Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [648,2,Mod(13,648)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(648, base_ring=CyclotomicField(54))
chi = DirichletCharacter(H, H._module([0, 27, 8]))
N = Newforms(chi, 2, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("648.13");
S:= CuspForms(chi, 2);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 648 = 2^{3} \cdot 3^{4} \) |
Weight: | \( k \) | \(=\) | \( 2 \) |
Character orbit: | \([\chi]\) | \(=\) | 648.bd (of order \(54\), degree \(18\), 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: | \(1908\) |
Relative dimension: | \(106\) over \(\Q(\zeta_{54})\) |
Twist minimal: | yes |
Sato-Tate group: | $\mathrm{SU}(2)[C_{54}]$ |
$q$-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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
13.1 | −1.41420 | − | 0.00635899i | −1.68145 | − | 0.415592i | 1.99992 | + | 0.0179858i | 2.71787 | − | 0.813676i | 2.37527 | + | 0.598422i | −1.20371 | − | 2.79050i | −2.82817 | − | 0.0381529i | 2.65457 | + | 1.39760i | −3.84878 | + | 1.13342i |
13.2 | −1.41298 | + | 0.0591140i | 1.07290 | − | 1.35974i | 1.99301 | − | 0.167054i | −2.54435 | + | 0.761729i | −1.43560 | + | 1.98471i | −0.0791644 | − | 0.183524i | −2.80620 | + | 0.353858i | −0.697789 | − | 2.91772i | 3.55008 | − | 1.22671i |
13.3 | −1.41277 | − | 0.0639239i | 0.429774 | + | 1.67788i | 1.99183 | + | 0.180619i | −4.11411 | + | 1.23168i | −0.499914 | − | 2.39793i | −1.24557 | − | 2.88757i | −2.80244 | − | 0.382498i | −2.63059 | + | 1.44222i | 5.89101 | − | 1.47709i |
13.4 | −1.40484 | − | 0.162553i | −0.0416517 | − | 1.73155i | 1.94715 | + | 0.456721i | 1.45600 | − | 0.435896i | −0.222954 | + | 2.43932i | 1.13129 | + | 2.62263i | −2.66120 | − | 0.958136i | −2.99653 | + | 0.144244i | −2.11630 | + | 0.375689i |
13.5 | −1.40382 | + | 0.171153i | −1.43648 | + | 0.967741i | 1.94141 | − | 0.480537i | 3.87465 | − | 1.15999i | 1.85093 | − | 1.60439i | 1.40145 | + | 3.24893i | −2.64315 | + | 1.00687i | 1.12695 | − | 2.78028i | −5.24077 | + | 2.29158i |
13.6 | −1.40381 | + | 0.171199i | 1.73135 | − | 0.0491944i | 1.94138 | − | 0.480663i | 0.878928 | − | 0.263134i | −2.42207 | + | 0.365466i | −1.82006 | − | 4.21937i | −2.64305 | + | 1.00712i | 2.99516 | − | 0.170346i | −1.18880 | + | 0.519862i |
13.7 | −1.39070 | + | 0.256830i | 1.07027 | + | 1.36181i | 1.86808 | − | 0.714346i | 1.22125 | − | 0.365619i | −1.83818 | − | 1.61898i | 0.532782 | + | 1.23513i | −2.41446 | + | 1.47322i | −0.709034 | + | 2.91501i | −1.60449 | + | 0.822120i |
13.8 | −1.39047 | + | 0.258070i | −1.54866 | − | 0.775654i | 1.86680 | − | 0.717676i | −2.80707 | + | 0.840380i | 2.35354 | + | 0.678857i | 0.791894 | + | 1.83582i | −2.41051 | + | 1.47967i | 1.79672 | + | 2.40245i | 3.68626 | − | 1.89294i |
13.9 | −1.35488 | − | 0.405333i | 1.49899 | + | 0.867767i | 1.67141 | + | 1.09836i | −1.99050 | + | 0.595916i | −1.67922 | − | 1.78331i | 1.60061 | + | 3.71063i | −1.81936 | − | 2.16562i | 1.49396 | + | 2.60155i | 2.93843 | 0.000580680i | |
13.10 | −1.35470 | − | 0.405938i | −1.35025 | + | 1.08482i | 1.67043 | + | 1.09985i | −1.24137 | + | 0.371641i | 2.26955 | − | 0.921488i | 1.17620 | + | 2.72673i | −1.81646 | − | 2.16806i | 0.646340 | − | 2.92955i | 1.83254 | 0.000455190i | |
13.11 | −1.34876 | − | 0.425256i | 1.03611 | + | 1.38798i | 1.63832 | + | 1.14714i | 3.18189 | − | 0.952596i | −0.807215 | − | 2.31266i | −0.256454 | − | 0.594528i | −1.72187 | − | 2.24392i | −0.852968 | + | 2.87619i | −4.69671 | − | 0.0682924i |
13.12 | −1.33846 | + | 0.456643i | 1.66450 | − | 0.479002i | 1.58296 | − | 1.22240i | −0.183674 | + | 0.0549883i | −2.00913 | + | 1.40121i | 1.23663 | + | 2.86682i | −1.56053 | + | 2.35897i | 2.54112 | − | 1.59460i | 0.220730 | − | 0.157473i |
13.13 | −1.33558 | + | 0.464990i | −0.266503 | + | 1.71143i | 1.56757 | − | 1.24207i | 0.902416 | − | 0.270166i | −0.439858 | − | 2.40967i | −0.0371225 | − | 0.0860596i | −1.51607 | + | 2.38779i | −2.85795 | − | 0.912201i | −1.07963 | + | 0.780443i |
13.14 | −1.31801 | − | 0.512678i | −1.65507 | + | 0.510644i | 1.47432 | + | 1.35143i | −1.81662 | + | 0.543860i | 2.44320 | + | 0.175479i | −0.762450 | − | 1.76756i | −1.25033 | − | 2.53706i | 2.47849 | − | 1.69030i | 2.67315 | + | 0.214525i |
13.15 | −1.28811 | − | 0.583755i | −0.393780 | + | 1.68669i | 1.31846 | + | 1.50388i | 1.38808 | − | 0.415563i | 1.49185 | − | 1.94278i | −1.33275 | − | 3.08966i | −0.820426 | − | 2.70682i | −2.68988 | − | 1.32837i | −2.03059 | − | 0.275005i |
13.16 | −1.24166 | + | 0.676962i | −1.38930 | + | 1.03433i | 1.08345 | − | 1.68111i | −0.453349 | + | 0.135724i | 1.02484 | − | 2.22479i | −1.03892 | − | 2.40849i | −0.207223 | + | 2.82083i | 0.860326 | − | 2.87399i | 0.471026 | − | 0.475423i |
13.17 | −1.23745 | − | 0.684630i | 0.393780 | − | 1.68669i | 1.06256 | + | 1.69439i | −1.38808 | + | 0.415563i | −1.64204 | + | 1.81761i | −1.33275 | − | 3.08966i | −0.154840 | − | 2.82419i | −2.68988 | − | 1.32837i | 2.00218 | + | 0.436081i |
13.18 | −1.22371 | + | 0.708889i | 0.742903 | − | 1.56464i | 0.994952 | − | 1.73496i | 2.98234 | − | 0.892854i | 0.200055 | + | 2.44131i | −0.865364 | − | 2.00614i | 0.0123558 | + | 2.82840i | −1.89619 | − | 2.32475i | −3.01660 | + | 3.20675i |
13.19 | −1.21220 | + | 0.728408i | −0.572218 | − | 1.63480i | 0.938845 | − | 1.76595i | 1.28376 | − | 0.384332i | 1.88444 | + | 1.56489i | 0.764986 | + | 1.77344i | 0.148264 | + | 2.82454i | −2.34513 | + | 1.87092i | −1.27622 | + | 1.40099i |
13.20 | −1.19829 | − | 0.751060i | 1.65507 | − | 0.510644i | 0.871818 | + | 1.79998i | 1.81662 | − | 0.543860i | −2.36678 | − | 0.631152i | −0.762450 | − | 1.76756i | 0.307200 | − | 2.81169i | 2.47849 | − | 1.69030i | −2.58531 | − | 0.712685i |
See next 80 embeddings (of 1908 total) |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
8.b | even | 2 | 1 | inner |
81.g | even | 27 | 1 | inner |
648.bd | even | 54 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 648.2.bd.a | ✓ | 1908 |
8.b | even | 2 | 1 | inner | 648.2.bd.a | ✓ | 1908 |
81.g | even | 27 | 1 | inner | 648.2.bd.a | ✓ | 1908 |
648.bd | even | 54 | 1 | inner | 648.2.bd.a | ✓ | 1908 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
648.2.bd.a | ✓ | 1908 | 1.a | even | 1 | 1 | trivial |
648.2.bd.a | ✓ | 1908 | 8.b | even | 2 | 1 | inner |
648.2.bd.a | ✓ | 1908 | 81.g | even | 27 | 1 | inner |
648.2.bd.a | ✓ | 1908 | 648.bd | even | 54 | 1 | inner |
Hecke kernels
This newform subspace is the entire newspace \(S_{2}^{\mathrm{new}}(648, [\chi])\).