Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [1620,2,Mod(53,1620)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(1620, base_ring=CyclotomicField(12))
chi = DirichletCharacter(H, H._module([0, 10, 9]))
N = Newforms(chi, 2, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("1620.53");
S:= CuspForms(chi, 2);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 1620 = 2^{2} \cdot 3^{4} \cdot 5 \) |
Weight: | \( k \) | \(=\) | \( 2 \) |
Character orbit: | \([\chi]\) | \(=\) | 1620.x (of order \(12\), degree \(4\), 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: | \(12.9357651274\) |
Analytic rank: | \(0\) |
Dimension: | \(24\) |
Relative dimension: | \(6\) over \(\Q(\zeta_{12})\) |
Twist minimal: | yes |
Sato-Tate group: | $\mathrm{SU}(2)[C_{12}]$ |
$q$-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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
53.1 | 0 | 0 | 0 | −2.09212 | + | 0.789333i | 0 | −0.341151 | − | 0.0914111i | 0 | 0 | 0 | ||||||||||||||
53.2 | 0 | 0 | 0 | −1.96505 | + | 1.06704i | 0 | −3.92738 | − | 1.05234i | 0 | 0 | 0 | ||||||||||||||
53.3 | 0 | 0 | 0 | −1.09299 | − | 1.95074i | 0 | 1.90251 | + | 0.509775i | 0 | 0 | 0 | ||||||||||||||
53.4 | 0 | 0 | 0 | 1.09299 | + | 1.95074i | 0 | 1.90251 | + | 0.509775i | 0 | 0 | 0 | ||||||||||||||
53.5 | 0 | 0 | 0 | 1.96505 | − | 1.06704i | 0 | −3.92738 | − | 1.05234i | 0 | 0 | 0 | ||||||||||||||
53.6 | 0 | 0 | 0 | 2.09212 | − | 0.789333i | 0 | −0.341151 | − | 0.0914111i | 0 | 0 | 0 | ||||||||||||||
377.1 | 0 | 0 | 0 | −2.19984 | − | 0.400874i | 0 | 0.0735330 | − | 0.274429i | 0 | 0 | 0 | ||||||||||||||
377.2 | 0 | 0 | 0 | −1.82312 | + | 1.29469i | 0 | 0.536206 | − | 2.00115i | 0 | 0 | 0 | ||||||||||||||
377.3 | 0 | 0 | 0 | −0.635536 | − | 2.14385i | 0 | −1.24371 | + | 4.64160i | 0 | 0 | 0 | ||||||||||||||
377.4 | 0 | 0 | 0 | 0.635536 | + | 2.14385i | 0 | −1.24371 | + | 4.64160i | 0 | 0 | 0 | ||||||||||||||
377.5 | 0 | 0 | 0 | 1.82312 | − | 1.29469i | 0 | 0.536206 | − | 2.00115i | 0 | 0 | 0 | ||||||||||||||
377.6 | 0 | 0 | 0 | 2.19984 | + | 0.400874i | 0 | 0.0735330 | − | 0.274429i | 0 | 0 | 0 | ||||||||||||||
593.1 | 0 | 0 | 0 | −2.19984 | + | 0.400874i | 0 | 0.0735330 | + | 0.274429i | 0 | 0 | 0 | ||||||||||||||
593.2 | 0 | 0 | 0 | −1.82312 | − | 1.29469i | 0 | 0.536206 | + | 2.00115i | 0 | 0 | 0 | ||||||||||||||
593.3 | 0 | 0 | 0 | −0.635536 | + | 2.14385i | 0 | −1.24371 | − | 4.64160i | 0 | 0 | 0 | ||||||||||||||
593.4 | 0 | 0 | 0 | 0.635536 | − | 2.14385i | 0 | −1.24371 | − | 4.64160i | 0 | 0 | 0 | ||||||||||||||
593.5 | 0 | 0 | 0 | 1.82312 | + | 1.29469i | 0 | 0.536206 | + | 2.00115i | 0 | 0 | 0 | ||||||||||||||
593.6 | 0 | 0 | 0 | 2.19984 | − | 0.400874i | 0 | 0.0735330 | + | 0.274429i | 0 | 0 | 0 | ||||||||||||||
917.1 | 0 | 0 | 0 | −2.09212 | − | 0.789333i | 0 | −0.341151 | + | 0.0914111i | 0 | 0 | 0 | ||||||||||||||
917.2 | 0 | 0 | 0 | −1.96505 | − | 1.06704i | 0 | −3.92738 | + | 1.05234i | 0 | 0 | 0 | ||||||||||||||
See all 24 embeddings |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
3.b | odd | 2 | 1 | inner |
45.k | odd | 12 | 1 | inner |
45.l | even | 12 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 1620.2.x.e | 24 | |
3.b | odd | 2 | 1 | inner | 1620.2.x.e | 24 | |
5.c | odd | 4 | 1 | 1620.2.x.f | 24 | ||
9.c | even | 3 | 1 | 1620.2.j.a | ✓ | 24 | |
9.c | even | 3 | 1 | 1620.2.x.f | 24 | ||
9.d | odd | 6 | 1 | 1620.2.j.a | ✓ | 24 | |
9.d | odd | 6 | 1 | 1620.2.x.f | 24 | ||
15.e | even | 4 | 1 | 1620.2.x.f | 24 | ||
45.k | odd | 12 | 1 | 1620.2.j.a | ✓ | 24 | |
45.k | odd | 12 | 1 | inner | 1620.2.x.e | 24 | |
45.l | even | 12 | 1 | 1620.2.j.a | ✓ | 24 | |
45.l | even | 12 | 1 | inner | 1620.2.x.e | 24 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
1620.2.j.a | ✓ | 24 | 9.c | even | 3 | 1 | |
1620.2.j.a | ✓ | 24 | 9.d | odd | 6 | 1 | |
1620.2.j.a | ✓ | 24 | 45.k | odd | 12 | 1 | |
1620.2.j.a | ✓ | 24 | 45.l | even | 12 | 1 | |
1620.2.x.e | 24 | 1.a | even | 1 | 1 | trivial | |
1620.2.x.e | 24 | 3.b | odd | 2 | 1 | inner | |
1620.2.x.e | 24 | 45.k | odd | 12 | 1 | inner | |
1620.2.x.e | 24 | 45.l | even | 12 | 1 | inner | |
1620.2.x.f | 24 | 5.c | odd | 4 | 1 | ||
1620.2.x.f | 24 | 9.c | even | 3 | 1 | ||
1620.2.x.f | 24 | 9.d | odd | 6 | 1 | ||
1620.2.x.f | 24 | 15.e | even | 4 | 1 |
Hecke kernels
This newform subspace can be constructed as the kernel of the linear operator \( T_{7}^{12} + 6 T_{7}^{11} + 24 T_{7}^{10} + 52 T_{7}^{9} - 150 T_{7}^{8} - 264 T_{7}^{7} + 992 T_{7}^{6} + \cdots + 64 \) acting on \(S_{2}^{\mathrm{new}}(1620, [\chi])\).