Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [418,2,Mod(23,418)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(418, base_ring=CyclotomicField(18))
chi = DirichletCharacter(H, H._module([0, 2]))
N = Newforms(chi, 2, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("418.23");
S:= CuspForms(chi, 2);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 418 = 2 \cdot 11 \cdot 19 \) |
Weight: | \( k \) | \(=\) | \( 2 \) |
Character orbit: | \([\chi]\) | \(=\) | 418.j (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: | \(3.33774680449\) |
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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
23.1 | −0.939693 | − | 0.342020i | −0.535511 | − | 3.03704i | 0.766044 | + | 0.642788i | 1.57922 | − | 1.32512i | −0.535511 | + | 3.03704i | 0.687863 | − | 1.19141i | −0.500000 | − | 0.866025i | −6.11774 | + | 2.22667i | −1.93720 | + | 0.705083i |
23.2 | −0.939693 | − | 0.342020i | −0.227689 | − | 1.29129i | 0.766044 | + | 0.642788i | −2.49024 | + | 2.08956i | −0.227689 | + | 1.29129i | −0.335404 | + | 0.580937i | −0.500000 | − | 0.866025i | 1.20349 | − | 0.438036i | 3.05474 | − | 1.11183i |
23.3 | −0.939693 | − | 0.342020i | 0.284478 | + | 1.61335i | 0.766044 | + | 0.642788i | −1.00519 | + | 0.843458i | 0.284478 | − | 1.61335i | −1.14094 | + | 1.97617i | −0.500000 | − | 0.866025i | 0.297093 | − | 0.108133i | 1.23305 | − | 0.448794i |
23.4 | −0.939693 | − | 0.342020i | 0.305074 | + | 1.73016i | 0.766044 | + | 0.642788i | −0.381914 | + | 0.320464i | 0.305074 | − | 1.73016i | 2.61483 | − | 4.52902i | −0.500000 | − | 0.866025i | −0.0813139 | + | 0.0295958i | 0.468487 | − | 0.170515i |
111.1 | 0.766044 | + | 0.642788i | −2.76892 | + | 1.00780i | 0.173648 | + | 0.984808i | −0.512823 | + | 2.90836i | −2.76892 | − | 1.00780i | 1.03903 | + | 1.79965i | −0.500000 | + | 0.866025i | 4.35310 | − | 3.65269i | −2.26231 | + | 1.89830i |
111.2 | 0.766044 | + | 0.642788i | −0.109155 | + | 0.0397291i | 0.173648 | + | 0.984808i | −0.0865725 | + | 0.490977i | −0.109155 | − | 0.0397291i | 1.14564 | + | 1.98431i | −0.500000 | + | 0.866025i | −2.28780 | + | 1.91969i | −0.381912 | + | 0.320462i |
111.3 | 0.766044 | + | 0.642788i | 1.75906 | − | 0.640246i | 0.173648 | + | 0.984808i | 0.663091 | − | 3.76058i | 1.75906 | + | 0.640246i | 1.48367 | + | 2.56979i | −0.500000 | + | 0.866025i | 0.386249 | − | 0.324101i | 2.92521 | − | 2.45454i |
111.4 | 0.766044 | + | 0.642788i | 2.05870 | − | 0.749307i | 0.173648 | + | 0.984808i | −0.584640 | + | 3.31566i | 2.05870 | + | 0.749307i | −0.728641 | − | 1.26204i | −0.500000 | + | 0.866025i | 1.37867 | − | 1.15684i | −2.57912 | + | 2.16414i |
177.1 | 0.766044 | − | 0.642788i | −2.76892 | − | 1.00780i | 0.173648 | − | 0.984808i | −0.512823 | − | 2.90836i | −2.76892 | + | 1.00780i | 1.03903 | − | 1.79965i | −0.500000 | − | 0.866025i | 4.35310 | + | 3.65269i | −2.26231 | − | 1.89830i |
177.2 | 0.766044 | − | 0.642788i | −0.109155 | − | 0.0397291i | 0.173648 | − | 0.984808i | −0.0865725 | − | 0.490977i | −0.109155 | + | 0.0397291i | 1.14564 | − | 1.98431i | −0.500000 | − | 0.866025i | −2.28780 | − | 1.91969i | −0.381912 | − | 0.320462i |
177.3 | 0.766044 | − | 0.642788i | 1.75906 | + | 0.640246i | 0.173648 | − | 0.984808i | 0.663091 | + | 3.76058i | 1.75906 | − | 0.640246i | 1.48367 | − | 2.56979i | −0.500000 | − | 0.866025i | 0.386249 | + | 0.324101i | 2.92521 | + | 2.45454i |
177.4 | 0.766044 | − | 0.642788i | 2.05870 | + | 0.749307i | 0.173648 | − | 0.984808i | −0.584640 | − | 3.31566i | 2.05870 | − | 0.749307i | −0.728641 | + | 1.26204i | −0.500000 | − | 0.866025i | 1.37867 | + | 1.15684i | −2.57912 | − | 2.16414i |
199.1 | 0.173648 | + | 0.984808i | −2.53226 | + | 2.12482i | −0.939693 | + | 0.342020i | 0.0714030 | + | 0.0259886i | −2.53226 | − | 2.12482i | 2.39179 | − | 4.14270i | −0.500000 | − | 0.866025i | 1.37655 | − | 7.80678i | −0.0131947 | + | 0.0748311i |
199.2 | 0.173648 | + | 0.984808i | −0.584832 | + | 0.490732i | −0.939693 | + | 0.342020i | −2.08987 | − | 0.760650i | −0.584832 | − | 0.490732i | −0.0399488 | + | 0.0691933i | −0.500000 | − | 0.866025i | −0.419734 | + | 2.38043i | 0.386192 | − | 2.19020i |
199.3 | 0.173648 | + | 0.984808i | 0.697030 | − | 0.584878i | −0.939693 | + | 0.342020i | 3.92259 | + | 1.42771i | 0.697030 | + | 0.584878i | −2.18743 | + | 3.78873i | −0.500000 | − | 0.866025i | −0.377175 | + | 2.13907i | −0.724865 | + | 4.11092i |
199.4 | 0.173648 | + | 0.984808i | 1.65402 | − | 1.38789i | −0.939693 | + | 0.342020i | 0.914952 | + | 0.333015i | 1.65402 | + | 1.38789i | 1.06954 | − | 1.85250i | −0.500000 | − | 0.866025i | 0.288605 | − | 1.63676i | −0.169076 | + | 0.958879i |
309.1 | −0.939693 | + | 0.342020i | −0.535511 | + | 3.03704i | 0.766044 | − | 0.642788i | 1.57922 | + | 1.32512i | −0.535511 | − | 3.03704i | 0.687863 | + | 1.19141i | −0.500000 | + | 0.866025i | −6.11774 | − | 2.22667i | −1.93720 | − | 0.705083i |
309.2 | −0.939693 | + | 0.342020i | −0.227689 | + | 1.29129i | 0.766044 | − | 0.642788i | −2.49024 | − | 2.08956i | −0.227689 | − | 1.29129i | −0.335404 | − | 0.580937i | −0.500000 | + | 0.866025i | 1.20349 | + | 0.438036i | 3.05474 | + | 1.11183i |
309.3 | −0.939693 | + | 0.342020i | 0.284478 | − | 1.61335i | 0.766044 | − | 0.642788i | −1.00519 | − | 0.843458i | 0.284478 | + | 1.61335i | −1.14094 | − | 1.97617i | −0.500000 | + | 0.866025i | 0.297093 | + | 0.108133i | 1.23305 | + | 0.448794i |
309.4 | −0.939693 | + | 0.342020i | 0.305074 | − | 1.73016i | 0.766044 | − | 0.642788i | −0.381914 | − | 0.320464i | 0.305074 | + | 1.73016i | 2.61483 | + | 4.52902i | −0.500000 | + | 0.866025i | −0.0813139 | − | 0.0295958i | 0.468487 | + | 0.170515i |
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 | 418.2.j.b | ✓ | 24 |
19.e | even | 9 | 1 | inner | 418.2.j.b | ✓ | 24 |
19.e | even | 9 | 1 | 7942.2.a.bw | 12 | ||
19.f | odd | 18 | 1 | 7942.2.a.bs | 12 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
418.2.j.b | ✓ | 24 | 1.a | even | 1 | 1 | trivial |
418.2.j.b | ✓ | 24 | 19.e | even | 9 | 1 | inner |
7942.2.a.bs | 12 | 19.f | odd | 18 | 1 | ||
7942.2.a.bw | 12 | 19.e | even | 9 | 1 |
Hecke kernels
This newform subspace can be constructed as the kernel of the linear operator \( T_{3}^{24} - 13 T_{3}^{21} + 15 T_{3}^{20} - 63 T_{3}^{19} + 606 T_{3}^{18} - 1035 T_{3}^{17} + \cdots + 6561 \) acting on \(S_{2}^{\mathrm{new}}(418, [\chi])\).