + | 1.71763i | 0 | 2.27022 | + | 2.27022i | 0 | −1.00000 | 0 | −2.90048 | + | 0.766304i | 0 | ||||||||||||
239.14 | 0 | 0.262630 | − | 1.71202i | 0 | −2.76208 | − | 2.76208i | 0 | −1.00000 | 0 | −2.86205 | − | 0.899256i | 0 | ||||||||||||
239.15 | 0 | 0.505560 | − | 1.65663i | 0 | −2.00763 | − | 2.00763i | 0 | −1.00000 | 0 | −2.48882 | − | 1.67505i | 0 | ||||||||||||
239.16 | 0 | 0.861124 | − | 1.50282i | 0 | 1.19856 | + | 1.19856i | 0 | −1.00000 | 0 | −1.51693 | − | 2.58823i | 0 | ||||||||||||
239.17 | 0 | 0.945839 | + | 1.45100i | 0 | −1.69539 | − | 1.69539i | 0 | −1.00000 | 0 | −1.21078 | + | 2.74482i | 0 | ||||||||||||
239.18 | 0 | 1.09085 | + | 1.34538i | 0 | 1.07379 | + | 1.07379i | 0 | −1.00000 | 0 | −0.620087 | + | 2.93522i | 0 | ||||||||||||
239.19 | 0 | 1.15087 | + | 1.29441i | 0 | −0.186466 | − | 0.186466i | 0 | −1.00000 | 0 | −0.350987 | + | 2.97940i | 0 | ||||||||||||
239.20 | 0 | 1.50282 | − | 0.861124i | 0 | −1.19856 | − | 1.19856i | 0 | −1.00000 | 0 | 1.51693 | − | 2.58823i | 0 | ||||||||||||
See all 48 embeddings |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
3.b | odd | 2 | 1 | inner |
16.f | odd | 4 | 1 | inner |
48.k | even | 4 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 1344.2.s.d | 48 | |
3.b | odd | 2 | 1 | inner | 1344.2.s.d | 48 | |
4.b | odd | 2 | 1 | 336.2.s.d | ✓ | 48 | |
12.b | even | 2 | 1 | 336.2.s.d | ✓ | 48 | |
16.e | even | 4 | 1 | 336.2.s.d | ✓ | 48 | |
16.f | odd | 4 | 1 | inner | 1344.2.s.d | 48 | |
48.i | odd | 4 | 1 | 336.2.s.d | ✓ | 48 | |
48.k | even | 4 | 1 | inner | 1344.2.s.d | 48 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
336.2.s.d | ✓ | 48 | 4.b | odd | 2 | 1 | |
336.2.s.d | ✓ | 48 | 12.b | even | 2 | 1 | |
336.2.s.d | ✓ | 48 | 16.e | even | 4 | 1 | |
336.2.s.d | ✓ | 48 | 48.i | odd | 4 | 1 | |
1344.2.s.d | 48 | 1.a | even | 1 | 1 | trivial | |
1344.2.s.d | 48 | 3.b | odd | 2 | 1 | inner | |
1344.2.s.d | 48 | 16.f | odd | 4 | 1 | inner | |
1344.2.s.d | 48 | 48.k | even | 4 | 1 | inner |
Hecke kernels
This newform subspace can be constructed as the kernel of the linear operator \( T_{5}^{48} + 696 T_{5}^{44} + 196224 T_{5}^{40} + 29529376 T_{5}^{36} + 2599544544 T_{5}^{32} + \cdots + 40960000 \) acting on \(S_{2}^{\mathrm{new}}(1344, [\chi])\).