Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [266,2,Mod(43,266)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(266, base_ring=CyclotomicField(18))
chi = DirichletCharacter(H, H._module([0, 16]))
N = Newforms(chi, 2, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("266.43");
S:= CuspForms(chi, 2);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 266 = 2 \cdot 7 \cdot 19 \) |
Weight: | \( k \) | \(=\) | \( 2 \) |
Character orbit: | \([\chi]\) | \(=\) | 266.u (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: | \(2.12402069377\) |
Analytic rank: | \(0\) |
Dimension: | \(24\) |
Relative dimension: | \(4\) 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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
43.1 | 0.939693 | − | 0.342020i | −0.557269 | + | 3.16043i | 0.766044 | − | 0.642788i | 2.10162 | + | 1.76347i | 0.557269 | + | 3.16043i | −0.500000 | − | 0.866025i | 0.500000 | − | 0.866025i | −6.85870 | − | 2.49636i | 2.57802 | + | 0.938324i |
43.2 | 0.939693 | − | 0.342020i | −0.0993355 | + | 0.563360i | 0.766044 | − | 0.642788i | 1.70023 | + | 1.42667i | 0.0993355 | + | 0.563360i | −0.500000 | − | 0.866025i | 0.500000 | − | 0.866025i | 2.51157 | + | 0.914137i | 2.08565 | + | 0.759113i |
43.3 | 0.939693 | − | 0.342020i | 0.00175394 | − | 0.00994711i | 0.766044 | − | 0.642788i | −2.36676 | − | 1.98595i | −0.00175394 | − | 0.00994711i | −0.500000 | − | 0.866025i | 0.500000 | − | 0.866025i | 2.81898 | + | 1.02603i | −2.90326 | − | 1.05670i |
43.4 | 0.939693 | − | 0.342020i | 0.481203 | − | 2.72904i | 0.766044 | − | 0.642788i | 1.03668 | + | 0.869879i | −0.481203 | − | 2.72904i | −0.500000 | − | 0.866025i | 0.500000 | − | 0.866025i | −4.39700 | − | 1.60038i | 1.27168 | + | 0.462853i |
85.1 | −0.173648 | − | 0.984808i | −2.24978 | + | 1.88779i | −0.939693 | + | 0.342020i | 0.157758 | + | 0.0574193i | 2.24978 | + | 1.88779i | −0.500000 | + | 0.866025i | 0.500000 | + | 0.866025i | 0.976815 | − | 5.53979i | 0.0291525 | − | 0.165332i |
85.2 | −0.173648 | − | 0.984808i | −0.587692 | + | 0.493132i | −0.939693 | + | 0.342020i | −2.10570 | − | 0.766411i | 0.587692 | + | 0.493132i | −0.500000 | + | 0.866025i | 0.500000 | + | 0.866025i | −0.418742 | + | 2.37480i | −0.389117 | + | 2.20679i |
85.3 | −0.173648 | − | 0.984808i | 0.0872325 | − | 0.0731967i | −0.939693 | + | 0.342020i | 3.51739 | + | 1.28022i | −0.0872325 | − | 0.0731967i | −0.500000 | + | 0.866025i | 0.500000 | + | 0.866025i | −0.518693 | + | 2.94165i | 0.649987 | − | 3.68626i |
85.4 | −0.173648 | − | 0.984808i | 1.98419 | − | 1.66494i | −0.939693 | + | 0.342020i | −3.62248 | − | 1.31848i | −1.98419 | − | 1.66494i | −0.500000 | + | 0.866025i | 0.500000 | + | 0.866025i | 0.644068 | − | 3.65269i | −0.669408 | + | 3.79640i |
99.1 | 0.939693 | + | 0.342020i | −0.557269 | − | 3.16043i | 0.766044 | + | 0.642788i | 2.10162 | − | 1.76347i | 0.557269 | − | 3.16043i | −0.500000 | + | 0.866025i | 0.500000 | + | 0.866025i | −6.85870 | + | 2.49636i | 2.57802 | − | 0.938324i |
99.2 | 0.939693 | + | 0.342020i | −0.0993355 | − | 0.563360i | 0.766044 | + | 0.642788i | 1.70023 | − | 1.42667i | 0.0993355 | − | 0.563360i | −0.500000 | + | 0.866025i | 0.500000 | + | 0.866025i | 2.51157 | − | 0.914137i | 2.08565 | − | 0.759113i |
99.3 | 0.939693 | + | 0.342020i | 0.00175394 | + | 0.00994711i | 0.766044 | + | 0.642788i | −2.36676 | + | 1.98595i | −0.00175394 | + | 0.00994711i | −0.500000 | + | 0.866025i | 0.500000 | + | 0.866025i | 2.81898 | − | 1.02603i | −2.90326 | + | 1.05670i |
99.4 | 0.939693 | + | 0.342020i | 0.481203 | + | 2.72904i | 0.766044 | + | 0.642788i | 1.03668 | − | 0.869879i | −0.481203 | + | 2.72904i | −0.500000 | + | 0.866025i | 0.500000 | + | 0.866025i | −4.39700 | + | 1.60038i | 1.27168 | − | 0.462853i |
169.1 | −0.173648 | + | 0.984808i | −2.24978 | − | 1.88779i | −0.939693 | − | 0.342020i | 0.157758 | − | 0.0574193i | 2.24978 | − | 1.88779i | −0.500000 | − | 0.866025i | 0.500000 | − | 0.866025i | 0.976815 | + | 5.53979i | 0.0291525 | + | 0.165332i |
169.2 | −0.173648 | + | 0.984808i | −0.587692 | − | 0.493132i | −0.939693 | − | 0.342020i | −2.10570 | + | 0.766411i | 0.587692 | − | 0.493132i | −0.500000 | − | 0.866025i | 0.500000 | − | 0.866025i | −0.418742 | − | 2.37480i | −0.389117 | − | 2.20679i |
169.3 | −0.173648 | + | 0.984808i | 0.0872325 | + | 0.0731967i | −0.939693 | − | 0.342020i | 3.51739 | − | 1.28022i | −0.0872325 | + | 0.0731967i | −0.500000 | − | 0.866025i | 0.500000 | − | 0.866025i | −0.518693 | − | 2.94165i | 0.649987 | + | 3.68626i |
169.4 | −0.173648 | + | 0.984808i | 1.98419 | + | 1.66494i | −0.939693 | − | 0.342020i | −3.62248 | + | 1.31848i | −1.98419 | + | 1.66494i | −0.500000 | − | 0.866025i | 0.500000 | − | 0.866025i | 0.644068 | + | 3.65269i | −0.669408 | − | 3.79640i |
225.1 | −0.766044 | − | 0.642788i | −2.11749 | + | 0.770704i | 0.173648 | + | 0.984808i | 0.208129 | − | 1.18036i | 2.11749 | + | 0.770704i | −0.500000 | − | 0.866025i | 0.500000 | − | 0.866025i | 1.59165 | − | 1.33555i | −0.918156 | + | 0.770424i |
225.2 | −0.766044 | − | 0.642788i | −1.83827 | + | 0.669077i | 0.173648 | + | 0.984808i | −0.413853 | + | 2.34708i | 1.83827 | + | 0.669077i | −0.500000 | − | 0.866025i | 0.500000 | − | 0.866025i | 0.633454 | − | 0.531531i | 1.82570 | − | 1.53195i |
225.3 | −0.766044 | − | 0.642788i | 2.09366 | − | 0.762029i | 0.173648 | + | 0.984808i | 0.535985 | − | 3.03972i | −2.09366 | − | 0.762029i | −0.500000 | − | 0.866025i | 0.500000 | − | 0.866025i | 1.50458 | − | 1.26249i | −2.36448 | + | 1.98404i |
225.4 | −0.766044 | − | 0.642788i | 2.80180 | − | 1.01977i | 0.173648 | + | 0.984808i | −0.749009 | + | 4.24784i | −2.80180 | − | 1.01977i | −0.500000 | − | 0.866025i | 0.500000 | − | 0.866025i | 4.51201 | − | 3.78603i | 3.30423 | − | 2.77258i |
See all 24 embeddings |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
19.e | even | 9 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 266.2.u.d | ✓ | 24 |
19.e | even | 9 | 1 | inner | 266.2.u.d | ✓ | 24 |
19.e | even | 9 | 1 | 5054.2.a.bl | 12 | ||
19.f | odd | 18 | 1 | 5054.2.a.bm | 12 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
266.2.u.d | ✓ | 24 | 1.a | even | 1 | 1 | trivial |
266.2.u.d | ✓ | 24 | 19.e | even | 9 | 1 | inner |
5054.2.a.bl | 12 | 19.e | even | 9 | 1 | ||
5054.2.a.bm | 12 | 19.f | odd | 18 | 1 |
Hecke kernels
This newform subspace can be constructed as the kernel of the linear operator \( T_{3}^{24} - 3 T_{3}^{22} - 13 T_{3}^{21} - 15 T_{3}^{20} + 69 T_{3}^{19} + 722 T_{3}^{18} - 15 T_{3}^{17} + \cdots + 1 \) acting on \(S_{2}^{\mathrm{new}}(266, [\chi])\).