Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [756,2,Mod(323,756)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(756, base_ring=CyclotomicField(2))
chi = DirichletCharacter(H, H._module([1, 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("756.323");
S:= CuspForms(chi, 2);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 756 = 2^{2} \cdot 3^{3} \cdot 7 \) |
Weight: | \( k \) | \(=\) | \( 2 \) |
Character orbit: | \([\chi]\) | \(=\) | 756.e (of order \(2\), degree \(1\), 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: | \(6.03669039281\) |
Analytic rank: | \(0\) |
Dimension: | \(24\) |
Twist minimal: | yes |
Sato-Tate group: | $\mathrm{SU}(2)[C_{2}]$ |
$q$-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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
323.1 | −1.40500 | − | 0.161188i | 0 | 1.94804 | + | 0.452937i | − | 4.14952i | 0 | − | 1.00000i | −2.66398 | − | 0.950375i | 0 | −0.668852 | + | 5.83006i | ||||||||
323.2 | −1.40500 | + | 0.161188i | 0 | 1.94804 | − | 0.452937i | 4.14952i | 0 | 1.00000i | −2.66398 | + | 0.950375i | 0 | −0.668852 | − | 5.83006i | ||||||||||
323.3 | −1.38801 | − | 0.270968i | 0 | 1.85315 | + | 0.752213i | − | 1.41649i | 0 | 1.00000i | −2.36837 | − | 1.54622i | 0 | −0.383823 | + | 1.96611i | |||||||||
323.4 | −1.38801 | + | 0.270968i | 0 | 1.85315 | − | 0.752213i | 1.41649i | 0 | − | 1.00000i | −2.36837 | + | 1.54622i | 0 | −0.383823 | − | 1.96611i | |||||||||
323.5 | −1.21808 | − | 0.718530i | 0 | 0.967429 | + | 1.75045i | 1.77738i | 0 | − | 1.00000i | 0.0793484 | − | 2.82731i | 0 | 1.27710 | − | 2.16499i | |||||||||
323.6 | −1.21808 | + | 0.718530i | 0 | 0.967429 | − | 1.75045i | − | 1.77738i | 0 | 1.00000i | 0.0793484 | + | 2.82731i | 0 | 1.27710 | + | 2.16499i | |||||||||
323.7 | −0.932512 | − | 1.06321i | 0 | −0.260844 | + | 1.98292i | − | 0.546170i | 0 | 1.00000i | 2.35150 | − | 1.57176i | 0 | −0.580695 | + | 0.509310i | |||||||||
323.8 | −0.932512 | + | 1.06321i | 0 | −0.260844 | − | 1.98292i | 0.546170i | 0 | − | 1.00000i | 2.35150 | + | 1.57176i | 0 | −0.580695 | − | 0.509310i | |||||||||
323.9 | −0.492782 | − | 1.32558i | 0 | −1.51433 | + | 1.30645i | 3.62883i | 0 | 1.00000i | 2.47803 | + | 1.36358i | 0 | 4.81031 | − | 1.78822i | ||||||||||
323.10 | −0.492782 | + | 1.32558i | 0 | −1.51433 | − | 1.30645i | − | 3.62883i | 0 | − | 1.00000i | 2.47803 | − | 1.36358i | 0 | 4.81031 | + | 1.78822i | ||||||||
323.11 | −0.0572568 | − | 1.41305i | 0 | −1.99344 | + | 0.161814i | 0.386370i | 0 | 1.00000i | 0.342790 | + | 2.80758i | 0 | 0.545962 | − | 0.0221223i | ||||||||||
323.12 | −0.0572568 | + | 1.41305i | 0 | −1.99344 | − | 0.161814i | − | 0.386370i | 0 | − | 1.00000i | 0.342790 | − | 2.80758i | 0 | 0.545962 | + | 0.0221223i | ||||||||
323.13 | 0.0572568 | − | 1.41305i | 0 | −1.99344 | − | 0.161814i | 0.386370i | 0 | − | 1.00000i | −0.342790 | + | 2.80758i | 0 | 0.545962 | + | 0.0221223i | |||||||||
323.14 | 0.0572568 | + | 1.41305i | 0 | −1.99344 | + | 0.161814i | − | 0.386370i | 0 | 1.00000i | −0.342790 | − | 2.80758i | 0 | 0.545962 | − | 0.0221223i | |||||||||
323.15 | 0.492782 | − | 1.32558i | 0 | −1.51433 | − | 1.30645i | 3.62883i | 0 | − | 1.00000i | −2.47803 | + | 1.36358i | 0 | 4.81031 | + | 1.78822i | |||||||||
323.16 | 0.492782 | + | 1.32558i | 0 | −1.51433 | + | 1.30645i | − | 3.62883i | 0 | 1.00000i | −2.47803 | − | 1.36358i | 0 | 4.81031 | − | 1.78822i | |||||||||
323.17 | 0.932512 | − | 1.06321i | 0 | −0.260844 | − | 1.98292i | − | 0.546170i | 0 | − | 1.00000i | −2.35150 | − | 1.57176i | 0 | −0.580695 | − | 0.509310i | ||||||||
323.18 | 0.932512 | + | 1.06321i | 0 | −0.260844 | + | 1.98292i | 0.546170i | 0 | 1.00000i | −2.35150 | + | 1.57176i | 0 | −0.580695 | + | 0.509310i | ||||||||||
323.19 | 1.21808 | − | 0.718530i | 0 | 0.967429 | − | 1.75045i | 1.77738i | 0 | 1.00000i | −0.0793484 | − | 2.82731i | 0 | 1.27710 | + | 2.16499i | ||||||||||
323.20 | 1.21808 | + | 0.718530i | 0 | 0.967429 | + | 1.75045i | − | 1.77738i | 0 | − | 1.00000i | −0.0793484 | + | 2.82731i | 0 | 1.27710 | − | 2.16499i | ||||||||
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 |
12.b | even | 2 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 756.2.e.b | ✓ | 24 |
3.b | odd | 2 | 1 | inner | 756.2.e.b | ✓ | 24 |
4.b | odd | 2 | 1 | inner | 756.2.e.b | ✓ | 24 |
12.b | even | 2 | 1 | inner | 756.2.e.b | ✓ | 24 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
756.2.e.b | ✓ | 24 | 1.a | even | 1 | 1 | trivial |
756.2.e.b | ✓ | 24 | 3.b | odd | 2 | 1 | inner |
756.2.e.b | ✓ | 24 | 4.b | odd | 2 | 1 | inner |
756.2.e.b | ✓ | 24 | 12.b | even | 2 | 1 | inner |
Hecke kernels
This newform subspace can be constructed as the kernel of the linear operator \( T_{5}^{12} + 36T_{5}^{10} + 406T_{5}^{8} + 1540T_{5}^{6} + 2065T_{5}^{4} + 704T_{5}^{2} + 64 \) acting on \(S_{2}^{\mathrm{new}}(756, [\chi])\).