Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [648,2,Mod(37,648)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(648, base_ring=CyclotomicField(18))
chi = DirichletCharacter(H, H._module([0, 9, 14]))
N = Newforms(chi, 2, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("648.37");
S:= CuspForms(chi, 2);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 648 = 2^{3} \cdot 3^{4} \) |
Weight: | \( k \) | \(=\) | \( 2 \) |
Character orbit: | \([\chi]\) | \(=\) | 648.t (of order \(18\), degree \(6\), 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: | \(5.17430605098\) |
Analytic rank: | \(0\) |
Dimension: | \(204\) |
Relative dimension: | \(34\) over \(\Q(\zeta_{18})\) |
Twist minimal: | no (minimal twist has level 216) |
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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
37.1 | −1.41009 | − | 0.107957i | 0 | 1.97669 | + | 0.304458i | 0.608623 | + | 1.67218i | 0 | 0.408085 | + | 2.31436i | −2.75444 | − | 0.642710i | 0 | −0.677687 | − | 2.42362i | ||||||
37.2 | −1.39871 | + | 0.208809i | 0 | 1.91280 | − | 0.584128i | 1.30726 | + | 3.59167i | 0 | −0.406982 | − | 2.30811i | −2.55348 | + | 1.21644i | 0 | −2.57846 | − | 4.75075i | ||||||
37.3 | −1.39256 | − | 0.246516i | 0 | 1.87846 | + | 0.686578i | −0.355965 | − | 0.978005i | 0 | −0.272085 | − | 1.54307i | −2.44662 | − | 1.41917i | 0 | 0.254609 | + | 1.44968i | ||||||
37.4 | −1.30848 | − | 0.536554i | 0 | 1.42422 | + | 1.40414i | −1.34230 | − | 3.68793i | 0 | −0.499959 | − | 2.83541i | −1.11016 | − | 2.60145i | 0 | −0.222412 | + | 5.54579i | ||||||
37.5 | −1.24516 | + | 0.670500i | 0 | 1.10086 | − | 1.66976i | −0.882298 | − | 2.42409i | 0 | 0.818935 | + | 4.64441i | −0.251174 | + | 2.81725i | 0 | 2.72396 | + | 2.42681i | ||||||
37.6 | −1.21270 | + | 0.727574i | 0 | 0.941271 | − | 1.76466i | 0.0465753 | + | 0.127965i | 0 | −0.252128 | − | 1.42989i | 0.142441 | + | 2.82484i | 0 | −0.149586 | − | 0.121295i | ||||||
37.7 | −1.18819 | − | 0.766950i | 0 | 0.823574 | + | 1.82256i | 0.545265 | + | 1.49810i | 0 | −0.575033 | − | 3.26118i | 0.419254 | − | 2.79718i | 0 | 0.501094 | − | 2.19822i | ||||||
37.8 | −1.12116 | − | 0.861977i | 0 | 0.513991 | + | 1.93283i | 1.15428 | + | 3.17134i | 0 | 0.593321 | + | 3.36489i | 1.08978 | − | 2.61005i | 0 | 1.43950 | − | 4.55054i | ||||||
37.9 | −0.927104 | + | 1.06793i | 0 | −0.280958 | − | 1.98017i | −0.0465753 | − | 0.127965i | 0 | −0.252128 | − | 1.42989i | 2.37516 | + | 1.53578i | 0 | 0.179838 | + | 0.0688972i | ||||||
37.10 | −0.876534 | + | 1.10981i | 0 | −0.463377 | − | 1.94558i | 0.882298 | + | 2.42409i | 0 | 0.818935 | + | 4.64441i | 2.56540 | + | 1.19110i | 0 | −3.46366 | − | 1.14561i | ||||||
37.11 | −0.770006 | − | 1.18621i | 0 | −0.814182 | + | 1.82678i | −0.857221 | − | 2.35519i | 0 | 0.442985 | + | 2.51229i | 2.79386 | − | 0.440839i | 0 | −2.13369 | + | 2.83036i | ||||||
37.12 | −0.627866 | − | 1.26720i | 0 | −1.21157 | + | 1.59126i | −0.405536 | − | 1.11420i | 0 | 0.0413952 | + | 0.234764i | 2.77714 | + | 0.536197i | 0 | −1.15729 | + | 1.21346i | ||||||
37.13 | −0.565802 | − | 1.29610i | 0 | −1.35974 | + | 1.46667i | 0.890128 | + | 2.44561i | 0 | −0.478063 | − | 2.71123i | 2.67029 | + | 0.932506i | 0 | 2.66611 | − | 2.53742i | ||||||
37.14 | −0.448521 | + | 1.34120i | 0 | −1.59766 | − | 1.20312i | −1.30726 | − | 3.59167i | 0 | −0.406982 | − | 2.30811i | 2.33021 | − | 1.60316i | 0 | 5.40350 | − | 0.142366i | ||||||
37.15 | −0.139081 | − | 1.40736i | 0 | −1.96131 | + | 0.391473i | −0.141945 | − | 0.389992i | 0 | 0.275847 | + | 1.56441i | 0.823724 | + | 2.70582i | 0 | −0.529116 | + | 0.254008i | ||||||
37.16 | −0.138542 | + | 1.40741i | 0 | −1.96161 | − | 0.389971i | −0.608623 | − | 1.67218i | 0 | 0.408085 | + | 2.31436i | 0.820615 | − | 2.70677i | 0 | 2.43776 | − | 0.624915i | ||||||
37.17 | 0.000955132 | 1.41421i | 0 | −2.00000 | + | 0.00270152i | 0.355965 | + | 0.978005i | 0 | −0.272085 | − | 1.54307i | −0.00573079 | − | 2.82842i | 0 | −1.38277 | + | 0.504344i | |||||||
37.18 | 0.301188 | + | 1.38177i | 0 | −1.81857 | + | 0.832346i | 1.34230 | + | 3.68793i | 0 | −0.499959 | − | 2.83541i | −1.69784 | − | 2.26215i | 0 | −4.69159 | + | 2.96551i | ||||||
37.19 | 0.308432 | − | 1.38017i | 0 | −1.80974 | − | 0.851377i | 0.0373388 | + | 0.102588i | 0 | 0.639213 | + | 3.62515i | −1.73323 | + | 2.23516i | 0 | 0.153105 | − | 0.0198926i | ||||||
37.20 | 0.432733 | − | 1.34638i | 0 | −1.62548 | − | 1.16525i | −0.429535 | − | 1.18014i | 0 | −0.899466 | − | 5.10113i | −2.27227 | + | 1.68428i | 0 | −1.77479 | + | 0.0676334i | ||||||
See next 80 embeddings (of 204 total) |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
8.b | even | 2 | 1 | inner |
27.e | even | 9 | 1 | inner |
216.t | even | 18 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 648.2.t.a | 204 | |
3.b | odd | 2 | 1 | 216.2.t.a | ✓ | 204 | |
8.b | even | 2 | 1 | inner | 648.2.t.a | 204 | |
12.b | even | 2 | 1 | 864.2.bf.a | 204 | ||
24.f | even | 2 | 1 | 864.2.bf.a | 204 | ||
24.h | odd | 2 | 1 | 216.2.t.a | ✓ | 204 | |
27.e | even | 9 | 1 | inner | 648.2.t.a | 204 | |
27.f | odd | 18 | 1 | 216.2.t.a | ✓ | 204 | |
108.l | even | 18 | 1 | 864.2.bf.a | 204 | ||
216.t | even | 18 | 1 | inner | 648.2.t.a | 204 | |
216.v | even | 18 | 1 | 864.2.bf.a | 204 | ||
216.x | odd | 18 | 1 | 216.2.t.a | ✓ | 204 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
216.2.t.a | ✓ | 204 | 3.b | odd | 2 | 1 | |
216.2.t.a | ✓ | 204 | 24.h | odd | 2 | 1 | |
216.2.t.a | ✓ | 204 | 27.f | odd | 18 | 1 | |
216.2.t.a | ✓ | 204 | 216.x | odd | 18 | 1 | |
648.2.t.a | 204 | 1.a | even | 1 | 1 | trivial | |
648.2.t.a | 204 | 8.b | even | 2 | 1 | inner | |
648.2.t.a | 204 | 27.e | even | 9 | 1 | inner | |
648.2.t.a | 204 | 216.t | even | 18 | 1 | inner | |
864.2.bf.a | 204 | 12.b | even | 2 | 1 | ||
864.2.bf.a | 204 | 24.f | even | 2 | 1 | ||
864.2.bf.a | 204 | 108.l | even | 18 | 1 | ||
864.2.bf.a | 204 | 216.v | even | 18 | 1 |
Hecke kernels
This newform subspace is the entire newspace \(S_{2}^{\mathrm{new}}(648, [\chi])\).