Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [847,2,Mod(485,847)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(847, base_ring=CyclotomicField(6))
chi = DirichletCharacter(H, H._module([2, 0]))
N = Newforms(chi, 2, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("847.485");
S:= CuspForms(chi, 2);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 847 = 7 \cdot 11^{2} \) |
Weight: | \( k \) | \(=\) | \( 2 \) |
Character orbit: | \([\chi]\) | \(=\) | 847.e (of order \(3\), 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: | \(6.76332905120\) |
Analytic rank: | \(0\) |
Dimension: | \(28\) |
Relative dimension: | \(14\) over \(\Q(\zeta_{3})\) |
Twist minimal: | yes |
Sato-Tate group: | $\mathrm{SU}(2)[C_{3}]$ |
$q$-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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
485.1 | −1.32785 | + | 2.29990i | −0.249514 | − | 0.432170i | −2.52636 | − | 4.37579i | 1.76072 | − | 3.04966i | 1.32526 | 1.92934 | − | 1.81043i | 8.10710 | 1.37549 | − | 2.38241i | 4.67594 | + | 8.09897i | ||||
485.2 | −1.22945 | + | 2.12947i | 0.276930 | + | 0.479656i | −2.02311 | − | 3.50413i | −0.620518 | + | 1.07477i | −1.36189 | −2.34245 | − | 1.23001i | 5.03146 | 1.34662 | − | 2.33241i | −1.52579 | − | 2.64275i | ||||
485.3 | −0.945348 | + | 1.63739i | 1.42149 | + | 2.46210i | −0.787365 | − | 1.36376i | −1.73847 | + | 3.01112i | −5.37522 | 2.58119 | + | 0.580920i | −0.804055 | −2.54129 | + | 4.40164i | −3.28692 | − | 5.69311i | ||||
485.4 | −0.830383 | + | 1.43827i | −1.16938 | − | 2.02543i | −0.379072 | − | 0.656572i | 1.38656 | − | 2.40159i | 3.88414 | 2.09572 | − | 1.61492i | −2.06243 | −1.23491 | + | 2.13892i | 2.30275 | + | 3.98848i | ||||
485.5 | −0.614728 | + | 1.06474i | 1.62503 | + | 2.81463i | 0.244219 | + | 0.423000i | 1.29373 | − | 2.24080i | −3.99581 | 0.255479 | + | 2.63339i | −3.05942 | −3.78144 | + | 6.54965i | 1.59058 | + | 2.75496i | ||||
485.6 | −0.503676 | + | 0.872392i | 0.297921 | + | 0.516014i | 0.492622 | + | 0.853246i | 0.793525 | − | 1.37442i | −0.600222 | −2.26989 | + | 1.35927i | −3.00719 | 1.32249 | − | 2.29061i | 0.799358 | + | 1.38453i | ||||
485.7 | −0.102308 | + | 0.177202i | −0.702479 | − | 1.21673i | 0.979066 | + | 1.69579i | −0.875546 | + | 1.51649i | 0.287475 | −1.23221 | + | 2.34129i | −0.809894 | 0.513047 | − | 0.888624i | −0.179150 | − | 0.310297i | ||||
485.8 | 0.102308 | − | 0.177202i | −0.702479 | − | 1.21673i | 0.979066 | + | 1.69579i | −0.875546 | + | 1.51649i | −0.287475 | 1.23221 | − | 2.34129i | 0.809894 | 0.513047 | − | 0.888624i | 0.179150 | + | 0.310297i | ||||
485.9 | 0.503676 | − | 0.872392i | 0.297921 | + | 0.516014i | 0.492622 | + | 0.853246i | 0.793525 | − | 1.37442i | 0.600222 | 2.26989 | − | 1.35927i | 3.00719 | 1.32249 | − | 2.29061i | −0.799358 | − | 1.38453i | ||||
485.10 | 0.614728 | − | 1.06474i | 1.62503 | + | 2.81463i | 0.244219 | + | 0.423000i | 1.29373 | − | 2.24080i | 3.99581 | −0.255479 | − | 2.63339i | 3.05942 | −3.78144 | + | 6.54965i | −1.59058 | − | 2.75496i | ||||
485.11 | 0.830383 | − | 1.43827i | −1.16938 | − | 2.02543i | −0.379072 | − | 0.656572i | 1.38656 | − | 2.40159i | −3.88414 | −2.09572 | + | 1.61492i | 2.06243 | −1.23491 | + | 2.13892i | −2.30275 | − | 3.98848i | ||||
485.12 | 0.945348 | − | 1.63739i | 1.42149 | + | 2.46210i | −0.787365 | − | 1.36376i | −1.73847 | + | 3.01112i | 5.37522 | −2.58119 | − | 0.580920i | 0.804055 | −2.54129 | + | 4.40164i | 3.28692 | + | 5.69311i | ||||
485.13 | 1.22945 | − | 2.12947i | 0.276930 | + | 0.479656i | −2.02311 | − | 3.50413i | −0.620518 | + | 1.07477i | 1.36189 | 2.34245 | + | 1.23001i | −5.03146 | 1.34662 | − | 2.33241i | 1.52579 | + | 2.64275i | ||||
485.14 | 1.32785 | − | 2.29990i | −0.249514 | − | 0.432170i | −2.52636 | − | 4.37579i | 1.76072 | − | 3.04966i | −1.32526 | −1.92934 | + | 1.81043i | −8.10710 | 1.37549 | − | 2.38241i | −4.67594 | − | 8.09897i | ||||
606.1 | −1.32785 | − | 2.29990i | −0.249514 | + | 0.432170i | −2.52636 | + | 4.37579i | 1.76072 | + | 3.04966i | 1.32526 | 1.92934 | + | 1.81043i | 8.10710 | 1.37549 | + | 2.38241i | 4.67594 | − | 8.09897i | ||||
606.2 | −1.22945 | − | 2.12947i | 0.276930 | − | 0.479656i | −2.02311 | + | 3.50413i | −0.620518 | − | 1.07477i | −1.36189 | −2.34245 | + | 1.23001i | 5.03146 | 1.34662 | + | 2.33241i | −1.52579 | + | 2.64275i | ||||
606.3 | −0.945348 | − | 1.63739i | 1.42149 | − | 2.46210i | −0.787365 | + | 1.36376i | −1.73847 | − | 3.01112i | −5.37522 | 2.58119 | − | 0.580920i | −0.804055 | −2.54129 | − | 4.40164i | −3.28692 | + | 5.69311i | ||||
606.4 | −0.830383 | − | 1.43827i | −1.16938 | + | 2.02543i | −0.379072 | + | 0.656572i | 1.38656 | + | 2.40159i | 3.88414 | 2.09572 | + | 1.61492i | −2.06243 | −1.23491 | − | 2.13892i | 2.30275 | − | 3.98848i | ||||
606.5 | −0.614728 | − | 1.06474i | 1.62503 | − | 2.81463i | 0.244219 | − | 0.423000i | 1.29373 | + | 2.24080i | −3.99581 | 0.255479 | − | 2.63339i | −3.05942 | −3.78144 | − | 6.54965i | 1.59058 | − | 2.75496i | ||||
606.6 | −0.503676 | − | 0.872392i | 0.297921 | − | 0.516014i | 0.492622 | − | 0.853246i | 0.793525 | + | 1.37442i | −0.600222 | −2.26989 | − | 1.35927i | −3.00719 | 1.32249 | + | 2.29061i | 0.799358 | − | 1.38453i | ||||
See all 28 embeddings |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
7.c | even | 3 | 1 | inner |
11.b | odd | 2 | 1 | inner |
77.h | odd | 6 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 847.2.e.j | ✓ | 28 |
7.c | even | 3 | 1 | inner | 847.2.e.j | ✓ | 28 |
7.c | even | 3 | 1 | 5929.2.a.cd | 14 | ||
7.d | odd | 6 | 1 | 5929.2.a.ce | 14 | ||
11.b | odd | 2 | 1 | inner | 847.2.e.j | ✓ | 28 |
11.c | even | 5 | 4 | 847.2.n.n | 112 | ||
11.d | odd | 10 | 4 | 847.2.n.n | 112 | ||
77.h | odd | 6 | 1 | inner | 847.2.e.j | ✓ | 28 |
77.h | odd | 6 | 1 | 5929.2.a.cd | 14 | ||
77.i | even | 6 | 1 | 5929.2.a.ce | 14 | ||
77.m | even | 15 | 4 | 847.2.n.n | 112 | ||
77.o | odd | 30 | 4 | 847.2.n.n | 112 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
847.2.e.j | ✓ | 28 | 1.a | even | 1 | 1 | trivial |
847.2.e.j | ✓ | 28 | 7.c | even | 3 | 1 | inner |
847.2.e.j | ✓ | 28 | 11.b | odd | 2 | 1 | inner |
847.2.e.j | ✓ | 28 | 77.h | odd | 6 | 1 | inner |
847.2.n.n | 112 | 11.c | even | 5 | 4 | ||
847.2.n.n | 112 | 11.d | odd | 10 | 4 | ||
847.2.n.n | 112 | 77.m | even | 15 | 4 | ||
847.2.n.n | 112 | 77.o | odd | 30 | 4 | ||
5929.2.a.cd | 14 | 7.c | even | 3 | 1 | ||
5929.2.a.cd | 14 | 77.h | odd | 6 | 1 | ||
5929.2.a.ce | 14 | 7.d | odd | 6 | 1 | ||
5929.2.a.ce | 14 | 77.i | even | 6 | 1 |
Hecke kernels
This newform subspace can be constructed as the kernel of the linear operator \( T_{2}^{28} + 22 T_{2}^{26} + 297 T_{2}^{24} + 2556 T_{2}^{22} + 16162 T_{2}^{20} + 73980 T_{2}^{18} + \cdots + 729 \) acting on \(S_{2}^{\mathrm{new}}(847, [\chi])\).