Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [1340,2,Mod(269,1340)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(1340, base_ring=CyclotomicField(2))
chi = DirichletCharacter(H, H._module([0, 1, 0]))
N = Newforms(chi, 2, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("1340.269");
S:= CuspForms(chi, 2);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 1340 = 2^{2} \cdot 5 \cdot 67 \) |
Weight: | \( k \) | \(=\) | \( 2 \) |
Character orbit: | \([\chi]\) | \(=\) | 1340.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: | \(10.6999538709\) |
Analytic rank: | \(0\) |
Dimension: | \(24\) |
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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
269.1 | 0 | − | 3.35830i | 0 | −1.05839 | + | 1.96972i | 0 | 0.243981i | 0 | −8.27816 | 0 | |||||||||||||||
269.2 | 0 | − | 3.03520i | 0 | −2.22635 | + | 0.208198i | 0 | − | 2.33405i | 0 | −6.21241 | 0 | ||||||||||||||
269.3 | 0 | − | 2.81686i | 0 | 1.18993 | − | 1.89316i | 0 | − | 3.49884i | 0 | −4.93469 | 0 | ||||||||||||||
269.4 | 0 | − | 2.70814i | 0 | 0.126352 | − | 2.23250i | 0 | 1.82447i | 0 | −4.33401 | 0 | |||||||||||||||
269.5 | 0 | − | 2.32962i | 0 | 1.79784 | + | 1.32957i | 0 | − | 4.45400i | 0 | −2.42711 | 0 | ||||||||||||||
269.6 | 0 | − | 2.24630i | 0 | 0.328614 | + | 2.21179i | 0 | − | 1.08146i | 0 | −2.04585 | 0 | ||||||||||||||
269.7 | 0 | − | 1.96434i | 0 | −2.20896 | + | 0.347144i | 0 | 3.89601i | 0 | −0.858615 | 0 | |||||||||||||||
269.8 | 0 | − | 1.45417i | 0 | −0.526262 | + | 2.17326i | 0 | 0.104425i | 0 | 0.885383 | 0 | |||||||||||||||
269.9 | 0 | − | 1.33786i | 0 | −1.18468 | − | 1.89645i | 0 | 2.67141i | 0 | 1.21012 | 0 | |||||||||||||||
269.10 | 0 | − | 1.03387i | 0 | −0.459633 | − | 2.18832i | 0 | − | 3.69864i | 0 | 1.93111 | 0 | ||||||||||||||
269.11 | 0 | − | 0.849469i | 0 | −1.81697 | + | 1.30332i | 0 | − | 1.11505i | 0 | 2.27840 | 0 | ||||||||||||||
269.12 | 0 | − | 0.462771i | 0 | 1.03851 | + | 1.98028i | 0 | 0.815435i | 0 | 2.78584 | 0 | |||||||||||||||
269.13 | 0 | 0.462771i | 0 | 1.03851 | − | 1.98028i | 0 | − | 0.815435i | 0 | 2.78584 | 0 | |||||||||||||||
269.14 | 0 | 0.849469i | 0 | −1.81697 | − | 1.30332i | 0 | 1.11505i | 0 | 2.27840 | 0 | ||||||||||||||||
269.15 | 0 | 1.03387i | 0 | −0.459633 | + | 2.18832i | 0 | 3.69864i | 0 | 1.93111 | 0 | ||||||||||||||||
269.16 | 0 | 1.33786i | 0 | −1.18468 | + | 1.89645i | 0 | − | 2.67141i | 0 | 1.21012 | 0 | |||||||||||||||
269.17 | 0 | 1.45417i | 0 | −0.526262 | − | 2.17326i | 0 | − | 0.104425i | 0 | 0.885383 | 0 | |||||||||||||||
269.18 | 0 | 1.96434i | 0 | −2.20896 | − | 0.347144i | 0 | − | 3.89601i | 0 | −0.858615 | 0 | |||||||||||||||
269.19 | 0 | 2.24630i | 0 | 0.328614 | − | 2.21179i | 0 | 1.08146i | 0 | −2.04585 | 0 | ||||||||||||||||
269.20 | 0 | 2.32962i | 0 | 1.79784 | − | 1.32957i | 0 | 4.45400i | 0 | −2.42711 | 0 | ||||||||||||||||
See all 24 embeddings |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
5.b | even | 2 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 1340.2.d.c | ✓ | 24 |
5.b | even | 2 | 1 | inner | 1340.2.d.c | ✓ | 24 |
5.c | odd | 4 | 1 | 6700.2.a.ba | 12 | ||
5.c | odd | 4 | 1 | 6700.2.a.bb | 12 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
1340.2.d.c | ✓ | 24 | 1.a | even | 1 | 1 | trivial |
1340.2.d.c | ✓ | 24 | 5.b | even | 2 | 1 | inner |
6700.2.a.ba | 12 | 5.c | odd | 4 | 1 | ||
6700.2.a.bb | 12 | 5.c | odd | 4 | 1 |
Hecke kernels
This newform subspace can be constructed as the kernel of the linear operator \( T_{3}^{24} + 56 T_{3}^{22} + 1364 T_{3}^{20} + 19003 T_{3}^{18} + 167534 T_{3}^{16} + 976759 T_{3}^{14} + \cdots + 399424 \) acting on \(S_{2}^{\mathrm{new}}(1340, [\chi])\).