Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [156,2,Mod(23,156)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(156, base_ring=CyclotomicField(6))
chi = DirichletCharacter(H, H._module([3, 3, 5]))
N = Newforms(chi, 2, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("156.23");
S:= CuspForms(chi, 2);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 156 = 2^{2} \cdot 3 \cdot 13 \) |
Weight: | \( k \) | \(=\) | \( 2 \) |
Character orbit: | \([\chi]\) | \(=\) | 156.r (of order \(6\), 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: | \(1.24566627153\) |
Analytic rank: | \(0\) |
Dimension: | \(40\) |
Relative dimension: | \(20\) over \(\Q(\zeta_{6})\) |
Twist minimal: | yes |
Sato-Tate group: | $\mathrm{SU}(2)[C_{6}]$ |
$q$-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 | −1.41341 | − | 0.0475771i | −1.73176 | − | 0.0318611i | 1.99547 | + | 0.134492i | −0.439505 | 2.44617 | + | 0.127425i | −0.124685 | + | 0.215961i | −2.81403 | − | 0.285032i | 2.99797 | + | 0.110351i | 0.621202 | + | 0.0209104i | ||
23.2 | −1.33472 | + | 0.467473i | 0.255646 | + | 1.71308i | 1.56294 | − | 1.24789i | 2.71779 | −1.14203 | − | 2.16697i | 2.23503 | − | 3.87119i | −1.50272 | + | 2.39621i | −2.86929 | + | 0.875884i | −3.62748 | + | 1.27049i | ||
23.3 | −1.25324 | − | 0.655280i | −0.185336 | + | 1.72211i | 1.14122 | + | 1.64245i | −2.19674 | 1.36073 | − | 2.03676i | −0.506035 | + | 0.876478i | −0.353954 | − | 2.80619i | −2.93130 | − | 0.638335i | 2.75304 | + | 1.43948i | ||
23.4 | −1.07220 | + | 0.922162i | 1.35575 | + | 1.07794i | 0.299235 | − | 1.97749i | −2.71779 | −2.44767 | + | 0.0944544i | −2.23503 | + | 3.87119i | 1.50272 | + | 2.39621i | 0.676108 | + | 2.92282i | 2.91402 | − | 2.50624i | ||
23.5 | −1.06718 | − | 0.927975i | −0.666612 | − | 1.59863i | 0.277727 | + | 1.98062i | 2.96696 | −0.772099 | + | 2.32462i | 1.62713 | − | 2.81828i | 1.54158 | − | 2.37140i | −2.11126 | + | 2.13134i | −3.16626 | − | 2.75326i | ||
23.6 | −0.953806 | − | 1.04415i | 1.72739 | + | 0.126961i | −0.180510 | + | 1.99184i | −0.889920 | −1.51503 | − | 1.92476i | 1.15562 | − | 2.00159i | 2.25195 | − | 1.71135i | 2.96776 | + | 0.438624i | 0.848811 | + | 0.929213i | ||
23.7 | −0.665504 | + | 1.24784i | 0.838286 | − | 1.51568i | −1.11421 | − | 1.66088i | 0.439505 | 1.33344 | + | 2.05474i | 0.124685 | − | 0.215961i | 2.81403 | − | 0.285032i | −1.59455 | − | 2.54114i | −0.292492 | + | 0.548432i | ||
23.8 | −0.427360 | − | 1.34810i | −1.72739 | − | 0.126961i | −1.63473 | + | 1.15224i | −0.889920 | 0.567062 | + | 2.38295i | −1.15562 | + | 2.00159i | 2.25195 | + | 1.71135i | 2.96776 | + | 0.438624i | 0.380316 | + | 1.19970i | ||
23.9 | −0.270062 | − | 1.38819i | 0.666612 | + | 1.59863i | −1.85413 | + | 0.749793i | 2.96696 | 2.03918 | − | 1.35711i | −1.62713 | + | 2.81828i | 1.54158 | + | 2.37140i | −2.11126 | + | 2.13134i | −0.801262 | − | 4.11870i | ||
23.10 | −0.0591302 | + | 1.41298i | 1.58406 | + | 0.700548i | −1.99301 | − | 0.167099i | 2.19674 | −1.08352 | + | 2.19681i | 0.506035 | − | 0.876478i | 0.353954 | − | 2.80619i | 2.01847 | + | 2.21941i | −0.129894 | + | 3.10394i | ||
23.11 | 0.0591302 | − | 1.41298i | 0.185336 | − | 1.72211i | −1.99301 | − | 0.167099i | −2.19674 | −2.42234 | − | 0.363703i | 0.506035 | − | 0.876478i | −0.353954 | + | 2.80619i | −2.93130 | − | 0.638335i | −0.129894 | + | 3.10394i | ||
23.12 | 0.270062 | + | 1.38819i | −1.05115 | − | 1.37662i | −1.85413 | + | 0.749793i | −2.96696 | 1.62713 | − | 1.83097i | −1.62713 | + | 2.81828i | −1.54158 | − | 2.37140i | −0.790163 | + | 2.89407i | −0.801262 | − | 4.11870i | ||
23.13 | 0.427360 | + | 1.34810i | −0.753744 | + | 1.55945i | −1.63473 | + | 1.15224i | 0.889920 | −2.42440 | − | 0.349674i | −1.15562 | + | 2.00159i | −2.25195 | − | 1.71135i | −1.86374 | − | 2.35084i | 0.380316 | + | 1.19970i | ||
23.14 | 0.665504 | − | 1.24784i | 1.73176 | + | 0.0318611i | −1.11421 | − | 1.66088i | −0.439505 | 1.19225 | − | 2.13975i | 0.124685 | − | 0.215961i | −2.81403 | + | 0.285032i | 2.99797 | + | 0.110351i | −0.292492 | + | 0.548432i | ||
23.15 | 0.953806 | + | 1.04415i | 0.753744 | − | 1.55945i | −0.180510 | + | 1.99184i | 0.889920 | 2.34722 | − | 0.700384i | 1.15562 | − | 2.00159i | −2.25195 | + | 1.71135i | −1.86374 | − | 2.35084i | 0.848811 | + | 0.929213i | ||
23.16 | 1.06718 | + | 0.927975i | 1.05115 | + | 1.37662i | 0.277727 | + | 1.98062i | −2.96696 | −0.155705 | + | 2.44454i | 1.62713 | − | 2.81828i | −1.54158 | + | 2.37140i | −0.790163 | + | 2.89407i | −3.16626 | − | 2.75326i | ||
23.17 | 1.07220 | − | 0.922162i | −0.255646 | − | 1.71308i | 0.299235 | − | 1.97749i | 2.71779 | −1.85384 | − | 1.60102i | −2.23503 | + | 3.87119i | −1.50272 | − | 2.39621i | −2.86929 | + | 0.875884i | 2.91402 | − | 2.50624i | ||
23.18 | 1.25324 | + | 0.655280i | −1.58406 | − | 0.700548i | 1.14122 | + | 1.64245i | 2.19674 | −1.52615 | − | 1.91595i | −0.506035 | + | 0.876478i | 0.353954 | + | 2.80619i | 2.01847 | + | 2.21941i | 2.75304 | + | 1.43948i | ||
23.19 | 1.33472 | − | 0.467473i | −1.35575 | − | 1.07794i | 1.56294 | − | 1.24789i | −2.71779 | −2.31345 | − | 0.804963i | 2.23503 | − | 3.87119i | 1.50272 | − | 2.39621i | 0.676108 | + | 2.92282i | −3.62748 | + | 1.27049i | ||
23.20 | 1.41341 | + | 0.0475771i | −0.838286 | + | 1.51568i | 1.99547 | + | 0.134492i | 0.439505 | −1.25696 | + | 2.10239i | −0.124685 | + | 0.215961i | 2.81403 | + | 0.285032i | −1.59455 | − | 2.54114i | 0.621202 | + | 0.0209104i | ||
See all 40 embeddings |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
3.b | odd | 2 | 1 | inner |
4.b | odd | 2 | 1 | inner |
12.b | even | 2 | 1 | inner |
13.e | even | 6 | 1 | inner |
39.h | odd | 6 | 1 | inner |
52.i | odd | 6 | 1 | inner |
156.r | even | 6 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 156.2.r.c | ✓ | 40 |
3.b | odd | 2 | 1 | inner | 156.2.r.c | ✓ | 40 |
4.b | odd | 2 | 1 | inner | 156.2.r.c | ✓ | 40 |
12.b | even | 2 | 1 | inner | 156.2.r.c | ✓ | 40 |
13.e | even | 6 | 1 | inner | 156.2.r.c | ✓ | 40 |
39.h | odd | 6 | 1 | inner | 156.2.r.c | ✓ | 40 |
52.i | odd | 6 | 1 | inner | 156.2.r.c | ✓ | 40 |
156.r | even | 6 | 1 | inner | 156.2.r.c | ✓ | 40 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
156.2.r.c | ✓ | 40 | 1.a | even | 1 | 1 | trivial |
156.2.r.c | ✓ | 40 | 3.b | odd | 2 | 1 | inner |
156.2.r.c | ✓ | 40 | 4.b | odd | 2 | 1 | inner |
156.2.r.c | ✓ | 40 | 12.b | even | 2 | 1 | inner |
156.2.r.c | ✓ | 40 | 13.e | even | 6 | 1 | inner |
156.2.r.c | ✓ | 40 | 39.h | odd | 6 | 1 | inner |
156.2.r.c | ✓ | 40 | 52.i | odd | 6 | 1 | inner |
156.2.r.c | ✓ | 40 | 156.r | even | 6 | 1 | inner |
Hecke kernels
This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(156, [\chi])\):
\( T_{5}^{10} - 22T_{5}^{8} + 164T_{5}^{6} - 458T_{5}^{4} + 331T_{5}^{2} - 48 \) |
\( T_{7}^{20} + 37 T_{7}^{18} + 955 T_{7}^{16} + 12238 T_{7}^{14} + 113164 T_{7}^{12} + 544984 T_{7}^{10} + \cdots + 5184 \) |