Properties

Label 648.2.t.a
Level $648$
Weight $2$
Character orbit 648.t
Analytic conductor $5.174$
Analytic rank $0$
Dimension $204$
CM no
Inner twists $4$

Related objects

Downloads

Learn more

Show commands: Magma / PariGP / SageMath

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.

\(\operatorname{Tr}(f)(q) = \) \( 204 q + 6 q^{2} - 6 q^{4} - 12 q^{7} + 3 q^{8}+O(q^{10}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q) = \) \( 204 q + 6 q^{2} - 6 q^{4} - 12 q^{7} + 3 q^{8} - 3 q^{10} + 21 q^{14} - 6 q^{16} + 6 q^{17} - 15 q^{20} - 6 q^{22} + 12 q^{23} - 12 q^{25} + 30 q^{26} - 12 q^{28} - 12 q^{31} + 36 q^{32} + 42 q^{38} - 21 q^{40} + 24 q^{41} - 21 q^{44} - 3 q^{46} + 12 q^{47} - 12 q^{49} + 99 q^{50} - 33 q^{52} - 24 q^{55} - 99 q^{56} + 21 q^{58} + 36 q^{62} - 3 q^{64} + 12 q^{65} - 75 q^{68} + 9 q^{70} + 90 q^{71} - 6 q^{73} - 9 q^{74} - 18 q^{76} - 12 q^{79} - 78 q^{80} - 12 q^{82} + 30 q^{86} - 30 q^{88} + 6 q^{89} - 111 q^{92} - 33 q^{94} + 42 q^{95} - 12 q^{97} - 54 q^{98}+O(q^{100}) \) Copy content Toggle raw display

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)
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 37.34
Significant digits:
Format:

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 \(S_{2}^{\mathrm{new}}(648, [\chi])\).