Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [147,4,Mod(146,147)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(147, base_ring=CyclotomicField(2))
chi = DirichletCharacter(H, H._module([1, 1]))
N = Newforms(chi, 4, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("147.146");
S:= CuspForms(chi, 4);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 147 = 3 \cdot 7^{2} \) |
Weight: | \( k \) | \(=\) | \( 4 \) |
Character orbit: | \([\chi]\) | \(=\) | 147.c (of order \(2\), degree \(1\), 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: | \(24\) |
Twist minimal: | yes |
Sato-Tate group: | $\mathrm{SU}(2)[C_{2}]$ |
$q$-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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
146.1 | − | 5.37572i | −2.08523 | − | 4.75939i | −20.8984 | 2.78815 | −25.5852 | + | 11.2096i | 0 | 69.3382i | −18.3036 | + | 19.8488i | − | 14.9883i | ||||||||||
146.2 | − | 5.37572i | 2.08523 | + | 4.75939i | −20.8984 | −2.78815 | 25.5852 | − | 11.2096i | 0 | 69.3382i | −18.3036 | + | 19.8488i | 14.9883i | |||||||||||
146.3 | − | 4.84485i | −5.11673 | + | 0.905040i | −15.4725 | −17.3012 | 4.38478 | + | 24.7898i | 0 | 36.2033i | 25.3618 | − | 9.26169i | 83.8216i | |||||||||||
146.4 | − | 4.84485i | 5.11673 | − | 0.905040i | −15.4725 | 17.3012 | −4.38478 | − | 24.7898i | 0 | 36.2033i | 25.3618 | − | 9.26169i | − | 83.8216i | ||||||||||
146.5 | − | 3.20022i | −0.930073 | − | 5.11224i | −2.24142 | 11.9763 | −16.3603 | + | 2.97644i | 0 | − | 18.4287i | −25.2699 | + | 9.50951i | − | 38.3267i | |||||||||
146.6 | − | 3.20022i | 0.930073 | + | 5.11224i | −2.24142 | −11.9763 | 16.3603 | − | 2.97644i | 0 | − | 18.4287i | −25.2699 | + | 9.50951i | 38.3267i | ||||||||||
146.7 | − | 2.86969i | −2.76278 | + | 4.40080i | −0.235115 | −5.57059 | 12.6289 | + | 7.92832i | 0 | − | 22.2828i | −11.7341 | − | 24.3169i | 15.9859i | ||||||||||
146.8 | − | 2.86969i | 2.76278 | − | 4.40080i | −0.235115 | 5.57059 | −12.6289 | − | 7.92832i | 0 | − | 22.2828i | −11.7341 | − | 24.3169i | − | 15.9859i | |||||||||
146.9 | − | 1.05015i | −4.50851 | + | 2.58329i | 6.89718 | −10.2305 | 2.71285 | + | 4.73462i | 0 | − | 15.6443i | 13.6533 | − | 23.2935i | 10.7436i | ||||||||||
146.10 | − | 1.05015i | 4.50851 | − | 2.58329i | 6.89718 | 10.2305 | −2.71285 | − | 4.73462i | 0 | − | 15.6443i | 13.6533 | − | 23.2935i | − | 10.7436i | |||||||||
146.11 | − | 0.222948i | −3.69409 | + | 3.65427i | 7.95029 | 18.7021 | 0.814713 | + | 0.823589i | 0 | − | 3.55609i | 0.292585 | − | 26.9984i | − | 4.16960i | |||||||||
146.12 | − | 0.222948i | 3.69409 | − | 3.65427i | 7.95029 | −18.7021 | −0.814713 | − | 0.823589i | 0 | − | 3.55609i | 0.292585 | − | 26.9984i | 4.16960i | ||||||||||
146.13 | 0.222948i | −3.69409 | − | 3.65427i | 7.95029 | 18.7021 | 0.814713 | − | 0.823589i | 0 | 3.55609i | 0.292585 | + | 26.9984i | 4.16960i | ||||||||||||
146.14 | 0.222948i | 3.69409 | + | 3.65427i | 7.95029 | −18.7021 | −0.814713 | + | 0.823589i | 0 | 3.55609i | 0.292585 | + | 26.9984i | − | 4.16960i | |||||||||||
146.15 | 1.05015i | −4.50851 | − | 2.58329i | 6.89718 | −10.2305 | 2.71285 | − | 4.73462i | 0 | 15.6443i | 13.6533 | + | 23.2935i | − | 10.7436i | |||||||||||
146.16 | 1.05015i | 4.50851 | + | 2.58329i | 6.89718 | 10.2305 | −2.71285 | + | 4.73462i | 0 | 15.6443i | 13.6533 | + | 23.2935i | 10.7436i | ||||||||||||
146.17 | 2.86969i | −2.76278 | − | 4.40080i | −0.235115 | −5.57059 | 12.6289 | − | 7.92832i | 0 | 22.2828i | −11.7341 | + | 24.3169i | − | 15.9859i | |||||||||||
146.18 | 2.86969i | 2.76278 | + | 4.40080i | −0.235115 | 5.57059 | −12.6289 | + | 7.92832i | 0 | 22.2828i | −11.7341 | + | 24.3169i | 15.9859i | ||||||||||||
146.19 | 3.20022i | −0.930073 | + | 5.11224i | −2.24142 | 11.9763 | −16.3603 | − | 2.97644i | 0 | 18.4287i | −25.2699 | − | 9.50951i | 38.3267i | ||||||||||||
146.20 | 3.20022i | 0.930073 | − | 5.11224i | −2.24142 | −11.9763 | 16.3603 | + | 2.97644i | 0 | 18.4287i | −25.2699 | − | 9.50951i | − | 38.3267i | |||||||||||
See all 24 embeddings |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
3.b | odd | 2 | 1 | inner |
7.b | odd | 2 | 1 | inner |
21.c | even | 2 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 147.4.c.b | ✓ | 24 |
3.b | odd | 2 | 1 | inner | 147.4.c.b | ✓ | 24 |
7.b | odd | 2 | 1 | inner | 147.4.c.b | ✓ | 24 |
7.c | even | 3 | 2 | 147.4.g.e | 48 | ||
7.d | odd | 6 | 2 | 147.4.g.e | 48 | ||
21.c | even | 2 | 1 | inner | 147.4.c.b | ✓ | 24 |
21.g | even | 6 | 2 | 147.4.g.e | 48 | ||
21.h | odd | 6 | 2 | 147.4.g.e | 48 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
147.4.c.b | ✓ | 24 | 1.a | even | 1 | 1 | trivial |
147.4.c.b | ✓ | 24 | 3.b | odd | 2 | 1 | inner |
147.4.c.b | ✓ | 24 | 7.b | odd | 2 | 1 | inner |
147.4.c.b | ✓ | 24 | 21.c | even | 2 | 1 | inner |
147.4.g.e | 48 | 7.c | even | 3 | 2 | ||
147.4.g.e | 48 | 7.d | odd | 6 | 2 | ||
147.4.g.e | 48 | 21.g | even | 6 | 2 | ||
147.4.g.e | 48 | 21.h | odd | 6 | 2 |
Hecke kernels
This newform subspace can be constructed as the kernel of the linear operator \( T_{2}^{12} + 72T_{2}^{10} + 1812T_{2}^{8} + 18948T_{2}^{6} + 76839T_{2}^{4} + 66864T_{2}^{2} + 3136 \) acting on \(S_{4}^{\mathrm{new}}(147, [\chi])\).