Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [147,4,Mod(4,147)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(147, base_ring=CyclotomicField(42))
chi = DirichletCharacter(H, H._module([0, 10]))
N = Newforms(chi, 4, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("147.4");
S:= CuspForms(chi, 4);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 147 = 3 \cdot 7^{2} \) |
Weight: | \( k \) | \(=\) | \( 4 \) |
Character orbit: | \([\chi]\) | \(=\) | 147.m (of order \(21\), degree \(12\), 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: | \(8.67328077084\) |
Analytic rank: | \(0\) |
Dimension: | \(156\) |
Relative dimension: | \(13\) over \(\Q(\zeta_{21})\) |
Twist minimal: | yes |
Sato-Tate group: | $\mathrm{SU}(2)[C_{21}]$ |
$q$-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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
4.1 | −4.11685 | − | 2.80682i | −2.19916 | − | 2.04052i | 6.14747 | + | 15.6635i | 11.9295 | − | 3.67976i | 3.32622 | + | 14.5731i | −10.7479 | − | 15.0825i | 9.78648 | − | 42.8774i | 0.672571 | + | 8.97483i | −59.4402 | − | 18.3349i |
4.2 | −4.02532 | − | 2.74442i | −2.19916 | − | 2.04052i | 5.74864 | + | 14.6473i | −14.3434 | + | 4.42434i | 3.25227 | + | 14.2491i | −10.0972 | + | 15.5257i | 8.38544 | − | 36.7390i | 0.672571 | + | 8.97483i | 69.8788 | + | 21.5548i |
4.3 | −3.74438 | − | 2.55287i | −2.19916 | − | 2.04052i | 4.58047 | + | 11.6709i | −2.61682 | + | 0.807182i | 3.02528 | + | 13.2546i | 16.8460 | − | 7.69486i | 4.57577 | − | 20.0478i | 0.672571 | + | 8.97483i | 11.8590 | + | 3.65802i |
4.4 | −2.11057 | − | 1.43896i | −2.19916 | − | 2.04052i | −0.538832 | − | 1.37292i | 6.11985 | − | 1.88772i | 1.70524 | + | 7.47116i | 3.61666 | + | 18.1637i | −5.38566 | + | 23.5961i | 0.672571 | + | 8.97483i | −15.6327 | − | 4.82206i |
4.5 | −1.68383 | − | 1.14802i | −2.19916 | − | 2.04052i | −1.40538 | − | 3.58084i | −13.6179 | + | 4.20057i | 1.36046 | + | 5.96057i | −10.0932 | − | 15.5283i | −5.37235 | + | 23.5378i | 0.672571 | + | 8.97483i | 27.7527 | + | 8.56057i |
4.6 | −0.640950 | − | 0.436993i | −2.19916 | − | 2.04052i | −2.70287 | − | 6.88681i | 18.6060 | − | 5.73920i | 0.517858 | + | 2.26889i | 12.6118 | − | 13.5626i | −2.65803 | + | 11.6456i | 0.672571 | + | 8.97483i | −14.4335 | − | 4.45216i |
4.7 | −0.0432659 | − | 0.0294982i | −2.19916 | − | 2.04052i | −2.92173 | − | 7.44444i | −3.49980 | + | 1.07954i | 0.0349568 | + | 0.153156i | 18.2783 | − | 2.98381i | −0.186404 | + | 0.816691i | 0.672571 | + | 8.97483i | 0.183266 | + | 0.0565302i |
4.8 | 0.758180 | + | 0.516918i | −2.19916 | − | 2.04052i | −2.61510 | − | 6.66316i | −15.2135 | + | 4.69275i | −0.612574 | − | 2.68386i | 13.8677 | + | 12.2755i | 3.09513 | − | 13.5606i | 0.672571 | + | 8.97483i | −13.9604 | − | 4.30620i |
4.9 | 0.887861 | + | 0.605333i | −2.19916 | − | 2.04052i | −2.50086 | − | 6.37209i | 3.25860 | − | 1.00515i | −0.717351 | − | 3.14292i | −18.3902 | + | 2.19071i | 3.54976 | − | 15.5525i | 0.672571 | + | 8.97483i | 3.50163 | + | 1.08011i |
4.10 | 2.13784 | + | 1.45755i | −2.19916 | − | 2.04052i | −0.476845 | − | 1.21498i | 5.30971 | − | 1.63783i | −1.72727 | − | 7.56767i | −2.39700 | + | 18.3645i | 5.35754 | − | 23.4729i | 0.672571 | + | 8.97483i | 13.7385 | + | 4.23777i |
4.11 | 3.15659 | + | 2.15212i | −2.19916 | − | 2.04052i | 2.40967 | + | 6.13975i | 12.9112 | − | 3.98258i | −2.55038 | − | 11.1739i | −3.21117 | − | 18.2397i | 1.19384 | − | 5.23057i | 0.672571 | + | 8.97483i | 49.3263 | + | 15.2152i |
4.12 | 3.71363 | + | 2.53191i | −2.19916 | − | 2.04052i | 4.45774 | + | 11.3581i | −14.6509 | + | 4.51920i | −3.00044 | − | 13.1458i | −17.4447 | + | 6.21940i | −4.20220 | + | 18.4111i | 0.672571 | + | 8.97483i | −65.8502 | − | 20.3121i |
4.13 | 4.05860 | + | 2.76710i | −2.19916 | − | 2.04052i | 5.89261 | + | 15.0141i | 4.01431 | − | 1.23825i | −3.27916 | − | 14.3669i | 15.8214 | + | 9.62721i | −8.88551 | + | 38.9300i | 0.672571 | + | 8.97483i | 19.7188 | + | 6.08245i |
16.1 | −1.98724 | − | 5.06341i | 0.224190 | + | 2.99161i | −15.8246 | + | 14.6831i | −3.48902 | + | 2.37878i | 14.7022 | − | 7.08023i | −18.4029 | + | 2.08126i | 66.5878 | + | 32.0670i | −8.89948 | + | 1.34138i | 18.9783 | + | 12.9392i |
16.2 | −1.48901 | − | 3.79395i | 0.224190 | + | 2.99161i | −6.31245 | + | 5.85710i | −2.37526 | + | 1.61943i | 11.0162 | − | 5.30512i | −1.23951 | − | 18.4787i | 2.24435 | + | 1.08082i | −8.89948 | + | 1.34138i | 9.68082 | + | 6.60027i |
16.3 | −1.39677 | − | 3.55891i | 0.224190 | + | 2.99161i | −4.85044 | + | 4.50055i | 3.85989 | − | 2.63163i | 10.3337 | − | 4.97646i | 1.48013 | + | 18.4610i | −4.76462 | − | 2.29452i | −8.89948 | + | 1.34138i | −14.7571 | − | 10.0612i |
16.4 | −1.01135 | − | 2.57687i | 0.224190 | + | 2.99161i | 0.246973 | − | 0.229157i | −10.9026 | + | 7.43329i | 7.48226 | − | 3.60327i | 18.0818 | − | 4.00598i | −20.7930 | − | 10.0134i | −8.89948 | + | 1.34138i | 30.1810 | + | 20.5770i |
16.5 | −0.835252 | − | 2.12819i | 0.224190 | + | 2.99161i | 2.03288 | − | 1.88624i | 16.0880 | − | 10.9686i | 6.17945 | − | 2.97587i | −18.5079 | − | 0.677446i | −22.1908 | − | 10.6865i | −8.89948 | + | 1.34138i | −36.7808 | − | 25.0767i |
16.6 | −0.265545 | − | 0.676597i | 0.224190 | + | 2.99161i | 5.47715 | − | 5.08205i | 13.3425 | − | 9.09677i | 1.96458 | − | 0.946093i | 17.0296 | − | 7.27963i | −10.1318 | − | 4.87922i | −8.89948 | + | 1.34138i | −9.69788 | − | 6.61190i |
16.7 | −0.189972 | − | 0.484042i | 0.224190 | + | 2.99161i | 5.66621 | − | 5.25747i | −4.99920 | + | 3.40840i | 1.40548 | − | 0.676841i | −2.11423 | + | 18.3992i | −7.36919 | − | 3.54882i | −8.89948 | + | 1.34138i | 2.59952 | + | 1.77232i |
See next 80 embeddings (of 156 total) |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
49.g | even | 21 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 147.4.m.a | ✓ | 156 |
49.g | even | 21 | 1 | inner | 147.4.m.a | ✓ | 156 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
147.4.m.a | ✓ | 156 | 1.a | even | 1 | 1 | trivial |
147.4.m.a | ✓ | 156 | 49.g | even | 21 | 1 | inner |
Hecke kernels
This newform subspace can be constructed as the kernel of the linear operator \( T_{2}^{156} + 2 T_{2}^{155} - 72 T_{2}^{154} - 160 T_{2}^{153} + 1937 T_{2}^{152} + \cdots + 76\!\cdots\!24 \) acting on \(S_{4}^{\mathrm{new}}(147, [\chi])\).