Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [1680,2,Mod(97,1680)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(1680, base_ring=CyclotomicField(4))
chi = DirichletCharacter(H, H._module([0, 0, 0, 1, 2]))
N = Newforms(chi, 2, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("1680.97");
S:= CuspForms(chi, 2);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 1680 = 2^{4} \cdot 3 \cdot 5 \cdot 7 \) |
Weight: | \( k \) | \(=\) | \( 2 \) |
Character orbit: | \([\chi]\) | \(=\) | 1680.cz (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: | \(13.4148675396\) |
Analytic rank: | \(0\) |
Dimension: | \(24\) |
Relative dimension: | \(12\) over \(\Q(i)\) |
Twist minimal: | no (minimal twist has level 840) |
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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
97.1 | 0 | −0.707107 | − | 0.707107i | 0 | 1.35806 | − | 1.77642i | 0 | −2.59845 | + | 0.498068i | 0 | 1.00000i | 0 | ||||||||||||
97.2 | 0 | −0.707107 | − | 0.707107i | 0 | 1.98667 | + | 1.02624i | 0 | 0.630291 | + | 2.56958i | 0 | 1.00000i | 0 | ||||||||||||
97.3 | 0 | −0.707107 | − | 0.707107i | 0 | −2.17640 | + | 0.513127i | 0 | −0.659108 | + | 2.56234i | 0 | 1.00000i | 0 | ||||||||||||
97.4 | 0 | −0.707107 | − | 0.707107i | 0 | −1.75776 | − | 1.38213i | 0 | −1.69778 | − | 2.02918i | 0 | 1.00000i | 0 | ||||||||||||
97.5 | 0 | −0.707107 | − | 0.707107i | 0 | 0.793022 | + | 2.09072i | 0 | 1.13687 | − | 2.38904i | 0 | 1.00000i | 0 | ||||||||||||
97.6 | 0 | −0.707107 | − | 0.707107i | 0 | 0.503511 | − | 2.17864i | 0 | 2.48106 | − | 0.918874i | 0 | 1.00000i | 0 | ||||||||||||
97.7 | 0 | 0.707107 | + | 0.707107i | 0 | 0.0188126 | − | 2.23599i | 0 | 1.30388 | + | 2.30215i | 0 | 1.00000i | 0 | ||||||||||||
97.8 | 0 | 0.707107 | + | 0.707107i | 0 | −0.600524 | − | 2.15392i | 0 | 0.367100 | − | 2.62016i | 0 | 1.00000i | 0 | ||||||||||||
97.9 | 0 | 0.707107 | + | 0.707107i | 0 | 1.43773 | + | 1.71258i | 0 | −1.41433 | + | 2.23600i | 0 | 1.00000i | 0 | ||||||||||||
97.10 | 0 | 0.707107 | + | 0.707107i | 0 | −2.21371 | + | 0.315413i | 0 | −2.54973 | − | 0.706295i | 0 | 1.00000i | 0 | ||||||||||||
97.11 | 0 | 0.707107 | + | 0.707107i | 0 | −1.54016 | + | 1.62109i | 0 | 1.14733 | + | 2.38404i | 0 | 1.00000i | 0 | ||||||||||||
97.12 | 0 | 0.707107 | + | 0.707107i | 0 | 2.19074 | + | 0.447937i | 0 | 1.85286 | − | 1.88862i | 0 | 1.00000i | 0 | ||||||||||||
433.1 | 0 | −0.707107 | + | 0.707107i | 0 | 1.35806 | + | 1.77642i | 0 | −2.59845 | − | 0.498068i | 0 | − | 1.00000i | 0 | |||||||||||
433.2 | 0 | −0.707107 | + | 0.707107i | 0 | 1.98667 | − | 1.02624i | 0 | 0.630291 | − | 2.56958i | 0 | − | 1.00000i | 0 | |||||||||||
433.3 | 0 | −0.707107 | + | 0.707107i | 0 | −2.17640 | − | 0.513127i | 0 | −0.659108 | − | 2.56234i | 0 | − | 1.00000i | 0 | |||||||||||
433.4 | 0 | −0.707107 | + | 0.707107i | 0 | −1.75776 | + | 1.38213i | 0 | −1.69778 | + | 2.02918i | 0 | − | 1.00000i | 0 | |||||||||||
433.5 | 0 | −0.707107 | + | 0.707107i | 0 | 0.793022 | − | 2.09072i | 0 | 1.13687 | + | 2.38904i | 0 | − | 1.00000i | 0 | |||||||||||
433.6 | 0 | −0.707107 | + | 0.707107i | 0 | 0.503511 | + | 2.17864i | 0 | 2.48106 | + | 0.918874i | 0 | − | 1.00000i | 0 | |||||||||||
433.7 | 0 | 0.707107 | − | 0.707107i | 0 | 0.0188126 | + | 2.23599i | 0 | 1.30388 | − | 2.30215i | 0 | − | 1.00000i | 0 | |||||||||||
433.8 | 0 | 0.707107 | − | 0.707107i | 0 | −0.600524 | + | 2.15392i | 0 | 0.367100 | + | 2.62016i | 0 | − | 1.00000i | 0 | |||||||||||
See all 24 embeddings |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
35.f | even | 4 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 1680.2.cz.e | 24 | |
4.b | odd | 2 | 1 | 840.2.bt.b | yes | 24 | |
5.c | odd | 4 | 1 | 1680.2.cz.f | 24 | ||
7.b | odd | 2 | 1 | 1680.2.cz.f | 24 | ||
20.e | even | 4 | 1 | 840.2.bt.a | ✓ | 24 | |
28.d | even | 2 | 1 | 840.2.bt.a | ✓ | 24 | |
35.f | even | 4 | 1 | inner | 1680.2.cz.e | 24 | |
140.j | odd | 4 | 1 | 840.2.bt.b | yes | 24 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
840.2.bt.a | ✓ | 24 | 20.e | even | 4 | 1 | |
840.2.bt.a | ✓ | 24 | 28.d | even | 2 | 1 | |
840.2.bt.b | yes | 24 | 4.b | odd | 2 | 1 | |
840.2.bt.b | yes | 24 | 140.j | odd | 4 | 1 | |
1680.2.cz.e | 24 | 1.a | even | 1 | 1 | trivial | |
1680.2.cz.e | 24 | 35.f | even | 4 | 1 | inner | |
1680.2.cz.f | 24 | 5.c | odd | 4 | 1 | ||
1680.2.cz.f | 24 | 7.b | odd | 2 | 1 |
Hecke kernels
This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(1680, [\chi])\):
\( T_{11}^{12} - 4 T_{11}^{11} - 56 T_{11}^{10} + 184 T_{11}^{9} + 1172 T_{11}^{8} - 2720 T_{11}^{7} + \cdots + 38848 \) |
\( T_{13}^{24} + 16 T_{13}^{23} + 128 T_{13}^{22} + 544 T_{13}^{21} + 3456 T_{13}^{20} + 34688 T_{13}^{19} + \cdots + 2316304384 \) |