Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [847,2,Mod(148,847)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(847, base_ring=CyclotomicField(10))
chi = DirichletCharacter(H, H._module([0, 4]))
N = Newforms(chi, 2, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("847.148");
S:= CuspForms(chi, 2);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 847 = 7 \cdot 11^{2} \) |
Weight: | \( k \) | \(=\) | \( 2 \) |
Character orbit: | \([\chi]\) | \(=\) | 847.f (of order \(5\), degree \(4\), not 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: | \(6.76332905120\) |
Analytic rank: | \(0\) |
Dimension: | \(24\) |
Relative dimension: | \(6\) over \(\Q(\zeta_{5})\) |
Twist minimal: | yes |
Sato-Tate group: | $\mathrm{SU}(2)[C_{5}]$ |
$q$-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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
148.1 | −0.428283 | − | 1.31812i | 0.0990877 | + | 0.0719914i | 0.0640220 | − | 0.0465147i | −0.0411006 | + | 0.126495i | 0.0524557 | − | 0.161442i | −0.809017 | + | 0.587785i | −2.33125 | − | 1.69375i | −0.922415 | − | 2.83890i | 0.184338 | ||
148.2 | −0.254493 | − | 0.783248i | 0.777181 | + | 0.564655i | 1.06932 | − | 0.776908i | 0.922616 | − | 2.83952i | 0.244478 | − | 0.752427i | −0.809017 | + | 0.587785i | −2.21319 | − | 1.60798i | −0.641876 | − | 1.97549i | −2.45885 | ||
148.3 | 0.0371933 | + | 0.114469i | −2.23923 | − | 1.62690i | 1.60631 | − | 1.16706i | −0.867882 | + | 2.67107i | 0.102945 | − | 0.316832i | −0.809017 | + | 0.587785i | 0.388082 | + | 0.281958i | 1.44031 | + | 4.43281i | −0.338034 | ||
148.4 | 0.394480 | + | 1.21408i | 2.08406 | + | 1.51415i | 0.299647 | − | 0.217706i | −1.26432 | + | 3.89119i | −1.01619 | + | 3.12752i | −0.809017 | + | 0.587785i | 2.44804 | + | 1.77861i | 1.12357 | + | 3.45799i | −5.22298 | ||
148.5 | 0.651837 | + | 2.00615i | −1.37413 | − | 0.998361i | −1.98170 | + | 1.43979i | 0.152157 | − | 0.468292i | 1.10715 | − | 3.40747i | −0.809017 | + | 0.587785i | −0.767119 | − | 0.557345i | −0.0355535 | − | 0.109422i | 1.03864 | ||
148.6 | 0.835334 | + | 2.57089i | 2.27106 | + | 1.65003i | −4.29367 | + | 3.11953i | −0.137535 | + | 0.423289i | −2.34494 | + | 7.21698i | −0.809017 | + | 0.587785i | −7.23277 | − | 5.25492i | 1.50810 | + | 4.64146i | −1.20312 | ||
323.1 | −2.18693 | − | 1.58890i | −0.867470 | + | 2.66980i | 1.64004 | + | 5.04751i | 0.360071 | − | 0.261607i | 6.13913 | − | 4.46034i | 0.309017 | + | 0.951057i | 2.76267 | − | 8.50263i | −3.94826 | − | 2.86858i | −1.20312 | ||
323.2 | −1.70653 | − | 1.23987i | 0.524869 | − | 1.61538i | 0.756943 | + | 2.32963i | −0.398353 | + | 0.289420i | −2.89857 | + | 2.10593i | 0.309017 | + | 0.951057i | 0.293014 | − | 0.901803i | 0.0930802 | + | 0.0676268i | 1.03864 | ||
323.3 | −1.03276 | − | 0.750346i | −0.796038 | + | 2.44995i | −0.114455 | − | 0.352256i | 3.31004 | − | 2.40489i | 2.66043 | − | 1.93292i | 0.309017 | + | 0.951057i | −0.935069 | + | 2.87785i | −2.94155 | − | 2.13716i | −5.22298 | ||
323.4 | −0.0973732 | − | 0.0707458i | 0.855309 | − | 2.63237i | −0.613557 | − | 1.88834i | 2.27214 | − | 1.65081i | −0.269513 | + | 0.195813i | 0.309017 | + | 0.951057i | −0.148234 | + | 0.456218i | −3.77078 | − | 2.73963i | −0.338034 | ||
323.5 | 0.666271 | + | 0.484074i | −0.296857 | + | 0.913631i | −0.408445 | − | 1.25706i | −2.41544 | + | 1.75492i | −0.640052 | + | 0.465025i | 0.309017 | + | 0.951057i | 0.845363 | − | 2.60176i | 1.68045 | + | 1.22092i | −2.45885 | ||
323.6 | 1.12126 | + | 0.814642i | −0.0378481 | + | 0.116485i | −0.0244542 | − | 0.0752624i | 0.107603 | − | 0.0781781i | −0.137331 | + | 0.0997767i | 0.309017 | + | 0.951057i | 0.890458 | − | 2.74055i | 2.41491 | + | 1.75454i | 0.184338 | ||
372.1 | −0.428283 | + | 1.31812i | 0.0990877 | − | 0.0719914i | 0.0640220 | + | 0.0465147i | −0.0411006 | − | 0.126495i | 0.0524557 | + | 0.161442i | −0.809017 | − | 0.587785i | −2.33125 | + | 1.69375i | −0.922415 | + | 2.83890i | 0.184338 | ||
372.2 | −0.254493 | + | 0.783248i | 0.777181 | − | 0.564655i | 1.06932 | + | 0.776908i | 0.922616 | + | 2.83952i | 0.244478 | + | 0.752427i | −0.809017 | − | 0.587785i | −2.21319 | + | 1.60798i | −0.641876 | + | 1.97549i | −2.45885 | ||
372.3 | 0.0371933 | − | 0.114469i | −2.23923 | + | 1.62690i | 1.60631 | + | 1.16706i | −0.867882 | − | 2.67107i | 0.102945 | + | 0.316832i | −0.809017 | − | 0.587785i | 0.388082 | − | 0.281958i | 1.44031 | − | 4.43281i | −0.338034 | ||
372.4 | 0.394480 | − | 1.21408i | 2.08406 | − | 1.51415i | 0.299647 | + | 0.217706i | −1.26432 | − | 3.89119i | −1.01619 | − | 3.12752i | −0.809017 | − | 0.587785i | 2.44804 | − | 1.77861i | 1.12357 | − | 3.45799i | −5.22298 | ||
372.5 | 0.651837 | − | 2.00615i | −1.37413 | + | 0.998361i | −1.98170 | − | 1.43979i | 0.152157 | + | 0.468292i | 1.10715 | + | 3.40747i | −0.809017 | − | 0.587785i | −0.767119 | + | 0.557345i | −0.0355535 | + | 0.109422i | 1.03864 | ||
372.6 | 0.835334 | − | 2.57089i | 2.27106 | − | 1.65003i | −4.29367 | − | 3.11953i | −0.137535 | − | 0.423289i | −2.34494 | − | 7.21698i | −0.809017 | − | 0.587785i | −7.23277 | + | 5.25492i | 1.50810 | − | 4.64146i | −1.20312 | ||
729.1 | −2.18693 | + | 1.58890i | −0.867470 | − | 2.66980i | 1.64004 | − | 5.04751i | 0.360071 | + | 0.261607i | 6.13913 | + | 4.46034i | 0.309017 | − | 0.951057i | 2.76267 | + | 8.50263i | −3.94826 | + | 2.86858i | −1.20312 | ||
729.2 | −1.70653 | + | 1.23987i | 0.524869 | + | 1.61538i | 0.756943 | − | 2.32963i | −0.398353 | − | 0.289420i | −2.89857 | − | 2.10593i | 0.309017 | − | 0.951057i | 0.293014 | + | 0.901803i | 0.0930802 | − | 0.0676268i | 1.03864 | ||
See all 24 embeddings |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
11.c | even | 5 | 3 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 847.2.f.y | 24 | |
11.b | odd | 2 | 1 | 847.2.f.z | 24 | ||
11.c | even | 5 | 1 | 847.2.a.n | yes | 6 | |
11.c | even | 5 | 3 | inner | 847.2.f.y | 24 | |
11.d | odd | 10 | 1 | 847.2.a.m | ✓ | 6 | |
11.d | odd | 10 | 3 | 847.2.f.z | 24 | ||
33.f | even | 10 | 1 | 7623.2.a.cs | 6 | ||
33.h | odd | 10 | 1 | 7623.2.a.cp | 6 | ||
77.j | odd | 10 | 1 | 5929.2.a.bm | 6 | ||
77.l | even | 10 | 1 | 5929.2.a.bj | 6 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
847.2.a.m | ✓ | 6 | 11.d | odd | 10 | 1 | |
847.2.a.n | yes | 6 | 11.c | even | 5 | 1 | |
847.2.f.y | 24 | 1.a | even | 1 | 1 | trivial | |
847.2.f.y | 24 | 11.c | even | 5 | 3 | inner | |
847.2.f.z | 24 | 11.b | odd | 2 | 1 | ||
847.2.f.z | 24 | 11.d | odd | 10 | 3 | ||
5929.2.a.bj | 6 | 77.l | even | 10 | 1 | ||
5929.2.a.bm | 6 | 77.j | odd | 10 | 1 | ||
7623.2.a.cp | 6 | 33.h | odd | 10 | 1 | ||
7623.2.a.cs | 6 | 33.f | even | 10 | 1 |
Hecke kernels
This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(847, [\chi])\):
\( T_{2}^{24} + 4 T_{2}^{23} + 16 T_{2}^{22} + 52 T_{2}^{21} + 164 T_{2}^{20} + 304 T_{2}^{19} + 687 T_{2}^{18} + \cdots + 1 \) |
\( T_{3}^{24} - 2 T_{3}^{23} + 15 T_{3}^{22} - 32 T_{3}^{21} + 164 T_{3}^{20} - 254 T_{3}^{19} + 1365 T_{3}^{18} + \cdots + 256 \) |
\( T_{13}^{24} + 4 T_{13}^{23} + 35 T_{13}^{22} + 144 T_{13}^{21} + 989 T_{13}^{20} + 1744 T_{13}^{19} + \cdots + 65536 \) |