Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [798,2,Mod(5,798)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(798, base_ring=CyclotomicField(18))
chi = DirichletCharacter(H, H._module([9, 15, 16]))
N = Newforms(chi, 2, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("798.5");
S:= CuspForms(chi, 2);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 798 = 2 \cdot 3 \cdot 7 \cdot 19 \) |
Weight: | \( k \) | \(=\) | \( 2 \) |
Character orbit: | \([\chi]\) | \(=\) | 798.bt (of order \(18\), degree \(6\), 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: | \(6.37206208130\) |
Analytic rank: | \(0\) |
Dimension: | \(324\) |
Relative dimension: | \(54\) over \(\Q(\zeta_{18})\) |
Twist minimal: | yes |
Sato-Tate group: | $\mathrm{SU}(2)[C_{18}]$ |
$q$-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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
5.1 | −0.984808 | − | 0.173648i | −1.73146 | − | 0.0450853i | 0.939693 | + | 0.342020i | 3.54542 | − | 1.29043i | 1.69733 | + | 0.345066i | 2.59862 | + | 0.497155i | −0.866025 | − | 0.500000i | 2.99593 | + | 0.156127i | −3.71564 | + | 0.655168i |
5.2 | −0.984808 | − | 0.173648i | −1.72928 | + | 0.0979859i | 0.939693 | + | 0.342020i | −1.62077 | + | 0.589912i | 1.72002 | + | 0.203788i | 2.41768 | − | 1.07462i | −0.866025 | − | 0.500000i | 2.98080 | − | 0.338890i | 1.69858 | − | 0.299506i |
5.3 | −0.984808 | − | 0.173648i | −1.69753 | + | 0.344103i | 0.939693 | + | 0.342020i | 1.39224 | − | 0.506735i | 1.73149 | − | 0.0441030i | −1.88305 | − | 1.85853i | −0.866025 | − | 0.500000i | 2.76319 | − | 1.16825i | −1.45909 | + | 0.257276i |
5.4 | −0.984808 | − | 0.173648i | −1.66089 | − | 0.491354i | 0.939693 | + | 0.342020i | −2.78797 | + | 1.01474i | 1.55034 | + | 0.772300i | −1.68017 | + | 2.04378i | −0.866025 | − | 0.500000i | 2.51714 | + | 1.63217i | 2.92183 | − | 0.515197i |
5.5 | −0.984808 | − | 0.173648i | −1.48409 | + | 0.893007i | 0.939693 | + | 0.342020i | −1.32965 | + | 0.483955i | 1.61662 | − | 0.621730i | −1.30520 | + | 2.30140i | −0.866025 | − | 0.500000i | 1.40508 | − | 2.65062i | 1.39349 | − | 0.245710i |
5.6 | −0.984808 | − | 0.173648i | −1.20477 | − | 1.24440i | 0.939693 | + | 0.342020i | −1.87610 | + | 0.682846i | 0.970378 | + | 1.43470i | 0.534943 | − | 2.59111i | −0.866025 | − | 0.500000i | −0.0970619 | + | 2.99843i | 1.96618 | − | 0.346690i |
5.7 | −0.984808 | − | 0.173648i | −1.14284 | + | 1.30151i | 0.939693 | + | 0.342020i | 3.55285 | − | 1.29313i | 1.35148 | − | 1.08328i | −1.88071 | + | 1.86089i | −0.866025 | − | 0.500000i | −0.387831 | − | 2.97483i | −3.72342 | + | 0.656539i |
5.8 | −0.984808 | − | 0.173648i | −1.10342 | + | 1.33509i | 0.939693 | + | 0.342020i | 0.801875 | − | 0.291859i | 1.31849 | − | 1.12320i | 2.37737 | + | 1.16109i | −0.866025 | − | 0.500000i | −0.564924 | − | 2.94633i | −0.840374 | + | 0.148181i |
5.9 | −0.984808 | − | 0.173648i | −1.10320 | − | 1.33527i | 0.939693 | + | 0.342020i | 1.68957 | − | 0.614955i | 0.854578 | + | 1.50655i | −2.57971 | − | 0.587435i | −0.866025 | − | 0.500000i | −0.565879 | + | 2.94615i | −1.77069 | + | 0.312221i |
5.10 | −0.984808 | − | 0.173648i | −0.828058 | − | 1.52129i | 0.939693 | + | 0.342020i | 1.69718 | − | 0.617724i | 0.551309 | + | 1.64197i | −0.218323 | + | 2.63673i | −0.866025 | − | 0.500000i | −1.62864 | + | 2.51943i | −1.77867 | + | 0.313627i |
5.11 | −0.984808 | − | 0.173648i | −0.689937 | + | 1.58871i | 0.939693 | + | 0.342020i | −1.04392 | + | 0.379955i | 0.955332 | − | 1.44476i | 0.0152613 | − | 2.64571i | −0.866025 | − | 0.500000i | −2.04797 | − | 2.19221i | 1.09404 | − | 0.192908i |
5.12 | −0.984808 | − | 0.173648i | −0.240402 | − | 1.71529i | 0.939693 | + | 0.342020i | −0.721795 | + | 0.262712i | −0.0611068 | + | 1.73097i | 2.53985 | + | 0.741044i | −0.866025 | − | 0.500000i | −2.88441 | + | 0.824716i | 0.756448 | − | 0.133382i |
5.13 | −0.984808 | − | 0.173648i | 0.0108782 | + | 1.73202i | 0.939693 | + | 0.342020i | −0.566128 | + | 0.206054i | 0.290049 | − | 1.70759i | −2.24043 | + | 1.40730i | −0.866025 | − | 0.500000i | −2.99976 | + | 0.0376826i | 0.593308 | − | 0.104616i |
5.14 | −0.984808 | − | 0.173648i | 0.205411 | − | 1.71983i | 0.939693 | + | 0.342020i | 2.87411 | − | 1.04609i | −0.500935 | + | 1.65803i | 1.01877 | − | 2.44174i | −0.866025 | − | 0.500000i | −2.91561 | − | 0.706542i | −3.01210 | + | 0.531114i |
5.15 | −0.984808 | − | 0.173648i | 0.365205 | − | 1.69311i | 0.939693 | + | 0.342020i | −3.01095 | + | 1.09590i | −0.653663 | + | 1.60397i | −0.886115 | − | 2.49295i | −0.866025 | − | 0.500000i | −2.73325 | − | 1.23667i | 3.15551 | − | 0.556401i |
5.16 | −0.984808 | − | 0.173648i | 0.426084 | + | 1.67882i | 0.939693 | + | 0.342020i | −0.693921 | + | 0.252567i | −0.128086 | − | 1.72731i | 1.73023 | − | 2.00157i | −0.866025 | − | 0.500000i | −2.63690 | + | 1.43064i | 0.727237 | − | 0.128232i |
5.17 | −0.984808 | − | 0.173648i | 0.477676 | + | 1.66488i | 0.939693 | + | 0.342020i | −3.94363 | + | 1.43536i | −0.181315 | − | 1.72253i | 1.27510 | + | 2.31821i | −0.866025 | − | 0.500000i | −2.54365 | + | 1.59055i | 4.13297 | − | 0.728753i |
5.18 | −0.984808 | − | 0.173648i | 0.553250 | + | 1.64131i | 0.939693 | + | 0.342020i | 2.95464 | − | 1.07540i | −0.259834 | − | 1.71245i | −2.39060 | − | 1.13360i | −0.866025 | − | 0.500000i | −2.38783 | + | 1.81612i | −3.09649 | + | 0.545995i |
5.19 | −0.984808 | − | 0.173648i | 0.624782 | − | 1.61544i | 0.939693 | + | 0.342020i | −2.78451 | + | 1.01348i | −0.895808 | + | 1.48241i | 1.38450 | + | 2.25459i | −0.866025 | − | 0.500000i | −2.21930 | − | 2.01860i | 2.91820 | − | 0.514557i |
5.20 | −0.984808 | − | 0.173648i | 0.910976 | − | 1.47313i | 0.939693 | + | 0.342020i | 3.55282 | − | 1.29312i | −1.15294 | + | 1.29256i | 0.0205122 | + | 2.64567i | −0.866025 | − | 0.500000i | −1.34025 | − | 2.68398i | −3.72340 | + | 0.656535i |
See next 80 embeddings (of 324 total) |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
3.b | odd | 2 | 1 | inner |
133.z | odd | 18 | 1 | inner |
399.cb | even | 18 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 798.2.bt.a | ✓ | 324 |
3.b | odd | 2 | 1 | inner | 798.2.bt.a | ✓ | 324 |
7.d | odd | 6 | 1 | 798.2.cb.a | yes | 324 | |
19.e | even | 9 | 1 | 798.2.cb.a | yes | 324 | |
21.g | even | 6 | 1 | 798.2.cb.a | yes | 324 | |
57.l | odd | 18 | 1 | 798.2.cb.a | yes | 324 | |
133.z | odd | 18 | 1 | inner | 798.2.bt.a | ✓ | 324 |
399.cb | even | 18 | 1 | inner | 798.2.bt.a | ✓ | 324 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
798.2.bt.a | ✓ | 324 | 1.a | even | 1 | 1 | trivial |
798.2.bt.a | ✓ | 324 | 3.b | odd | 2 | 1 | inner |
798.2.bt.a | ✓ | 324 | 133.z | odd | 18 | 1 | inner |
798.2.bt.a | ✓ | 324 | 399.cb | even | 18 | 1 | inner |
798.2.cb.a | yes | 324 | 7.d | odd | 6 | 1 | |
798.2.cb.a | yes | 324 | 19.e | even | 9 | 1 | |
798.2.cb.a | yes | 324 | 21.g | even | 6 | 1 | |
798.2.cb.a | yes | 324 | 57.l | odd | 18 | 1 |
Hecke kernels
This newform subspace is the entire newspace \(S_{2}^{\mathrm{new}}(798, [\chi])\).