Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [931,2,Mod(177,931)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(931, base_ring=CyclotomicField(18))
chi = DirichletCharacter(H, H._module([6, 14]))
N = Newforms(chi, 2, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("931.177");
S:= CuspForms(chi, 2);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 931 = 7^{2} \cdot 19 \) |
Weight: | \( k \) | \(=\) | \( 2 \) |
Character orbit: | \([\chi]\) | \(=\) | 931.v (of order \(9\), degree \(6\), 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: | \(7.43407242818\) |
Analytic rank: | \(0\) |
Dimension: | \(30\) |
Relative dimension: | \(5\) over \(\Q(\zeta_{9})\) |
Twist minimal: | no (minimal twist has level 133) |
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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
177.1 | −0.361926 | − | 2.05258i | −0.505259 | − | 2.86547i | −2.20273 | + | 0.801727i | 0.234951 | + | 0.0855151i | −5.69875 | + | 2.07417i | 0 | 0.358588 | + | 0.621093i | −5.13654 | + | 1.86955i | 0.0904922 | − | 0.513206i | ||
177.2 | −0.295006 | − | 1.67306i | 0.530064 | + | 3.00614i | −0.832714 | + | 0.303083i | 1.21755 | + | 0.443151i | 4.87308 | − | 1.77366i | 0 | −0.946138 | − | 1.63876i | −5.93684 | + | 2.16083i | 0.382235 | − | 2.16776i | ||
177.3 | 0.0498910 | + | 0.282946i | 0.383114 | + | 2.17275i | 1.80182 | − | 0.655807i | −3.29535 | − | 1.19941i | −0.595656 | + | 0.216801i | 0 | 0.562764 | + | 0.974735i | −1.75498 | + | 0.638759i | 0.174960 | − | 0.992247i | ||
177.4 | 0.105921 | + | 0.600708i | 0.0260769 | + | 0.147890i | 1.52975 | − | 0.556785i | 2.81231 | + | 1.02360i | −0.0860764 | + | 0.0313292i | 0 | 1.10647 | + | 1.91647i | 2.79789 | − | 1.01835i | −0.317000 | + | 1.79780i | ||
177.5 | 0.327471 | + | 1.85718i | −0.352744 | − | 2.00051i | −1.46250 | + | 0.532308i | −2.40915 | − | 0.876858i | 3.59980 | − | 1.31022i | 0 | 0.418312 | + | 0.724538i | −1.05853 | + | 0.385273i | 0.839558 | − | 4.76137i | ||
214.1 | −1.94839 | − | 1.63490i | 2.31234 | + | 1.94029i | 0.776054 | + | 4.40122i | 0.492064 | − | 2.79063i | −1.33319 | − | 7.56088i | 0 | 3.14003 | − | 5.43870i | 1.06128 | + | 6.01879i | −5.52113 | + | 4.63278i | ||
214.2 | −1.05191 | − | 0.882655i | −2.01845 | − | 1.69368i | −0.0198673 | − | 0.112673i | −0.0743456 | + | 0.421635i | 0.628286 | + | 3.56318i | 0 | −1.45172 | + | 2.51445i | 0.684638 | + | 3.88278i | 0.450363 | − | 0.377899i | ||
214.3 | −0.580759 | − | 0.487315i | 0.965676 | + | 0.810299i | −0.247491 | − | 1.40359i | −0.170576 | + | 0.967387i | −0.165955 | − | 0.941177i | 0 | −1.29838 | + | 2.24887i | −0.244998 | − | 1.38945i | 0.570486 | − | 0.478694i | ||
214.4 | 1.34511 | + | 1.12868i | 2.15616 | + | 1.80924i | 0.188100 | + | 1.06677i | −0.603238 | + | 3.42113i | 0.858223 | + | 4.86723i | 0 | 0.804890 | − | 1.39411i | 0.854761 | + | 4.84759i | −4.67277 | + | 3.92092i | ||
214.5 | 1.46991 | + | 1.23340i | −0.443955 | − | 0.372522i | 0.292060 | + | 1.65636i | 0.0297440 | − | 0.168687i | −0.193104 | − | 1.09515i | 0 | 0.305182 | − | 0.528591i | −0.462622 | − | 2.62366i | 0.251779 | − | 0.211268i | ||
263.1 | −0.361926 | + | 2.05258i | −0.505259 | + | 2.86547i | −2.20273 | − | 0.801727i | 0.234951 | − | 0.0855151i | −5.69875 | − | 2.07417i | 0 | 0.358588 | − | 0.621093i | −5.13654 | − | 1.86955i | 0.0904922 | + | 0.513206i | ||
263.2 | −0.295006 | + | 1.67306i | 0.530064 | − | 3.00614i | −0.832714 | − | 0.303083i | 1.21755 | − | 0.443151i | 4.87308 | + | 1.77366i | 0 | −0.946138 | + | 1.63876i | −5.93684 | − | 2.16083i | 0.382235 | + | 2.16776i | ||
263.3 | 0.0498910 | − | 0.282946i | 0.383114 | − | 2.17275i | 1.80182 | + | 0.655807i | −3.29535 | + | 1.19941i | −0.595656 | − | 0.216801i | 0 | 0.562764 | − | 0.974735i | −1.75498 | − | 0.638759i | 0.174960 | + | 0.992247i | ||
263.4 | 0.105921 | − | 0.600708i | 0.0260769 | − | 0.147890i | 1.52975 | + | 0.556785i | 2.81231 | − | 1.02360i | −0.0860764 | − | 0.0313292i | 0 | 1.10647 | − | 1.91647i | 2.79789 | + | 1.01835i | −0.317000 | − | 1.79780i | ||
263.5 | 0.327471 | − | 1.85718i | −0.352744 | + | 2.00051i | −1.46250 | − | 0.532308i | −2.40915 | + | 0.876858i | 3.59980 | + | 1.31022i | 0 | 0.418312 | − | 0.724538i | −1.05853 | − | 0.385273i | 0.839558 | + | 4.76137i | ||
275.1 | −2.15877 | − | 0.785729i | −2.84007 | − | 1.03370i | 2.51084 | + | 2.10685i | 2.40965 | − | 2.02194i | 5.31886 | + | 4.46305i | 0 | −1.46761 | − | 2.54197i | 4.69933 | + | 3.94321i | −6.79058 | + | 2.47157i | ||
275.2 | −1.52863 | − | 0.556375i | 1.01101 | + | 0.367976i | 0.495058 | + | 0.415403i | −0.0539084 | + | 0.0452345i | −1.34072 | − | 1.12500i | 0 | 1.10109 | + | 1.90715i | −1.41140 | − | 1.18431i | 0.107573 | − | 0.0391534i | ||
275.3 | 0.593576 | + | 0.216044i | 1.40700 | + | 0.512107i | −1.22643 | − | 1.02910i | −2.76219 | + | 2.31776i | 0.724525 | + | 0.607949i | 0 | −1.13732 | − | 1.96990i | −0.580731 | − | 0.487291i | −2.14031 | + | 0.779008i | ||
275.4 | 1.53348 | + | 0.558142i | −0.433596 | − | 0.157816i | 0.507958 | + | 0.426227i | 2.86936 | − | 2.40768i | −0.576829 | − | 0.484017i | 0 | −1.09085 | − | 1.88941i | −2.13503 | − | 1.79151i | 5.74394 | − | 2.09062i | ||
275.5 | 2.50003 | + | 0.909938i | −0.697375 | − | 0.253824i | 3.89009 | + | 3.26418i | −2.19686 | + | 1.84339i | −1.51250 | − | 1.26914i | 0 | 4.09469 | + | 7.09220i | −1.87623 | − | 1.57434i | −7.16960 | + | 2.60952i | ||
See all 30 embeddings |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
133.u | even | 9 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 931.2.v.e | 30 | |
7.b | odd | 2 | 1 | 931.2.v.d | 30 | ||
7.c | even | 3 | 1 | 931.2.w.b | 30 | ||
7.c | even | 3 | 1 | 931.2.x.d | 30 | ||
7.d | odd | 6 | 1 | 133.2.v.b | ✓ | 30 | |
7.d | odd | 6 | 1 | 931.2.x.e | 30 | ||
19.e | even | 9 | 1 | 931.2.x.d | 30 | ||
133.u | even | 9 | 1 | inner | 931.2.v.e | 30 | |
133.w | even | 9 | 1 | 931.2.w.b | 30 | ||
133.x | odd | 18 | 1 | 931.2.v.d | 30 | ||
133.x | odd | 18 | 1 | 2527.2.a.r | 15 | ||
133.y | odd | 18 | 1 | 931.2.x.e | 30 | ||
133.z | odd | 18 | 1 | 133.2.v.b | ✓ | 30 | |
133.bb | even | 18 | 1 | 2527.2.a.s | 15 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
133.2.v.b | ✓ | 30 | 7.d | odd | 6 | 1 | |
133.2.v.b | ✓ | 30 | 133.z | odd | 18 | 1 | |
931.2.v.d | 30 | 7.b | odd | 2 | 1 | ||
931.2.v.d | 30 | 133.x | odd | 18 | 1 | ||
931.2.v.e | 30 | 1.a | even | 1 | 1 | trivial | |
931.2.v.e | 30 | 133.u | even | 9 | 1 | inner | |
931.2.w.b | 30 | 7.c | even | 3 | 1 | ||
931.2.w.b | 30 | 133.w | even | 9 | 1 | ||
931.2.x.d | 30 | 7.c | even | 3 | 1 | ||
931.2.x.d | 30 | 19.e | even | 9 | 1 | ||
931.2.x.e | 30 | 7.d | odd | 6 | 1 | ||
931.2.x.e | 30 | 133.y | odd | 18 | 1 | ||
2527.2.a.r | 15 | 133.x | odd | 18 | 1 | ||
2527.2.a.s | 15 | 133.bb | even | 18 | 1 |
Hecke kernels
This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(931, [\chi])\):
\( T_{2}^{30} - 6 T_{2}^{28} - 7 T_{2}^{27} + 27 T_{2}^{26} + 30 T_{2}^{25} + 109 T_{2}^{24} + 9 T_{2}^{23} + \cdots + 11449 \) |
\( T_{3}^{30} - 3 T_{3}^{29} + 15 T_{3}^{28} - 15 T_{3}^{27} + 51 T_{3}^{26} + 150 T_{3}^{25} + \cdots + 26569 \) |