Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [336,4,Mod(239,336)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(336, base_ring=CyclotomicField(2))
chi = DirichletCharacter(H, H._module([1, 0, 1, 0]))
N = Newforms(chi, 4, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("336.239");
S:= CuspForms(chi, 4);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 336 = 2^{4} \cdot 3 \cdot 7 \) |
Weight: | \( k \) | \(=\) | \( 4 \) |
Character orbit: | \([\chi]\) | \(=\) | 336.h (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: | \(19.8246417619\) |
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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
239.1 | 0 | −5.19367 | − | 0.160438i | 0 | 7.59851i | 0 | 7.00000i | 0 | 26.9485 | + | 1.66652i | 0 | ||||||||||||||
239.2 | 0 | −5.19367 | + | 0.160438i | 0 | − | 7.59851i | 0 | − | 7.00000i | 0 | 26.9485 | − | 1.66652i | 0 | ||||||||||||
239.3 | 0 | −4.13038 | − | 3.15276i | 0 | 1.18345i | 0 | − | 7.00000i | 0 | 7.12016 | + | 26.0443i | 0 | |||||||||||||
239.4 | 0 | −4.13038 | + | 3.15276i | 0 | − | 1.18345i | 0 | 7.00000i | 0 | 7.12016 | − | 26.0443i | 0 | |||||||||||||
239.5 | 0 | −3.03558 | − | 4.21726i | 0 | − | 3.22455i | 0 | 7.00000i | 0 | −8.57055 | + | 25.6036i | 0 | |||||||||||||
239.6 | 0 | −3.03558 | + | 4.21726i | 0 | 3.22455i | 0 | − | 7.00000i | 0 | −8.57055 | − | 25.6036i | 0 | |||||||||||||
239.7 | 0 | −2.33643 | − | 4.64124i | 0 | − | 12.0055i | 0 | 7.00000i | 0 | −16.0822 | + | 21.6878i | 0 | |||||||||||||
239.8 | 0 | −2.33643 | + | 4.64124i | 0 | 12.0055i | 0 | − | 7.00000i | 0 | −16.0822 | − | 21.6878i | 0 | |||||||||||||
239.9 | 0 | −1.99829 | − | 4.79655i | 0 | 16.7287i | 0 | − | 7.00000i | 0 | −19.0137 | + | 19.1697i | 0 | |||||||||||||
239.10 | 0 | −1.99829 | + | 4.79655i | 0 | − | 16.7287i | 0 | 7.00000i | 0 | −19.0137 | − | 19.1697i | 0 | |||||||||||||
239.11 | 0 | −1.13969 | − | 5.06963i | 0 | − | 14.6453i | 0 | − | 7.00000i | 0 | −24.4022 | + | 11.5556i | 0 | ||||||||||||
239.12 | 0 | −1.13969 | + | 5.06963i | 0 | 14.6453i | 0 | 7.00000i | 0 | −24.4022 | − | 11.5556i | 0 | ||||||||||||||
239.13 | 0 | 1.13969 | − | 5.06963i | 0 | 14.6453i | 0 | − | 7.00000i | 0 | −24.4022 | − | 11.5556i | 0 | |||||||||||||
239.14 | 0 | 1.13969 | + | 5.06963i | 0 | − | 14.6453i | 0 | 7.00000i | 0 | −24.4022 | + | 11.5556i | 0 | |||||||||||||
239.15 | 0 | 1.99829 | − | 4.79655i | 0 | − | 16.7287i | 0 | − | 7.00000i | 0 | −19.0137 | − | 19.1697i | 0 | ||||||||||||
239.16 | 0 | 1.99829 | + | 4.79655i | 0 | 16.7287i | 0 | 7.00000i | 0 | −19.0137 | + | 19.1697i | 0 | ||||||||||||||
239.17 | 0 | 2.33643 | − | 4.64124i | 0 | 12.0055i | 0 | 7.00000i | 0 | −16.0822 | − | 21.6878i | 0 | ||||||||||||||
239.18 | 0 | 2.33643 | + | 4.64124i | 0 | − | 12.0055i | 0 | − | 7.00000i | 0 | −16.0822 | + | 21.6878i | 0 | ||||||||||||
239.19 | 0 | 3.03558 | − | 4.21726i | 0 | 3.22455i | 0 | 7.00000i | 0 | −8.57055 | − | 25.6036i | 0 | ||||||||||||||
239.20 | 0 | 3.03558 | + | 4.21726i | 0 | − | 3.22455i | 0 | − | 7.00000i | 0 | −8.57055 | + | 25.6036i | 0 | ||||||||||||
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 | 336.4.h.b | ✓ | 24 |
3.b | odd | 2 | 1 | inner | 336.4.h.b | ✓ | 24 |
4.b | odd | 2 | 1 | inner | 336.4.h.b | ✓ | 24 |
12.b | even | 2 | 1 | inner | 336.4.h.b | ✓ | 24 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
336.4.h.b | ✓ | 24 | 1.a | even | 1 | 1 | trivial |
336.4.h.b | ✓ | 24 | 3.b | odd | 2 | 1 | inner |
336.4.h.b | ✓ | 24 | 4.b | odd | 2 | 1 | inner |
336.4.h.b | ✓ | 24 | 12.b | even | 2 | 1 | inner |
Hecke kernels
This newform subspace can be constructed as the kernel of the linear operator \( T_{5}^{12} + 708T_{5}^{10} + 176364T_{5}^{8} + 18224416T_{5}^{6} + 693441840T_{5}^{4} + 6129603648T_{5}^{2} + 7274042944 \) acting on \(S_{4}^{\mathrm{new}}(336, [\chi])\).