Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [129,4,Mod(128,129)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(129, base_ring=CyclotomicField(2))
chi = DirichletCharacter(H, H._module([1, 1]))
N = Newforms(chi, 4, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("129.128");
S:= CuspForms(chi, 4);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 129 = 3 \cdot 43 \) |
Weight: | \( k \) | \(=\) | \( 4 \) |
Character orbit: | \([\chi]\) | \(=\) | 129.d (of order \(2\), degree \(1\), 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: | \(7.61124639074\) |
Analytic rank: | \(0\) |
Dimension: | \(40\) |
Twist minimal: | yes |
Sato-Tate group: | $\mathrm{SU}(2)[C_{2}]$ |
$q$-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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
128.1 | −5.27650 | −2.88180 | − | 4.32380i | 19.8414 | 7.18332 | 15.2058 | + | 22.8145i | 7.72553i | −62.4811 | −10.3905 | + | 24.9206i | −37.9028 | ||||||||||||
128.2 | −5.27650 | −2.88180 | + | 4.32380i | 19.8414 | 7.18332 | 15.2058 | − | 22.8145i | − | 7.72553i | −62.4811 | −10.3905 | − | 24.9206i | −37.9028 | |||||||||||
128.3 | −5.04106 | 3.97147 | − | 3.35074i | 17.4122 | −5.66794 | −20.0204 | + | 16.8913i | − | 20.7753i | −47.4476 | 4.54509 | − | 26.6147i | 28.5724 | |||||||||||
128.4 | −5.04106 | 3.97147 | + | 3.35074i | 17.4122 | −5.66794 | −20.0204 | − | 16.8913i | 20.7753i | −47.4476 | 4.54509 | + | 26.6147i | 28.5724 | ||||||||||||
128.5 | −4.06771 | 4.44323 | − | 2.69401i | 8.54624 | 18.3154 | −18.0738 | + | 10.9584i | 30.6303i | −2.22195 | 12.4846 | − | 23.9402i | −74.5016 | ||||||||||||
128.6 | −4.06771 | 4.44323 | + | 2.69401i | 8.54624 | 18.3154 | −18.0738 | − | 10.9584i | − | 30.6303i | −2.22195 | 12.4846 | + | 23.9402i | −74.5016 | |||||||||||
128.7 | −3.98576 | −0.915028 | − | 5.11495i | 7.88630 | −20.6038 | 3.64708 | + | 20.3870i | 17.3737i | 0.453195 | −25.3254 | + | 9.36065i | 82.1220 | ||||||||||||
128.8 | −3.98576 | −0.915028 | + | 5.11495i | 7.88630 | −20.6038 | 3.64708 | − | 20.3870i | − | 17.3737i | 0.453195 | −25.3254 | − | 9.36065i | 82.1220 | |||||||||||
128.9 | −3.92435 | −5.14192 | − | 0.748758i | 7.40050 | −2.99210 | 20.1787 | + | 2.93839i | − | 22.8501i | 2.35265 | 25.8787 | + | 7.70011i | 11.7420 | |||||||||||
128.10 | −3.92435 | −5.14192 | + | 0.748758i | 7.40050 | −2.99210 | 20.1787 | − | 2.93839i | 22.8501i | 2.35265 | 25.8787 | − | 7.70011i | 11.7420 | ||||||||||||
128.11 | −3.06801 | −2.08321 | − | 4.76027i | 1.41267 | 15.0080 | 6.39132 | + | 14.6046i | − | 12.2345i | 20.2100 | −18.3204 | + | 19.8333i | −46.0447 | |||||||||||
128.12 | −3.06801 | −2.08321 | + | 4.76027i | 1.41267 | 15.0080 | 6.39132 | − | 14.6046i | 12.2345i | 20.2100 | −18.3204 | − | 19.8333i | −46.0447 | ||||||||||||
128.13 | −2.44225 | 4.99892 | − | 1.41802i | −2.03543 | −7.59046 | −12.2086 | + | 3.46316i | 15.7306i | 24.5090 | 22.9784 | − | 14.1772i | 18.5378 | ||||||||||||
128.14 | −2.44225 | 4.99892 | + | 1.41802i | −2.03543 | −7.59046 | −12.2086 | − | 3.46316i | − | 15.7306i | 24.5090 | 22.9784 | + | 14.1772i | 18.5378 | |||||||||||
128.15 | −2.28958 | 1.52984 | − | 4.96584i | −2.75784 | 0.329325 | −3.50269 | + | 11.3697i | − | 11.9797i | 24.6309 | −22.3192 | − | 15.1939i | −0.754014 | |||||||||||
128.16 | −2.28958 | 1.52984 | + | 4.96584i | −2.75784 | 0.329325 | −3.50269 | − | 11.3697i | 11.9797i | 24.6309 | −22.3192 | + | 15.1939i | −0.754014 | ||||||||||||
128.17 | −1.00191 | −4.59953 | − | 2.41750i | −6.99618 | 15.6870 | 4.60830 | + | 2.42211i | 19.9392i | 15.0248 | 15.3113 | + | 22.2388i | −15.7169 | ||||||||||||
128.18 | −1.00191 | −4.59953 | + | 2.41750i | −6.99618 | 15.6870 | 4.60830 | − | 2.42211i | − | 19.9392i | 15.0248 | 15.3113 | − | 22.2388i | −15.7169 | |||||||||||
128.19 | −0.538613 | −4.22240 | − | 3.02842i | −7.70990 | −12.8958 | 2.27424 | + | 1.63115i | − | 14.8086i | 8.46156 | 8.65732 | + | 25.5744i | 6.94587 | |||||||||||
128.20 | −0.538613 | −4.22240 | + | 3.02842i | −7.70990 | −12.8958 | 2.27424 | − | 1.63115i | 14.8086i | 8.46156 | 8.65732 | − | 25.5744i | 6.94587 | ||||||||||||
See all 40 embeddings |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
3.b | odd | 2 | 1 | inner |
43.b | odd | 2 | 1 | inner |
129.d | even | 2 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 129.4.d.b | ✓ | 40 |
3.b | odd | 2 | 1 | inner | 129.4.d.b | ✓ | 40 |
43.b | odd | 2 | 1 | inner | 129.4.d.b | ✓ | 40 |
129.d | even | 2 | 1 | inner | 129.4.d.b | ✓ | 40 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
129.4.d.b | ✓ | 40 | 1.a | even | 1 | 1 | trivial |
129.4.d.b | ✓ | 40 | 3.b | odd | 2 | 1 | inner |
129.4.d.b | ✓ | 40 | 43.b | odd | 2 | 1 | inner |
129.4.d.b | ✓ | 40 | 129.d | even | 2 | 1 | inner |
Hecke kernels
This newform subspace can be constructed as the kernel of the linear operator \( T_{2}^{20} - 123 T_{2}^{18} + 6396 T_{2}^{16} - 183544 T_{2}^{14} + 3181233 T_{2}^{12} + \cdots + 245472000 \) acting on \(S_{4}^{\mathrm{new}}(129, [\chi])\).