Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [64,20,Mod(17,64)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(64, base_ring=CyclotomicField(4))
chi = DirichletCharacter(H, H._module([0, 3]))
N = Newforms(chi, 20, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("64.17");
S:= CuspForms(chi, 20);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 64 = 2^{6} \) |
Weight: | \( k \) | \(=\) | \( 20 \) |
Character orbit: | \([\chi]\) | \(=\) | 64.e (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: | \(146.442685796\) |
Analytic rank: | \(0\) |
Dimension: | \(74\) |
Relative dimension: | \(37\) over \(\Q(i)\) |
Twist minimal: | no (minimal twist has level 16) |
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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
17.1 | 0 | −44301.5 | − | 44301.5i | 0 | 2.75310e6 | − | 2.75310e6i | 0 | − | 9.02228e7i | 0 | 2.76298e9i | 0 | |||||||||||||
17.2 | 0 | −42135.4 | − | 42135.4i | 0 | −3.60880e6 | + | 3.60880e6i | 0 | 1.90652e8i | 0 | 2.38852e9i | 0 | ||||||||||||||
17.3 | 0 | −41276.6 | − | 41276.6i | 0 | 1.93285e6 | − | 1.93285e6i | 0 | − | 5.84483e7i | 0 | 2.24525e9i | 0 | |||||||||||||
17.4 | 0 | −37550.7 | − | 37550.7i | 0 | −871067. | + | 871067.i | 0 | − | 6.95820e7i | 0 | 1.65785e9i | 0 | |||||||||||||
17.5 | 0 | −37232.5 | − | 37232.5i | 0 | −1.68693e6 | + | 1.68693e6i | 0 | 8.40002e7i | 0 | 1.61026e9i | 0 | ||||||||||||||
17.6 | 0 | −36217.6 | − | 36217.6i | 0 | −5.07791e6 | + | 5.07791e6i | 0 | − | 6.82116e7i | 0 | 1.46117e9i | 0 | |||||||||||||
17.7 | 0 | −31083.9 | − | 31083.9i | 0 | 4.67376e6 | − | 4.67376e6i | 0 | 5.10598e7i | 0 | 7.70159e8i | 0 | ||||||||||||||
17.8 | 0 | −29061.4 | − | 29061.4i | 0 | 3.69217e6 | − | 3.69217e6i | 0 | 1.48589e8i | 0 | 5.26864e8i | 0 | ||||||||||||||
17.9 | 0 | −26937.6 | − | 26937.6i | 0 | −5.75592e6 | + | 5.75592e6i | 0 | − | 8.04648e7i | 0 | 2.89010e8i | 0 | |||||||||||||
17.10 | 0 | −23817.0 | − | 23817.0i | 0 | 1.71535e6 | − | 1.71535e6i | 0 | 1.57761e8i | 0 | − | 2.77646e7i | 0 | |||||||||||||
17.11 | 0 | −20499.7 | − | 20499.7i | 0 | 5.50901e6 | − | 5.50901e6i | 0 | − | 1.06467e8i | 0 | − | 3.21788e8i | 0 | ||||||||||||
17.12 | 0 | −20001.7 | − | 20001.7i | 0 | −160282. | + | 160282.i | 0 | − | 1.77970e8i | 0 | − | 3.62125e8i | 0 | ||||||||||||
17.13 | 0 | −15255.1 | − | 15255.1i | 0 | −1.98094e6 | + | 1.98094e6i | 0 | 3.83254e7i | 0 | − | 6.96828e8i | 0 | |||||||||||||
17.14 | 0 | −14906.4 | − | 14906.4i | 0 | −497430. | + | 497430.i | 0 | − | 1.32373e8i | 0 | − | 7.17857e8i | 0 | ||||||||||||
17.15 | 0 | −10219.4 | − | 10219.4i | 0 | −874334. | + | 874334.i | 0 | 1.31849e7i | 0 | − | 9.53391e8i | 0 | |||||||||||||
17.16 | 0 | −8027.04 | − | 8027.04i | 0 | −3.58124e6 | + | 3.58124e6i | 0 | 2.91204e7i | 0 | − | 1.03339e9i | 0 | |||||||||||||
17.17 | 0 | −6657.76 | − | 6657.76i | 0 | −1.03514e6 | + | 1.03514e6i | 0 | 1.15949e8i | 0 | − | 1.07361e9i | 0 | |||||||||||||
17.18 | 0 | −2944.14 | − | 2944.14i | 0 | 3.79583e6 | − | 3.79583e6i | 0 | 6.01043e7i | 0 | − | 1.14493e9i | 0 | |||||||||||||
17.19 | 0 | 3594.61 | + | 3594.61i | 0 | 5.33235e6 | − | 5.33235e6i | 0 | − | 1.18416e8i | 0 | − | 1.13642e9i | 0 | ||||||||||||
17.20 | 0 | 4275.26 | + | 4275.26i | 0 | 1.79117e6 | − | 1.79117e6i | 0 | − | 1.14366e8i | 0 | − | 1.12571e9i | 0 | ||||||||||||
See all 74 embeddings |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
16.e | even | 4 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 64.20.e.a | 74 | |
4.b | odd | 2 | 1 | 16.20.e.a | ✓ | 74 | |
16.e | even | 4 | 1 | inner | 64.20.e.a | 74 | |
16.f | odd | 4 | 1 | 16.20.e.a | ✓ | 74 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
16.20.e.a | ✓ | 74 | 4.b | odd | 2 | 1 | |
16.20.e.a | ✓ | 74 | 16.f | odd | 4 | 1 | |
64.20.e.a | 74 | 1.a | even | 1 | 1 | trivial | |
64.20.e.a | 74 | 16.e | even | 4 | 1 | inner |
Hecke kernels
This newform subspace is the entire newspace \(S_{20}^{\mathrm{new}}(64, [\chi])\).