Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [9,16,Mod(4,9)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(9, base_ring=CyclotomicField(6))
chi = DirichletCharacter(H, H._module([2]))
N = Newforms(chi, 16, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("9.4");
S:= CuspForms(chi, 16);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 9 = 3^{2} \) |
Weight: | \( k \) | \(=\) | \( 16 \) |
Character orbit: | \([\chi]\) | \(=\) | 9.c (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: | \(12.8424154590\) |
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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
4.1 | −168.709 | − | 292.213i | 406.522 | + | 3766.12i | −40541.7 | + | 70220.2i | −118733. | + | 205651.i | 1.03192e6 | − | 754170.i | −1.07628e6 | − | 1.86418e6i | 1.63025e7 | −1.40184e7 | + | 3.06202e6i | 8.01252e7 | ||||
4.2 | −166.126 | − | 287.739i | −2565.89 | − | 2786.59i | −38811.7 | + | 67223.8i | 91736.2 | − | 158892.i | −375549. | + | 1.20123e6i | 1.67796e6 | + | 2.90631e6i | 1.49033e7 | −1.18130e6 | + | 1.43002e7i | −6.09590e7 | ||||
4.3 | −116.313 | − | 201.461i | 2882.05 | − | 2458.18i | −10673.6 | + | 18487.2i | −14612.7 | + | 25309.9i | −830448. | − | 294701.i | −936776. | − | 1.62254e6i | −2.65680e6 | 2.26356e6 | − | 1.41692e7i | 6.79859e6 | ||||
4.4 | −90.7396 | − | 157.166i | −2860.12 | + | 2483.67i | −83.3453 | + | 144.358i | 114284. | − | 197945.i | 649873. | + | 224146.i | −926548. | − | 1.60483e6i | −5.91646e6 | 2.01169e6 | − | 1.42072e7i | −4.14803e7 | ||||
4.5 | −87.7622 | − | 152.009i | 3223.10 | + | 1990.12i | 979.600 | − | 1696.72i | 31725.2 | − | 54949.7i | 19648.6 | − | 664595.i | 1.89991e6 | + | 3.29074e6i | −6.09547e6 | 6.42779e6 | + | 1.28287e7i | −1.11371e7 | ||||
4.6 | −71.0488 | − | 123.060i | −3420.09 | − | 1628.46i | 6288.14 | − | 10891.4i | −134844. | + | 233556.i | 42594.5 | + | 536577.i | −263672. | − | 456694.i | −6.44331e6 | 9.04513e6 | + | 1.11390e7i | 3.83220e7 | ||||
4.7 | 5.85162 | + | 10.1353i | −1216.56 | + | 3587.32i | 16315.5 | − | 28259.3i | −75278.1 | + | 130386.i | −43477.5 | + | 8661.42i | 1.21608e6 | + | 2.10632e6i | 765381. | −1.13889e7 | − | 8.72841e6i | −1.76200e6 | ||||
4.8 | 7.65532 | + | 13.2594i | −2.84524 | − | 3787.99i | 16266.8 | − | 28174.9i | 62137.0 | − | 107624.i | 50204.8 | − | 29036.0i | 214112. | + | 370852.i | 999809. | −1.43489e7 | + | 21555.5i | 1.90271e6 | ||||
4.9 | 30.1976 | + | 52.3037i | 2829.55 | + | 2518.45i | 14560.2 | − | 25219.0i | 62931.9 | − | 109001.i | −46278.7 | + | 224047.i | −2.04281e6 | − | 3.53826e6i | 3.73776e6 | 1.66376e6 | + | 1.42521e7i | 7.60156e6 | ||||
4.10 | 64.3019 | + | 111.374i | 3592.76 | − | 1200.40i | 8114.53 | − | 14054.8i | −162694. | + | 281794.i | 364715. | + | 322953.i | 160110. | + | 277318.i | 6.30121e6 | 1.14670e7 | − | 8.62549e6i | −4.18462e7 | ||||
4.11 | 90.1139 | + | 156.082i | −3787.95 | − | 17.8502i | 142.961 | − | 247.616i | 43232.1 | − | 74880.2i | −338561. | − | 592839.i | 142580. | + | 246956.i | 5.95724e6 | 1.43483e7 | + | 135231.i | 1.55833e7 | ||||
4.12 | 137.732 | + | 238.559i | 3667.27 | − | 948.716i | −21556.3 | + | 37336.6i | 132801. | − | 230018.i | 731425. | + | 744191.i | 1.52495e6 | + | 2.64129e6i | −2.84956e6 | 1.25488e7 | − | 6.95839e6i | 7.31638e7 | ||||
4.13 | 146.377 | + | 253.533i | −62.1065 | + | 3787.49i | −26468.7 | + | 45845.2i | −28285.5 | + | 48991.9i | −969344. | + | 538657.i | −125194. | − | 216842.i | −5.90471e6 | −1.43412e7 | − | 470455.i | −1.65614e7 | ||||
4.14 | 153.969 | + | 266.682i | −1013.18 | − | 3649.98i | −31029.0 | + | 53743.8i | −80727.8 | + | 139825.i | 817389. | − | 832181.i | −1.06256e6 | − | 1.84041e6i | −9.01952e6 | −1.22959e7 | + | 7.39615e6i | −4.97183e7 | ||||
7.1 | −168.709 | + | 292.213i | 406.522 | − | 3766.12i | −40541.7 | − | 70220.2i | −118733. | − | 205651.i | 1.03192e6 | + | 754170.i | −1.07628e6 | + | 1.86418e6i | 1.63025e7 | −1.40184e7 | − | 3.06202e6i | 8.01252e7 | ||||
7.2 | −166.126 | + | 287.739i | −2565.89 | + | 2786.59i | −38811.7 | − | 67223.8i | 91736.2 | + | 158892.i | −375549. | − | 1.20123e6i | 1.67796e6 | − | 2.90631e6i | 1.49033e7 | −1.18130e6 | − | 1.43002e7i | −6.09590e7 | ||||
7.3 | −116.313 | + | 201.461i | 2882.05 | + | 2458.18i | −10673.6 | − | 18487.2i | −14612.7 | − | 25309.9i | −830448. | + | 294701.i | −936776. | + | 1.62254e6i | −2.65680e6 | 2.26356e6 | + | 1.41692e7i | 6.79859e6 | ||||
7.4 | −90.7396 | + | 157.166i | −2860.12 | − | 2483.67i | −83.3453 | − | 144.358i | 114284. | + | 197945.i | 649873. | − | 224146.i | −926548. | + | 1.60483e6i | −5.91646e6 | 2.01169e6 | + | 1.42072e7i | −4.14803e7 | ||||
7.5 | −87.7622 | + | 152.009i | 3223.10 | − | 1990.12i | 979.600 | + | 1696.72i | 31725.2 | + | 54949.7i | 19648.6 | + | 664595.i | 1.89991e6 | − | 3.29074e6i | −6.09547e6 | 6.42779e6 | − | 1.28287e7i | −1.11371e7 | ||||
7.6 | −71.0488 | + | 123.060i | −3420.09 | + | 1628.46i | 6288.14 | + | 10891.4i | −134844. | − | 233556.i | 42594.5 | − | 536577.i | −263672. | + | 456694.i | −6.44331e6 | 9.04513e6 | − | 1.11390e7i | 3.83220e7 | ||||
See all 28 embeddings |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
9.c | even | 3 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 9.16.c.a | ✓ | 28 |
3.b | odd | 2 | 1 | 27.16.c.a | 28 | ||
9.c | even | 3 | 1 | inner | 9.16.c.a | ✓ | 28 |
9.c | even | 3 | 1 | 81.16.a.e | 14 | ||
9.d | odd | 6 | 1 | 27.16.c.a | 28 | ||
9.d | odd | 6 | 1 | 81.16.a.c | 14 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
9.16.c.a | ✓ | 28 | 1.a | even | 1 | 1 | trivial |
9.16.c.a | ✓ | 28 | 9.c | even | 3 | 1 | inner |
27.16.c.a | 28 | 3.b | odd | 2 | 1 | ||
27.16.c.a | 28 | 9.d | odd | 6 | 1 | ||
81.16.a.c | 14 | 9.d | odd | 6 | 1 | ||
81.16.a.e | 14 | 9.c | even | 3 | 1 |
Hecke kernels
This newform subspace is the entire newspace \(S_{16}^{\mathrm{new}}(9, [\chi])\).