Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [136,2,Mod(13,136)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(136, base_ring=CyclotomicField(4))
chi = DirichletCharacter(H, H._module([0, 2, 1]))
N = Newforms(chi, 2, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("136.13");
S:= CuspForms(chi, 2);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 136 = 2^{3} \cdot 17 \) |
Weight: | \( k \) | \(=\) | \( 2 \) |
Character orbit: | \([\chi]\) | \(=\) | 136.i (of order \(4\), degree \(2\), 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: | \(1.08596546749\) |
Analytic rank: | \(0\) |
Dimension: | \(24\) |
Relative dimension: | \(12\) over \(\Q(i)\) |
Twist minimal: | yes |
Sato-Tate group: | $\mathrm{SU}(2)[C_{4}]$ |
$q$-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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
13.1 | −1.40037 | + | 0.197414i | 1.80863 | − | 1.80863i | 1.92206 | − | 0.552904i | 0.797964 | − | 0.797964i | −2.17570 | + | 2.88980i | −0.453490 | + | 0.453490i | −2.58243 | + | 1.15371i | − | 3.54230i | −0.959914 | + | 1.27497i | |
13.2 | −1.38301 | − | 0.295438i | −1.22371 | + | 1.22371i | 1.82543 | + | 0.817188i | 1.56683 | − | 1.56683i | 2.05393 | − | 1.33087i | −2.62341 | + | 2.62341i | −2.28316 | − | 1.66948i | 0.00507325i | −2.62985 | + | 1.70404i | ||
13.3 | −1.06549 | + | 0.929913i | 0.504638 | − | 0.504638i | 0.270523 | − | 1.98162i | −2.91725 | + | 2.91725i | −0.0684155 | + | 1.00695i | −1.08595 | + | 1.08595i | 1.55450 | + | 2.36295i | 2.49068i | 0.395502 | − | 5.82108i | ||
13.4 | −0.668019 | − | 1.24650i | −0.600469 | + | 0.600469i | −1.10750 | + | 1.66536i | −1.35840 | + | 1.35840i | 1.14961 | + | 0.347358i | −1.77843 | + | 1.77843i | 2.81570 | + | 0.268003i | 2.27887i | 2.60069 | + | 0.785806i | ||
13.5 | −0.513367 | + | 1.31775i | 0.739113 | − | 0.739113i | −1.47291 | − | 1.35297i | 1.54400 | − | 1.54400i | 0.594527 | + | 1.35340i | 1.33694 | − | 1.33694i | 2.53902 | − | 1.24635i | 1.90743i | 1.24196 | + | 2.82723i | ||
13.6 | −0.176636 | − | 1.40314i | −2.01739 | + | 2.01739i | −1.93760 | + | 0.495689i | 2.48369 | − | 2.48369i | 3.18703 | + | 2.47434i | 2.60434 | − | 2.60434i | 1.03777 | + | 2.63117i | − | 5.13975i | −3.92368 | − | 3.04626i | |
13.7 | 0.176636 | − | 1.40314i | 2.01739 | − | 2.01739i | −1.93760 | − | 0.495689i | −2.48369 | + | 2.48369i | −2.47434 | − | 3.18703i | 2.60434 | − | 2.60434i | −1.03777 | + | 2.63117i | − | 5.13975i | 3.04626 | + | 3.92368i | |
13.8 | 0.513367 | + | 1.31775i | −0.739113 | + | 0.739113i | −1.47291 | + | 1.35297i | −1.54400 | + | 1.54400i | −1.35340 | − | 0.594527i | 1.33694 | − | 1.33694i | −2.53902 | − | 1.24635i | 1.90743i | −2.82723 | − | 1.24196i | ||
13.9 | 0.668019 | − | 1.24650i | 0.600469 | − | 0.600469i | −1.10750 | − | 1.66536i | 1.35840 | − | 1.35840i | −0.347358 | − | 1.14961i | −1.77843 | + | 1.77843i | −2.81570 | + | 0.268003i | 2.27887i | −0.785806 | − | 2.60069i | ||
13.10 | 1.06549 | + | 0.929913i | −0.504638 | + | 0.504638i | 0.270523 | + | 1.98162i | 2.91725 | − | 2.91725i | −1.00695 | + | 0.0684155i | −1.08595 | + | 1.08595i | −1.55450 | + | 2.36295i | 2.49068i | 5.82108 | − | 0.395502i | ||
13.11 | 1.38301 | − | 0.295438i | 1.22371 | − | 1.22371i | 1.82543 | − | 0.817188i | −1.56683 | + | 1.56683i | 1.33087 | − | 2.05393i | −2.62341 | + | 2.62341i | 2.28316 | − | 1.66948i | 0.00507325i | −1.70404 | + | 2.62985i | ||
13.12 | 1.40037 | + | 0.197414i | −1.80863 | + | 1.80863i | 1.92206 | + | 0.552904i | −0.797964 | + | 0.797964i | −2.88980 | + | 2.17570i | −0.453490 | + | 0.453490i | 2.58243 | + | 1.15371i | − | 3.54230i | −1.27497 | + | 0.959914i | |
21.1 | −1.40037 | − | 0.197414i | 1.80863 | + | 1.80863i | 1.92206 | + | 0.552904i | 0.797964 | + | 0.797964i | −2.17570 | − | 2.88980i | −0.453490 | − | 0.453490i | −2.58243 | − | 1.15371i | 3.54230i | −0.959914 | − | 1.27497i | ||
21.2 | −1.38301 | + | 0.295438i | −1.22371 | − | 1.22371i | 1.82543 | − | 0.817188i | 1.56683 | + | 1.56683i | 2.05393 | + | 1.33087i | −2.62341 | − | 2.62341i | −2.28316 | + | 1.66948i | − | 0.00507325i | −2.62985 | − | 1.70404i | |
21.3 | −1.06549 | − | 0.929913i | 0.504638 | + | 0.504638i | 0.270523 | + | 1.98162i | −2.91725 | − | 2.91725i | −0.0684155 | − | 1.00695i | −1.08595 | − | 1.08595i | 1.55450 | − | 2.36295i | − | 2.49068i | 0.395502 | + | 5.82108i | |
21.4 | −0.668019 | + | 1.24650i | −0.600469 | − | 0.600469i | −1.10750 | − | 1.66536i | −1.35840 | − | 1.35840i | 1.14961 | − | 0.347358i | −1.77843 | − | 1.77843i | 2.81570 | − | 0.268003i | − | 2.27887i | 2.60069 | − | 0.785806i | |
21.5 | −0.513367 | − | 1.31775i | 0.739113 | + | 0.739113i | −1.47291 | + | 1.35297i | 1.54400 | + | 1.54400i | 0.594527 | − | 1.35340i | 1.33694 | + | 1.33694i | 2.53902 | + | 1.24635i | − | 1.90743i | 1.24196 | − | 2.82723i | |
21.6 | −0.176636 | + | 1.40314i | −2.01739 | − | 2.01739i | −1.93760 | − | 0.495689i | 2.48369 | + | 2.48369i | 3.18703 | − | 2.47434i | 2.60434 | + | 2.60434i | 1.03777 | − | 2.63117i | 5.13975i | −3.92368 | + | 3.04626i | ||
21.7 | 0.176636 | + | 1.40314i | 2.01739 | + | 2.01739i | −1.93760 | + | 0.495689i | −2.48369 | − | 2.48369i | −2.47434 | + | 3.18703i | 2.60434 | + | 2.60434i | −1.03777 | − | 2.63117i | 5.13975i | 3.04626 | − | 3.92368i | ||
21.8 | 0.513367 | − | 1.31775i | −0.739113 | − | 0.739113i | −1.47291 | − | 1.35297i | −1.54400 | − | 1.54400i | −1.35340 | + | 0.594527i | 1.33694 | + | 1.33694i | −2.53902 | + | 1.24635i | − | 1.90743i | −2.82723 | + | 1.24196i | |
See all 24 embeddings |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
8.b | even | 2 | 1 | inner |
17.c | even | 4 | 1 | inner |
136.i | even | 4 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 136.2.i.b | ✓ | 24 |
4.b | odd | 2 | 1 | 544.2.m.b | 24 | ||
8.b | even | 2 | 1 | inner | 136.2.i.b | ✓ | 24 |
8.d | odd | 2 | 1 | 544.2.m.b | 24 | ||
17.c | even | 4 | 1 | inner | 136.2.i.b | ✓ | 24 |
68.f | odd | 4 | 1 | 544.2.m.b | 24 | ||
136.i | even | 4 | 1 | inner | 136.2.i.b | ✓ | 24 |
136.j | odd | 4 | 1 | 544.2.m.b | 24 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
136.2.i.b | ✓ | 24 | 1.a | even | 1 | 1 | trivial |
136.2.i.b | ✓ | 24 | 8.b | even | 2 | 1 | inner |
136.2.i.b | ✓ | 24 | 17.c | even | 4 | 1 | inner |
136.2.i.b | ✓ | 24 | 136.i | even | 4 | 1 | inner |
544.2.m.b | 24 | 4.b | odd | 2 | 1 | ||
544.2.m.b | 24 | 8.d | odd | 2 | 1 | ||
544.2.m.b | 24 | 68.f | odd | 4 | 1 | ||
544.2.m.b | 24 | 136.j | odd | 4 | 1 |
Hecke kernels
This newform subspace can be constructed as the kernel of the linear operator \( T_{3}^{24} + 120T_{3}^{20} + 4048T_{3}^{16} + 33088T_{3}^{12} + 54272T_{3}^{8} + 27712T_{3}^{4} + 4096 \) acting on \(S_{2}^{\mathrm{new}}(136, [\chi])\).