Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [891,2,Mod(107,891)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(891, base_ring=CyclotomicField(30))
chi = DirichletCharacter(H, H._module([5, 9]))
N = Newforms(chi, 2, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("891.107");
S:= CuspForms(chi, 2);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 891 = 3^{4} \cdot 11 \) |
Weight: | \( k \) | \(=\) | \( 2 \) |
Character orbit: | \([\chi]\) | \(=\) | 891.u (of order \(30\), degree \(8\), 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: | \(7.11467082010\) |
Analytic rank: | \(0\) |
Dimension: | \(64\) |
Relative dimension: | \(8\) over \(\Q(\zeta_{30})\) |
Twist minimal: | no (minimal twist has level 297) |
Sato-Tate group: | $\mathrm{SU}(2)[C_{30}]$ |
$q$-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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
107.1 | −0.269800 | − | 2.56697i | 0 | −4.56025 | + | 0.969312i | 0.460024 | + | 0.0483504i | 0 | 1.41721 | − | 1.27606i | 2.12333 | + | 6.53495i | 0 | − | 1.19391i | |||||||
107.2 | −0.206165 | − | 1.96152i | 0 | −1.84878 | + | 0.392970i | 0.935625 | + | 0.0983382i | 0 | −2.23753 | + | 2.01468i | −0.0669928 | − | 0.206183i | 0 | − | 1.85553i | |||||||
107.3 | −0.106570 | − | 1.01395i | 0 | 0.939559 | − | 0.199709i | −3.08748 | − | 0.324507i | 0 | 3.11115 | − | 2.80129i | −0.932731 | − | 2.87065i | 0 | 3.16513i | ||||||||
107.4 | −0.0667948 | − | 0.635510i | 0 | 1.55688 | − | 0.330926i | 2.44156 | + | 0.256618i | 0 | −0.543595 | + | 0.489455i | −0.709229 | − | 2.18278i | 0 | − | 1.56878i | |||||||
107.5 | 0.0667948 | + | 0.635510i | 0 | 1.55688 | − | 0.330926i | −2.44156 | − | 0.256618i | 0 | −0.543595 | + | 0.489455i | 0.709229 | + | 2.18278i | 0 | − | 1.56878i | |||||||
107.6 | 0.106570 | + | 1.01395i | 0 | 0.939559 | − | 0.199709i | 3.08748 | + | 0.324507i | 0 | 3.11115 | − | 2.80129i | 0.932731 | + | 2.87065i | 0 | 3.16513i | ||||||||
107.7 | 0.206165 | + | 1.96152i | 0 | −1.84878 | + | 0.392970i | −0.935625 | − | 0.0983382i | 0 | −2.23753 | + | 2.01468i | 0.0669928 | + | 0.206183i | 0 | − | 1.85553i | |||||||
107.8 | 0.269800 | + | 2.56697i | 0 | −4.56025 | + | 0.969312i | −0.460024 | − | 0.0483504i | 0 | 1.41721 | − | 1.27606i | −2.12333 | − | 6.53495i | 0 | − | 1.19391i | |||||||
134.1 | −2.66757 | + | 0.567010i | 0 | 4.96736 | − | 2.21161i | −0.462252 | + | 2.17472i | 0 | −3.33344 | − | 0.350359i | −7.58414 | + | 5.51020i | 0 | − | 6.06334i | |||||||
134.2 | −1.64032 | + | 0.348661i | 0 | 0.741992 | − | 0.330356i | 0.314203 | − | 1.47821i | 0 | −4.09794 | − | 0.430711i | 1.61147 | − | 1.17080i | 0 | 2.53429i | ||||||||
134.3 | −1.14283 | + | 0.242916i | 0 | −0.580043 | + | 0.258252i | −0.0549699 | + | 0.258613i | 0 | 1.44175 | + | 0.151534i | 2.49060 | − | 1.80953i | 0 | − | 0.308903i | |||||||
134.4 | −0.607139 | + | 0.129051i | 0 | −1.47513 | + | 0.656769i | −0.776244 | + | 3.65194i | 0 | 2.20625 | + | 0.231886i | 1.81517 | − | 1.31880i | 0 | − | 2.31741i | |||||||
134.5 | 0.607139 | − | 0.129051i | 0 | −1.47513 | + | 0.656769i | 0.776244 | − | 3.65194i | 0 | 2.20625 | + | 0.231886i | −1.81517 | + | 1.31880i | 0 | − | 2.31741i | |||||||
134.6 | 1.14283 | − | 0.242916i | 0 | −0.580043 | + | 0.258252i | 0.0549699 | − | 0.258613i | 0 | 1.44175 | + | 0.151534i | −2.49060 | + | 1.80953i | 0 | − | 0.308903i | |||||||
134.7 | 1.64032 | − | 0.348661i | 0 | 0.741992 | − | 0.330356i | −0.314203 | + | 1.47821i | 0 | −4.09794 | − | 0.430711i | −1.61147 | + | 1.17080i | 0 | 2.53429i | ||||||||
134.8 | 2.66757 | − | 0.567010i | 0 | 4.96736 | − | 2.21161i | 0.462252 | − | 2.17472i | 0 | −3.33344 | − | 0.350359i | 7.58414 | − | 5.51020i | 0 | − | 6.06334i | |||||||
215.1 | −1.82483 | + | 2.02668i | 0 | −0.568369 | − | 5.40767i | 1.65224 | − | 1.48768i | 0 | 1.36330 | − | 3.06202i | 7.58414 | + | 5.51020i | 0 | 6.06334i | ||||||||
215.2 | −1.12211 | + | 1.24623i | 0 | −0.0848992 | − | 0.807762i | −1.12307 | + | 1.01121i | 0 | 1.67596 | − | 3.76427i | −1.61147 | − | 1.17080i | 0 | − | 2.53429i | |||||||
215.3 | −0.781785 | + | 0.868260i | 0 | 0.0663688 | + | 0.631457i | 0.196480 | − | 0.176912i | 0 | −0.589641 | + | 1.32436i | −2.49060 | − | 1.80953i | 0 | 0.308903i | ||||||||
215.4 | −0.415331 | + | 0.461272i | 0 | 0.168785 | + | 1.60588i | 2.77455 | − | 2.49822i | 0 | −0.902304 | + | 2.02661i | −1.81517 | − | 1.31880i | 0 | 2.31741i | ||||||||
See all 64 embeddings |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
3.b | odd | 2 | 1 | inner |
9.c | even | 3 | 1 | inner |
9.d | odd | 6 | 1 | inner |
11.d | odd | 10 | 1 | inner |
33.f | even | 10 | 1 | inner |
99.o | odd | 30 | 1 | inner |
99.p | even | 30 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 891.2.u.e | 64 | |
3.b | odd | 2 | 1 | inner | 891.2.u.e | 64 | |
9.c | even | 3 | 1 | 297.2.k.a | ✓ | 32 | |
9.c | even | 3 | 1 | inner | 891.2.u.e | 64 | |
9.d | odd | 6 | 1 | 297.2.k.a | ✓ | 32 | |
9.d | odd | 6 | 1 | inner | 891.2.u.e | 64 | |
11.d | odd | 10 | 1 | inner | 891.2.u.e | 64 | |
33.f | even | 10 | 1 | inner | 891.2.u.e | 64 | |
99.o | odd | 30 | 1 | 297.2.k.a | ✓ | 32 | |
99.o | odd | 30 | 1 | inner | 891.2.u.e | 64 | |
99.p | even | 30 | 1 | 297.2.k.a | ✓ | 32 | |
99.p | even | 30 | 1 | inner | 891.2.u.e | 64 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
297.2.k.a | ✓ | 32 | 9.c | even | 3 | 1 | |
297.2.k.a | ✓ | 32 | 9.d | odd | 6 | 1 | |
297.2.k.a | ✓ | 32 | 99.o | odd | 30 | 1 | |
297.2.k.a | ✓ | 32 | 99.p | even | 30 | 1 | |
891.2.u.e | 64 | 1.a | even | 1 | 1 | trivial | |
891.2.u.e | 64 | 3.b | odd | 2 | 1 | inner | |
891.2.u.e | 64 | 9.c | even | 3 | 1 | inner | |
891.2.u.e | 64 | 9.d | odd | 6 | 1 | inner | |
891.2.u.e | 64 | 11.d | odd | 10 | 1 | inner | |
891.2.u.e | 64 | 33.f | even | 10 | 1 | inner | |
891.2.u.e | 64 | 99.o | odd | 30 | 1 | inner | |
891.2.u.e | 64 | 99.p | even | 30 | 1 | inner |
Hecke kernels
This newform subspace can be constructed as the kernel of the linear operator \( T_{2}^{64} - 12 T_{2}^{62} + 43 T_{2}^{60} + 264 T_{2}^{58} - 4176 T_{2}^{56} + 35880 T_{2}^{54} + \cdots + 214358881 \) acting on \(S_{2}^{\mathrm{new}}(891, [\chi])\).