Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [342,2,Mod(25,342)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(342, base_ring=CyclotomicField(18))
chi = DirichletCharacter(H, H._module([12, 14]))
N = Newforms(chi, 2, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("342.25");
S:= CuspForms(chi, 2);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 342 = 2 \cdot 3^{2} \cdot 19 \) |
Weight: | \( k \) | \(=\) | \( 2 \) |
Character orbit: | \([\chi]\) | \(=\) | 342.v (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: | \(2.73088374913\) |
Analytic rank: | \(0\) |
Dimension: | \(66\) |
Relative dimension: | \(11\) 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 | 0.173648 | + | 0.984808i | −1.72605 | + | 0.144004i | −0.939693 | + | 0.342020i | −2.96434 | + | 2.48737i | −0.441543 | − | 1.67483i | −0.227964 | − | 0.394845i | −0.500000 | − | 0.866025i | 2.95853 | − | 0.497118i | −2.96434 | − | 2.48737i |
25.2 | 0.173648 | + | 0.984808i | −1.59006 | − | 0.686802i | −0.939693 | + | 0.342020i | 0.283661 | − | 0.238020i | 0.400256 | − | 1.68517i | −0.412636 | − | 0.714706i | −0.500000 | − | 0.866025i | 2.05661 | + | 2.18412i | 0.283661 | + | 0.238020i |
25.3 | 0.173648 | + | 0.984808i | −1.29297 | + | 1.15249i | −0.939693 | + | 0.342020i | 1.18951 | − | 0.998114i | −1.35950 | − | 1.07320i | −2.27893 | − | 3.94722i | −0.500000 | − | 0.866025i | 0.343533 | − | 2.98027i | 1.18951 | + | 0.998114i |
25.4 | 0.173648 | + | 0.984808i | −0.387995 | − | 1.68803i | −0.939693 | + | 0.342020i | 2.67271 | − | 2.24267i | 1.59501 | − | 0.675224i | −0.502728 | − | 0.870751i | −0.500000 | − | 0.866025i | −2.69892 | + | 1.30990i | 2.67271 | + | 2.24267i |
25.5 | 0.173648 | + | 0.984808i | 0.134037 | + | 1.72686i | −0.939693 | + | 0.342020i | −0.830023 | + | 0.696472i | −1.67735 | + | 0.431866i | 1.00899 | + | 1.74762i | −0.500000 | − | 0.866025i | −2.96407 | + | 0.462925i | −0.830023 | − | 0.696472i |
25.6 | 0.173648 | + | 0.984808i | 0.291574 | + | 1.70733i | −0.939693 | + | 0.342020i | 3.36002 | − | 2.81939i | −1.63076 | + | 0.583620i | 0.393649 | + | 0.681819i | −0.500000 | − | 0.866025i | −2.82997 | + | 0.995628i | 3.36002 | + | 2.81939i |
25.7 | 0.173648 | + | 0.984808i | 0.382500 | − | 1.68929i | −0.939693 | + | 0.342020i | −0.697629 | + | 0.585380i | 1.73004 | + | 0.0833469i | 2.20765 | + | 3.82376i | −0.500000 | − | 0.866025i | −2.70739 | − | 1.29230i | −0.697629 | − | 0.585380i |
25.8 | 0.173648 | + | 0.984808i | 0.484504 | − | 1.66291i | −0.939693 | + | 0.342020i | −2.67378 | + | 2.24356i | 1.72178 | + | 0.188382i | −1.47707 | − | 2.55835i | −0.500000 | − | 0.866025i | −2.53051 | − | 1.61137i | −2.67378 | − | 2.24356i |
25.9 | 0.173648 | + | 0.984808i | 1.52271 | + | 0.825445i | −0.939693 | + | 0.342020i | −2.26946 | + | 1.90431i | −0.548489 | + | 1.64291i | 0.134441 | + | 0.232858i | −0.500000 | − | 0.866025i | 1.63728 | + | 2.51382i | −2.26946 | − | 1.90431i |
25.10 | 0.173648 | + | 0.984808i | 1.64462 | − | 0.543360i | −0.939693 | + | 0.342020i | 0.701134 | − | 0.588321i | 0.820690 | + | 1.52528i | −2.58015 | − | 4.46895i | −0.500000 | − | 0.866025i | 2.40952 | − | 1.78724i | 0.701134 | + | 0.588321i |
25.11 | 0.173648 | + | 0.984808i | 1.71079 | − | 0.270545i | −0.939693 | + | 0.342020i | 1.22819 | − | 1.03058i | 0.563511 | + | 1.63782i | 1.56110 | + | 2.70390i | −0.500000 | − | 0.866025i | 2.85361 | − | 0.925693i | 1.22819 | + | 1.03058i |
61.1 | 0.766044 | − | 0.642788i | −1.73123 | − | 0.0533094i | 0.173648 | − | 0.984808i | −1.61593 | − | 0.588149i | −1.36047 | + | 1.07198i | −0.482502 | − | 0.835719i | −0.500000 | − | 0.866025i | 2.99432 | + | 0.184582i | −1.61593 | + | 0.588149i |
61.2 | 0.766044 | − | 0.642788i | −1.61841 | − | 0.617060i | 0.173648 | − | 0.984808i | 3.13299 | + | 1.14031i | −1.63641 | + | 0.567596i | 1.45844 | + | 2.52610i | −0.500000 | − | 0.866025i | 2.23847 | + | 1.99731i | 3.13299 | − | 1.14031i |
61.3 | 0.766044 | − | 0.642788i | −1.43350 | + | 0.972152i | 0.173648 | − | 0.984808i | 1.62144 | + | 0.590157i | −0.473237 | + | 1.66615i | −2.04096 | − | 3.53505i | −0.500000 | − | 0.866025i | 1.10984 | − | 2.78716i | 1.62144 | − | 0.590157i |
61.4 | 0.766044 | − | 0.642788i | −0.472925 | + | 1.66624i | 0.173648 | − | 0.984808i | −3.63267 | − | 1.32219i | 0.708755 | + | 1.58040i | −0.204835 | − | 0.354784i | −0.500000 | − | 0.866025i | −2.55268 | − | 1.57601i | −3.63267 | + | 1.32219i |
61.5 | 0.766044 | − | 0.642788i | −0.0767973 | − | 1.73035i | 0.173648 | − | 0.984808i | −2.00790 | − | 0.730817i | −1.17108 | − | 1.27616i | −0.694843 | − | 1.20350i | −0.500000 | − | 0.866025i | −2.98820 | + | 0.265772i | −2.00790 | + | 0.730817i |
61.6 | 0.766044 | − | 0.642788i | 0.349550 | − | 1.69641i | 0.173648 | − | 0.984808i | 1.92444 | + | 0.700437i | −0.822662 | − | 1.52421i | 0.703408 | + | 1.21834i | −0.500000 | − | 0.866025i | −2.75563 | − | 1.18596i | 1.92444 | − | 0.700437i |
61.7 | 0.766044 | − | 0.642788i | 0.559405 | + | 1.63923i | 0.173648 | − | 0.984808i | −0.0414633 | − | 0.0150914i | 1.48220 | + | 0.896143i | 0.869695 | + | 1.50636i | −0.500000 | − | 0.866025i | −2.37413 | + | 1.83398i | −0.0414633 | + | 0.0150914i |
61.8 | 0.766044 | − | 0.642788i | 1.37860 | + | 1.04856i | 0.173648 | − | 0.984808i | 3.86138 | + | 1.40543i | 1.73007 | − | 0.0829034i | −2.11856 | − | 3.66945i | −0.500000 | − | 0.866025i | 0.801056 | + | 2.89107i | 3.86138 | − | 1.40543i |
61.9 | 0.766044 | − | 0.642788i | 1.38269 | − | 1.04315i | 0.173648 | − | 0.984808i | 0.474466 | + | 0.172691i | 0.388676 | − | 1.68788i | −0.414583 | − | 0.718079i | −0.500000 | − | 0.866025i | 0.823662 | − | 2.88472i | 0.474466 | − | 0.172691i |
See all 66 embeddings |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
171.v | even | 9 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 342.2.v.b | ✓ | 66 |
9.c | even | 3 | 1 | 342.2.w.b | yes | 66 | |
19.e | even | 9 | 1 | 342.2.w.b | yes | 66 | |
171.v | even | 9 | 1 | inner | 342.2.v.b | ✓ | 66 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
342.2.v.b | ✓ | 66 | 1.a | even | 1 | 1 | trivial |
342.2.v.b | ✓ | 66 | 171.v | even | 9 | 1 | inner |
342.2.w.b | yes | 66 | 9.c | even | 3 | 1 | |
342.2.w.b | yes | 66 | 19.e | even | 9 | 1 |
Hecke kernels
This newform subspace can be constructed as the kernel of the linear operator \( T_{5}^{66} + 6 T_{5}^{64} + 6 T_{5}^{63} + 15 T_{5}^{62} + 111 T_{5}^{61} + 7113 T_{5}^{60} + \cdots + 63651292286976 \) acting on \(S_{2}^{\mathrm{new}}(342, [\chi])\).