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: | \(60\) |
Relative dimension: | \(10\) over \(\Q(\zeta_{9})\) |
Twist minimal: | yes |
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 | −0.436517 | − | 2.47561i | −0.315115 | − | 1.78710i | −4.05873 | + | 1.47726i | 2.79177 | + | 1.01612i | −4.28663 | + | 1.56020i | 0 | 2.91502 | + | 5.04896i | −0.275367 | + | 0.100226i | 1.29687 | − | 7.35490i | ||
177.2 | −0.436517 | − | 2.47561i | 0.315115 | + | 1.78710i | −4.05873 | + | 1.47726i | −2.79177 | − | 1.01612i | 4.28663 | − | 1.56020i | 0 | 2.91502 | + | 5.04896i | −0.275367 | + | 0.100226i | −1.29687 | + | 7.35490i | ||
177.3 | −0.238364 | − | 1.35183i | −0.217163 | − | 1.23159i | 0.108753 | − | 0.0395828i | −0.241269 | − | 0.0878147i | −1.61314 | + | 0.587137i | 0 | −1.45212 | − | 2.51514i | 1.34941 | − | 0.491146i | −0.0612008 | + | 0.347087i | ||
177.4 | −0.238364 | − | 1.35183i | 0.217163 | + | 1.23159i | 0.108753 | − | 0.0395828i | 0.241269 | + | 0.0878147i | 1.61314 | − | 0.587137i | 0 | −1.45212 | − | 2.51514i | 1.34941 | − | 0.491146i | 0.0612008 | − | 0.347087i | ||
177.5 | 0.0811493 | + | 0.460221i | −0.339374 | − | 1.92469i | 1.67417 | − | 0.609347i | −1.39483 | − | 0.507677i | 0.858241 | − | 0.312374i | 0 | 0.883612 | + | 1.53046i | −0.770171 | + | 0.280319i | 0.120454 | − | 0.683128i | ||
177.6 | 0.0811493 | + | 0.460221i | 0.339374 | + | 1.92469i | 1.67417 | − | 0.609347i | 1.39483 | + | 0.507677i | −0.858241 | + | 0.312374i | 0 | 0.883612 | + | 1.53046i | −0.770171 | + | 0.280319i | −0.120454 | + | 0.683128i | ||
177.7 | 0.290795 | + | 1.64918i | −0.279390 | − | 1.58450i | −0.755841 | + | 0.275104i | 3.05215 | + | 1.11089i | 2.53187 | − | 0.921527i | 0 | 1.00113 | + | 1.73401i | 0.386501 | − | 0.140675i | −0.944510 | + | 5.35658i | ||
177.8 | 0.290795 | + | 1.64918i | 0.279390 | + | 1.58450i | −0.755841 | + | 0.275104i | −3.05215 | − | 1.11089i | −2.53187 | + | 0.921527i | 0 | 1.00113 | + | 1.73401i | 0.386501 | − | 0.140675i | 0.944510 | − | 5.35658i | ||
177.9 | 0.476586 | + | 2.70285i | −0.481629 | − | 2.73145i | −5.19890 | + | 1.89225i | −2.65906 | − | 0.967820i | 7.15318 | − | 2.60354i | 0 | −4.84764 | − | 8.39636i | −4.40978 | + | 1.60503i | 1.34860 | − | 7.64831i | ||
177.10 | 0.476586 | + | 2.70285i | 0.481629 | + | 2.73145i | −5.19890 | + | 1.89225i | 2.65906 | + | 0.967820i | −7.15318 | + | 2.60354i | 0 | −4.84764 | − | 8.39636i | −4.40978 | + | 1.60503i | −1.34860 | + | 7.64831i | ||
214.1 | −1.67146 | − | 1.40252i | −1.51875 | − | 1.27438i | 0.479417 | + | 2.71891i | 0.226935 | − | 1.28702i | 0.751181 | + | 4.26016i | 0 | 0.830069 | − | 1.43772i | 0.161606 | + | 0.916510i | −2.18438 | + | 1.83291i | ||
214.2 | −1.67146 | − | 1.40252i | 1.51875 | + | 1.27438i | 0.479417 | + | 2.71891i | −0.226935 | + | 1.28702i | −0.751181 | − | 4.26016i | 0 | 0.830069 | − | 1.43772i | 0.161606 | + | 0.916510i | 2.18438 | − | 1.83291i | ||
214.3 | −0.791970 | − | 0.664541i | −1.48207 | − | 1.24361i | −0.161696 | − | 0.917022i | −0.348334 | + | 1.97550i | 0.347328 | + | 1.96980i | 0 | −1.51518 | + | 2.62438i | 0.129037 | + | 0.731803i | 1.58867 | − | 1.33306i | ||
214.4 | −0.791970 | − | 0.664541i | 1.48207 | + | 1.24361i | −0.161696 | − | 0.917022i | 0.348334 | − | 1.97550i | −0.347328 | − | 1.96980i | 0 | −1.51518 | + | 2.62438i | 0.129037 | + | 0.731803i | −1.58867 | + | 1.33306i | ||
214.5 | 0.157473 | + | 0.132135i | −0.0390973 | − | 0.0328065i | −0.339958 | − | 1.92800i | 0.449719 | − | 2.55048i | −0.00182186 | − | 0.0103323i | 0 | 0.406788 | − | 0.704578i | −0.520492 | − | 2.95186i | 0.407827 | − | 0.342207i | ||
214.6 | 0.157473 | + | 0.132135i | 0.0390973 | + | 0.0328065i | −0.339958 | − | 1.92800i | −0.449719 | + | 2.55048i | 0.00182186 | + | 0.0103323i | 0 | 0.406788 | − | 0.704578i | −0.520492 | − | 2.95186i | −0.407827 | + | 0.342207i | ||
214.7 | 1.19662 | + | 1.00408i | −2.06445 | − | 1.73228i | 0.0764209 | + | 0.433405i | −0.198947 | + | 1.12828i | −0.731009 | − | 4.14576i | 0 | 1.21835 | − | 2.11025i | 0.740214 | + | 4.19796i | −1.37096 | + | 1.15037i | ||
214.8 | 1.19662 | + | 1.00408i | 2.06445 | + | 1.73228i | 0.0764209 | + | 0.433405i | 0.198947 | − | 1.12828i | 0.731009 | + | 4.14576i | 0 | 1.21835 | − | 2.11025i | 0.740214 | + | 4.19796i | 1.37096 | − | 1.15037i | ||
214.9 | 1.87538 | + | 1.57363i | −0.522183 | − | 0.438163i | 0.693442 | + | 3.93270i | 0.666145 | − | 3.77790i | −0.289784 | − | 1.64345i | 0 | −2.44002 | + | 4.22625i | −0.440257 | − | 2.49682i | 7.19429 | − | 6.03673i | ||
214.10 | 1.87538 | + | 1.57363i | 0.522183 | + | 0.438163i | 0.693442 | + | 3.93270i | −0.666145 | + | 3.77790i | 0.289784 | + | 1.64345i | 0 | −2.44002 | + | 4.22625i | −0.440257 | − | 2.49682i | −7.19429 | + | 6.03673i | ||
See all 60 embeddings |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
7.b | odd | 2 | 1 | inner |
133.u | even | 9 | 1 | inner |
133.x | odd | 18 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 931.2.v.g | 60 | |
7.b | odd | 2 | 1 | inner | 931.2.v.g | 60 | |
7.c | even | 3 | 1 | 931.2.w.d | ✓ | 60 | |
7.c | even | 3 | 1 | 931.2.x.g | 60 | ||
7.d | odd | 6 | 1 | 931.2.w.d | ✓ | 60 | |
7.d | odd | 6 | 1 | 931.2.x.g | 60 | ||
19.e | even | 9 | 1 | 931.2.x.g | 60 | ||
133.u | even | 9 | 1 | inner | 931.2.v.g | 60 | |
133.w | even | 9 | 1 | 931.2.w.d | ✓ | 60 | |
133.x | odd | 18 | 1 | inner | 931.2.v.g | 60 | |
133.y | odd | 18 | 1 | 931.2.x.g | 60 | ||
133.z | odd | 18 | 1 | 931.2.w.d | ✓ | 60 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
931.2.v.g | 60 | 1.a | even | 1 | 1 | trivial | |
931.2.v.g | 60 | 7.b | odd | 2 | 1 | inner | |
931.2.v.g | 60 | 133.u | even | 9 | 1 | inner | |
931.2.v.g | 60 | 133.x | odd | 18 | 1 | inner | |
931.2.w.d | ✓ | 60 | 7.c | even | 3 | 1 | |
931.2.w.d | ✓ | 60 | 7.d | odd | 6 | 1 | |
931.2.w.d | ✓ | 60 | 133.w | even | 9 | 1 | |
931.2.w.d | ✓ | 60 | 133.z | odd | 18 | 1 | |
931.2.x.g | 60 | 7.c | even | 3 | 1 | ||
931.2.x.g | 60 | 7.d | odd | 6 | 1 | ||
931.2.x.g | 60 | 19.e | even | 9 | 1 | ||
931.2.x.g | 60 | 133.y | odd | 18 | 1 |
Hecke kernels
This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(931, [\chi])\):
\( T_{2}^{30} + 6 T_{2}^{28} + 7 T_{2}^{27} + 3 T_{2}^{26} + 36 T_{2}^{25} + 189 T_{2}^{24} + 33 T_{2}^{23} + \cdots + 1369 \) |
\( T_{3}^{60} - 9 T_{3}^{58} + 9 T_{3}^{56} + 1199 T_{3}^{54} - 1797 T_{3}^{52} + 5502 T_{3}^{50} + \cdots + 423412929 \) |