Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [946,2,Mod(7,946)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(946, base_ring=CyclotomicField(30))
chi = DirichletCharacter(H, H._module([21, 25]))
N = Newforms(chi, 2, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("946.7");
S:= CuspForms(chi, 2);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 946 = 2 \cdot 11 \cdot 43 \) |
Weight: | \( k \) | \(=\) | \( 2 \) |
Character orbit: | \([\chi]\) | \(=\) | 946.t (of order \(30\), degree \(8\), 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: | \(7.55384803121\) |
Analytic rank: | \(0\) |
Dimension: | \(176\) |
Relative dimension: | \(22\) over \(\Q(\zeta_{30})\) |
Twist minimal: | yes |
Sato-Tate group: | $\mathrm{SU}(2)[C_{30}]$ |
$q$-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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
7.1 | −0.809017 | − | 0.587785i | −0.636377 | − | 2.99392i | 0.309017 | + | 0.951057i | −0.725164 | + | 1.62875i | −1.24494 | + | 2.79618i | −0.238910 | − | 0.0507819i | 0.309017 | − | 0.951057i | −5.81792 | + | 2.59031i | 1.54402 | − | 0.891442i |
7.2 | −0.809017 | − | 0.587785i | −0.617735 | − | 2.90621i | 0.309017 | + | 0.951057i | 1.20517 | − | 2.70685i | −1.20847 | + | 2.71427i | −3.61575 | − | 0.768551i | 0.309017 | − | 0.951057i | −5.32385 | + | 2.37033i | −2.56604 | + | 1.48151i |
7.3 | −0.809017 | − | 0.587785i | −0.599378 | − | 2.81985i | 0.309017 | + | 0.951057i | 0.127711 | − | 0.286844i | −1.17256 | + | 2.63361i | 3.11044 | + | 0.661144i | 0.309017 | − | 0.951057i | −4.85168 | + | 2.16011i | −0.271923 | + | 0.156995i |
7.4 | −0.809017 | − | 0.587785i | −0.499118 | − | 2.34817i | 0.309017 | + | 0.951057i | −1.19686 | + | 2.68819i | −0.976423 | + | 2.19308i | −4.21054 | − | 0.894978i | 0.309017 | − | 0.951057i | −2.52413 | + | 1.12382i | 2.54836 | − | 1.47129i |
7.5 | −0.809017 | − | 0.587785i | −0.455192 | − | 2.14151i | 0.309017 | + | 0.951057i | 1.26725 | − | 2.84630i | −0.890490 | + | 2.00007i | 1.93358 | + | 0.410995i | 0.309017 | − | 0.951057i | −1.63823 | + | 0.729387i | −2.69824 | + | 1.55783i |
7.6 | −0.809017 | − | 0.587785i | −0.290867 | − | 1.36842i | 0.309017 | + | 0.951057i | −1.00355 | + | 2.25400i | −0.569022 | + | 1.27804i | −2.35239 | − | 0.500016i | 0.309017 | − | 0.951057i | 0.952659 | − | 0.424151i | 2.13676 | − | 1.23366i |
7.7 | −0.809017 | − | 0.587785i | −0.274655 | − | 1.29215i | 0.309017 | + | 0.951057i | −0.122824 | + | 0.275867i | −0.537307 | + | 1.20681i | 2.26550 | + | 0.481546i | 0.309017 | − | 0.951057i | 1.14642 | − | 0.510417i | 0.261517 | − | 0.150987i |
7.8 | −0.809017 | − | 0.587785i | −0.198366 | − | 0.933241i | 0.309017 | + | 0.951057i | 0.694375 | − | 1.55959i | −0.388063 | + | 0.871604i | −2.29842 | − | 0.488545i | 0.309017 | − | 0.951057i | 1.90905 | − | 0.849963i | −1.47847 | + | 0.853593i |
7.9 | −0.809017 | − | 0.587785i | −0.154782 | − | 0.728191i | 0.309017 | + | 0.951057i | −0.915164 | + | 2.05549i | −0.302799 | + | 0.680098i | 0.349041 | + | 0.0741910i | 0.309017 | − | 0.951057i | 2.23433 | − | 0.994788i | 1.94857 | − | 1.12501i |
7.10 | −0.809017 | − | 0.587785i | −0.122515 | − | 0.576387i | 0.309017 | + | 0.951057i | −1.58246 | + | 3.55426i | −0.239675 | + | 0.538319i | 4.84535 | + | 1.02991i | 0.309017 | − | 0.951057i | 2.42342 | − | 1.07898i | 3.36938 | − | 1.94531i |
7.11 | −0.809017 | − | 0.587785i | −0.00732925 | − | 0.0344814i | 0.309017 | + | 0.951057i | 1.44488 | − | 3.24526i | −0.0143382 | + | 0.0322041i | 0.108803 | + | 0.0231267i | 0.309017 | − | 0.951057i | 2.73950 | − | 1.21970i | −3.07645 | + | 1.77619i |
7.12 | −0.809017 | − | 0.587785i | 0.0695351 | + | 0.327137i | 0.309017 | + | 0.951057i | 1.13525 | − | 2.54982i | 0.136031 | − | 0.305531i | 2.70230 | + | 0.574392i | 0.309017 | − | 0.951057i | 2.63845 | − | 1.17471i | −2.41718 | + | 1.39556i |
7.13 | −0.809017 | − | 0.587785i | 0.0791260 | + | 0.372258i | 0.309017 | + | 0.951057i | 0.505501 | − | 1.13537i | 0.154794 | − | 0.347673i | −3.40513 | − | 0.723782i | 0.309017 | − | 0.951057i | 2.60832 | − | 1.16130i | −1.07631 | + | 0.621410i |
7.14 | −0.809017 | − | 0.587785i | 0.124160 | + | 0.584127i | 0.309017 | + | 0.951057i | −0.795552 | + | 1.78684i | 0.242894 | − | 0.545548i | 1.84422 | + | 0.392001i | 0.309017 | − | 0.951057i | 2.41485 | − | 1.07516i | 1.69389 | − | 0.977969i |
7.15 | −0.809017 | − | 0.587785i | 0.348414 | + | 1.63916i | 0.309017 | + | 0.951057i | −0.0366065 | + | 0.0822195i | 0.681600 | − | 1.53090i | −4.09051 | − | 0.869465i | 0.309017 | − | 0.951057i | 0.175192 | − | 0.0780004i | 0.0779427 | − | 0.0450002i |
7.16 | −0.809017 | − | 0.587785i | 0.378939 | + | 1.78277i | 0.309017 | + | 0.951057i | −1.75643 | + | 3.94500i | 0.741316 | − | 1.66502i | −2.93928 | − | 0.624763i | 0.309017 | − | 0.951057i | −0.294028 | + | 0.130910i | 3.73979 | − | 2.15917i |
7.17 | −0.809017 | − | 0.587785i | 0.406414 | + | 1.91203i | 0.309017 | + | 0.951057i | 0.762919 | − | 1.71354i | 0.795065 | − | 1.78575i | −2.76446 | − | 0.587604i | 0.309017 | − | 0.951057i | −0.750038 | + | 0.333938i | −1.62441 | + | 0.937854i |
7.18 | −0.809017 | − | 0.587785i | 0.408426 | + | 1.92149i | 0.309017 | + | 0.951057i | −0.341490 | + | 0.766999i | 0.799001 | − | 1.79459i | 4.50849 | + | 0.958309i | 0.309017 | − | 0.951057i | −0.784684 | + | 0.349364i | 0.727102 | − | 0.419793i |
7.19 | −0.809017 | − | 0.587785i | 0.509879 | + | 2.39879i | 0.309017 | + | 0.951057i | −1.24348 | + | 2.79289i | 0.997474 | − | 2.24036i | −0.500265 | − | 0.106335i | 0.309017 | − | 0.951057i | −2.75359 | + | 1.22598i | 2.64761 | − | 1.52860i |
7.20 | −0.809017 | − | 0.587785i | 0.565191 | + | 2.65902i | 0.309017 | + | 0.951057i | 1.63374 | − | 3.66945i | 1.10568 | − | 2.48340i | −2.00185 | − | 0.425507i | 0.309017 | − | 0.951057i | −4.01029 | + | 1.78550i | −3.47857 | + | 2.00835i |
See next 80 embeddings (of 176 total) |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
473.s | even | 30 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 946.2.t.a | ✓ | 176 |
11.d | odd | 10 | 1 | 946.2.t.b | yes | 176 | |
43.d | odd | 6 | 1 | 946.2.t.b | yes | 176 | |
473.s | even | 30 | 1 | inner | 946.2.t.a | ✓ | 176 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
946.2.t.a | ✓ | 176 | 1.a | even | 1 | 1 | trivial |
946.2.t.a | ✓ | 176 | 473.s | even | 30 | 1 | inner |
946.2.t.b | yes | 176 | 11.d | odd | 10 | 1 | |
946.2.t.b | yes | 176 | 43.d | odd | 6 | 1 |
Hecke kernels
This newform subspace can be constructed as the kernel of the linear operator \( T_{3}^{176} + 43 T_{3}^{174} + 40 T_{3}^{173} + 775 T_{3}^{172} + 1720 T_{3}^{171} + \cdots + 17\!\cdots\!41 \) acting on \(S_{2}^{\mathrm{new}}(946, [\chi])\).