Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [1368,2,Mod(685,1368)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(1368, base_ring=CyclotomicField(2))
chi = DirichletCharacter(H, H._module([0, 1, 0, 0]))
N = Newforms(chi, 2, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("1368.685");
S:= CuspForms(chi, 2);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 1368 = 2^{3} \cdot 3^{2} \cdot 19 \) |
Weight: | \( k \) | \(=\) | \( 2 \) |
Character orbit: | \([\chi]\) | \(=\) | 1368.g (of order \(2\), degree \(1\), 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: | \(10.9235349965\) |
Analytic rank: | \(0\) |
Dimension: | \(36\) |
Twist minimal: | yes |
Sato-Tate group: | $\mathrm{SU}(2)[C_{2}]$ |
$q$-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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
685.1 | −1.41062 | − | 0.100750i | 0 | 1.97970 | + | 0.284241i | − | 1.67412i | 0 | −1.51494 | −2.76397 | − | 0.600411i | 0 | −0.168669 | + | 2.36155i | |||||||||
685.2 | −1.41062 | + | 0.100750i | 0 | 1.97970 | − | 0.284241i | 1.67412i | 0 | −1.51494 | −2.76397 | + | 0.600411i | 0 | −0.168669 | − | 2.36155i | ||||||||||
685.3 | −1.39336 | − | 0.241964i | 0 | 1.88291 | + | 0.674286i | − | 2.43078i | 0 | 3.63857 | −2.46041 | − | 1.39512i | 0 | −0.588160 | + | 3.38695i | |||||||||
685.4 | −1.39336 | + | 0.241964i | 0 | 1.88291 | − | 0.674286i | 2.43078i | 0 | 3.63857 | −2.46041 | + | 1.39512i | 0 | −0.588160 | − | 3.38695i | ||||||||||
685.5 | −1.21912 | − | 0.716763i | 0 | 0.972500 | + | 1.74764i | 1.33114i | 0 | −0.925029 | 0.0670504 | − | 2.82763i | 0 | 0.954111 | − | 1.62282i | ||||||||||
685.6 | −1.21912 | + | 0.716763i | 0 | 0.972500 | − | 1.74764i | − | 1.33114i | 0 | −0.925029 | 0.0670504 | + | 2.82763i | 0 | 0.954111 | + | 1.62282i | |||||||||
685.7 | −1.18397 | − | 0.773451i | 0 | 0.803547 | + | 1.83148i | 2.06615i | 0 | −3.95479 | 0.465187 | − | 2.78991i | 0 | 1.59806 | − | 2.44625i | ||||||||||
685.8 | −1.18397 | + | 0.773451i | 0 | 0.803547 | − | 1.83148i | − | 2.06615i | 0 | −3.95479 | 0.465187 | + | 2.78991i | 0 | 1.59806 | + | 2.44625i | |||||||||
685.9 | −1.11141 | − | 0.874513i | 0 | 0.470455 | + | 1.94388i | − | 2.65611i | 0 | 1.28466 | 1.17708 | − | 2.57186i | 0 | −2.32280 | + | 2.95202i | |||||||||
685.10 | −1.11141 | + | 0.874513i | 0 | 0.470455 | − | 1.94388i | 2.65611i | 0 | 1.28466 | 1.17708 | + | 2.57186i | 0 | −2.32280 | − | 2.95202i | ||||||||||
685.11 | −0.735397 | − | 1.20797i | 0 | −0.918383 | + | 1.77667i | 0.364416i | 0 | 4.21282 | 2.82155 | − | 0.197182i | 0 | 0.440203 | − | 0.267990i | ||||||||||
685.12 | −0.735397 | + | 1.20797i | 0 | −0.918383 | − | 1.77667i | − | 0.364416i | 0 | 4.21282 | 2.82155 | + | 0.197182i | 0 | 0.440203 | + | 0.267990i | |||||||||
685.13 | −0.727952 | − | 1.21247i | 0 | −0.940171 | + | 1.76524i | − | 3.45115i | 0 | −4.25855 | 2.82470 | − | 0.145082i | 0 | −4.18442 | + | 2.51227i | |||||||||
685.14 | −0.727952 | + | 1.21247i | 0 | −0.940171 | − | 1.76524i | 3.45115i | 0 | −4.25855 | 2.82470 | + | 0.145082i | 0 | −4.18442 | − | 2.51227i | ||||||||||
685.15 | −0.591826 | − | 1.28442i | 0 | −1.29948 | + | 1.52031i | 4.21648i | 0 | 0.835621 | 2.72179 | + | 0.769327i | 0 | 5.41574 | − | 2.49542i | ||||||||||
685.16 | −0.591826 | + | 1.28442i | 0 | −1.29948 | − | 1.52031i | − | 4.21648i | 0 | 0.835621 | 2.72179 | − | 0.769327i | 0 | 5.41574 | + | 2.49542i | |||||||||
685.17 | −0.156412 | − | 1.40554i | 0 | −1.95107 | + | 0.439685i | 0.608970i | 0 | −1.31836 | 0.923164 | + | 2.67353i | 0 | 0.855931 | − | 0.0952501i | ||||||||||
685.18 | −0.156412 | + | 1.40554i | 0 | −1.95107 | − | 0.439685i | − | 0.608970i | 0 | −1.31836 | 0.923164 | − | 2.67353i | 0 | 0.855931 | + | 0.0952501i | |||||||||
685.19 | 0.156412 | − | 1.40554i | 0 | −1.95107 | − | 0.439685i | 0.608970i | 0 | −1.31836 | −0.923164 | + | 2.67353i | 0 | 0.855931 | + | 0.0952501i | ||||||||||
685.20 | 0.156412 | + | 1.40554i | 0 | −1.95107 | + | 0.439685i | − | 0.608970i | 0 | −1.31836 | −0.923164 | − | 2.67353i | 0 | 0.855931 | − | 0.0952501i | |||||||||
See all 36 embeddings |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
3.b | odd | 2 | 1 | inner |
8.b | even | 2 | 1 | inner |
24.h | odd | 2 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 1368.2.g.e | ✓ | 36 |
3.b | odd | 2 | 1 | inner | 1368.2.g.e | ✓ | 36 |
4.b | odd | 2 | 1 | 5472.2.g.e | 36 | ||
8.b | even | 2 | 1 | inner | 1368.2.g.e | ✓ | 36 |
8.d | odd | 2 | 1 | 5472.2.g.e | 36 | ||
12.b | even | 2 | 1 | 5472.2.g.e | 36 | ||
24.f | even | 2 | 1 | 5472.2.g.e | 36 | ||
24.h | odd | 2 | 1 | inner | 1368.2.g.e | ✓ | 36 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
1368.2.g.e | ✓ | 36 | 1.a | even | 1 | 1 | trivial |
1368.2.g.e | ✓ | 36 | 3.b | odd | 2 | 1 | inner |
1368.2.g.e | ✓ | 36 | 8.b | even | 2 | 1 | inner |
1368.2.g.e | ✓ | 36 | 24.h | odd | 2 | 1 | inner |
5472.2.g.e | 36 | 4.b | odd | 2 | 1 | ||
5472.2.g.e | 36 | 8.d | odd | 2 | 1 | ||
5472.2.g.e | 36 | 12.b | even | 2 | 1 | ||
5472.2.g.e | 36 | 24.f | even | 2 | 1 |
Hecke kernels
This newform subspace can be constructed as the kernel of the linear operator \( T_{5}^{18} + 52 T_{5}^{16} + 1066 T_{5}^{14} + 11220 T_{5}^{12} + 66025 T_{5}^{10} + 220192 T_{5}^{8} + \cdots + 9216 \) acting on \(S_{2}^{\mathrm{new}}(1368, [\chi])\).