Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [216,4,Mod(25,216)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(216, base_ring=CyclotomicField(18))
chi = DirichletCharacter(H, H._module([0, 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("216.25");
S:= CuspForms(chi, 4);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 216 = 2^{3} \cdot 3^{3} \) |
Weight: | \( k \) | \(=\) | \( 4 \) |
Character orbit: | \([\chi]\) | \(=\) | 216.q (of order \(9\), 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: | \(12.7444125612\) |
Analytic rank: | \(0\) |
Dimension: | \(78\) |
Relative dimension: | \(13\) over \(\Q(\zeta_{9})\) |
Twist minimal: | yes |
Sato-Tate group: | $\mathrm{SU}(2)[C_{9}]$ |
$q$-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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
25.1 | 0 | −5.14635 | − | 0.717694i | 0 | 7.62051 | − | 6.39436i | 0 | −26.4733 | + | 9.63549i | 0 | 25.9698 | + | 7.38701i | 0 | ||||||||||
25.2 | 0 | −4.95983 | + | 1.54921i | 0 | −3.10944 | + | 2.60913i | 0 | 15.3425 | − | 5.58422i | 0 | 22.1999 | − | 15.3676i | 0 | ||||||||||
25.3 | 0 | −3.82100 | − | 3.52135i | 0 | −14.5761 | + | 12.2308i | 0 | 5.97810 | − | 2.17585i | 0 | 2.20013 | + | 26.9102i | 0 | ||||||||||
25.4 | 0 | −3.40900 | − | 3.92157i | 0 | 10.9702 | − | 9.20510i | 0 | 24.6519 | − | 8.97257i | 0 | −3.75745 | + | 26.7373i | 0 | ||||||||||
25.5 | 0 | −2.20849 | + | 4.70346i | 0 | −5.53324 | + | 4.64294i | 0 | −14.1673 | + | 5.15648i | 0 | −17.2451 | − | 20.7751i | 0 | ||||||||||
25.6 | 0 | −1.36036 | + | 5.01492i | 0 | 16.4848 | − | 13.8323i | 0 | 15.4759 | − | 5.63277i | 0 | −23.2988 | − | 13.6442i | 0 | ||||||||||
25.7 | 0 | −0.0951628 | − | 5.19528i | 0 | 3.95912 | − | 3.32210i | 0 | −7.57963 | + | 2.75876i | 0 | −26.9819 | + | 0.988795i | 0 | ||||||||||
25.8 | 0 | 2.57391 | + | 4.51386i | 0 | −4.64451 | + | 3.89720i | 0 | 29.6546 | − | 10.7934i | 0 | −13.7500 | + | 23.2366i | 0 | ||||||||||
25.9 | 0 | 2.81809 | − | 4.36559i | 0 | −9.81432 | + | 8.23519i | 0 | −8.03696 | + | 2.92522i | 0 | −11.1167 | − | 24.6053i | 0 | ||||||||||
25.10 | 0 | 3.15436 | + | 4.12917i | 0 | 5.75544 | − | 4.82938i | 0 | −13.8192 | + | 5.02977i | 0 | −7.10004 | + | 26.0497i | 0 | ||||||||||
25.11 | 0 | 4.89500 | + | 1.74325i | 0 | −12.6811 | + | 10.6407i | 0 | −16.3558 | + | 5.95303i | 0 | 20.9221 | + | 17.0665i | 0 | ||||||||||
25.12 | 0 | 4.90684 | − | 1.70966i | 0 | −1.21843 | + | 1.02239i | 0 | 30.6743 | − | 11.1645i | 0 | 21.1541 | − | 16.7781i | 0 | ||||||||||
25.13 | 0 | 4.95013 | − | 1.57994i | 0 | 10.6173 | − | 8.90899i | 0 | −6.35287 | + | 2.31226i | 0 | 22.0076 | − | 15.6418i | 0 | ||||||||||
49.1 | 0 | −5.04226 | − | 1.25523i | 0 | −0.475470 | + | 0.173057i | 0 | −3.67805 | − | 20.8592i | 0 | 23.8488 | + | 12.6584i | 0 | ||||||||||
49.2 | 0 | −4.98381 | + | 1.47026i | 0 | −5.94819 | + | 2.16496i | 0 | 5.30186 | + | 30.0684i | 0 | 22.6767 | − | 14.6550i | 0 | ||||||||||
49.3 | 0 | −3.63180 | − | 3.71619i | 0 | 17.4854 | − | 6.36417i | 0 | 5.73955 | + | 32.5506i | 0 | −0.620094 | + | 26.9929i | 0 | ||||||||||
49.4 | 0 | −3.36992 | + | 3.95520i | 0 | 14.8671 | − | 5.41117i | 0 | −1.06908 | − | 6.06305i | 0 | −4.28728 | − | 26.6574i | 0 | ||||||||||
49.5 | 0 | −3.06880 | + | 4.19315i | 0 | −17.7135 | + | 6.44718i | 0 | −1.46194 | − | 8.29106i | 0 | −8.16495 | − | 25.7358i | 0 | ||||||||||
49.6 | 0 | −2.47330 | − | 4.56977i | 0 | −10.4202 | + | 3.79265i | 0 | 1.34972 | + | 7.65462i | 0 | −14.7656 | + | 22.6048i | 0 | ||||||||||
49.7 | 0 | 0.398201 | − | 5.18087i | 0 | 15.0362 | − | 5.47273i | 0 | −4.87347 | − | 27.6388i | 0 | −26.6829 | − | 4.12606i | 0 | ||||||||||
See all 78 embeddings |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
27.e | even | 9 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 216.4.q.a | ✓ | 78 |
27.e | even | 9 | 1 | inner | 216.4.q.a | ✓ | 78 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
216.4.q.a | ✓ | 78 | 1.a | even | 1 | 1 | trivial |
216.4.q.a | ✓ | 78 | 27.e | even | 9 | 1 | inner |
Hecke kernels
This newform subspace can be constructed as the kernel of the linear operator \( T_{5}^{78} - 240 T_{5}^{76} + 1403 T_{5}^{75} + 122121 T_{5}^{74} + 369327 T_{5}^{73} + \cdots + 11\!\cdots\!36 \) acting on \(S_{4}^{\mathrm{new}}(216, [\chi])\).