Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [390,2,Mod(7,390)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(390, base_ring=CyclotomicField(12))
chi = DirichletCharacter(H, H._module([0, 3, 11]))
N = Newforms(chi, 2, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("390.7");
S:= CuspForms(chi, 2);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 390 = 2 \cdot 3 \cdot 5 \cdot 13 \) |
Weight: | \( k \) | \(=\) | \( 2 \) |
Character orbit: | \([\chi]\) | \(=\) | 390.bd (of order \(12\), degree \(4\), 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: | \(3.11416567883\) |
Analytic rank: | \(0\) |
Dimension: | \(32\) |
Relative dimension: | \(8\) 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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
7.1 | −0.866025 | − | 0.500000i | −0.258819 | − | 0.965926i | 0.500000 | + | 0.866025i | −1.51030 | − | 1.64894i | −0.258819 | + | 0.965926i | −2.29844 | − | 3.98101i | − | 1.00000i | −0.866025 | + | 0.500000i | 0.483485 | + | 2.18317i | |
7.2 | −0.866025 | − | 0.500000i | −0.258819 | − | 0.965926i | 0.500000 | + | 0.866025i | −1.27660 | + | 1.83584i | −0.258819 | + | 0.965926i | 0.484219 | + | 0.838691i | − | 1.00000i | −0.866025 | + | 0.500000i | 2.02348 | − | 0.951586i | |
7.3 | −0.866025 | − | 0.500000i | −0.258819 | − | 0.965926i | 0.500000 | + | 0.866025i | −0.0407428 | − | 2.23570i | −0.258819 | + | 0.965926i | 1.23545 | + | 2.13987i | − | 1.00000i | −0.866025 | + | 0.500000i | −1.08256 | + | 1.95654i | |
7.4 | −0.866025 | − | 0.500000i | −0.258819 | − | 0.965926i | 0.500000 | + | 0.866025i | 0.895783 | + | 2.04880i | −0.258819 | + | 0.965926i | −0.804897 | − | 1.39412i | − | 1.00000i | −0.866025 | + | 0.500000i | 0.248628 | − | 2.22220i | |
7.5 | −0.866025 | − | 0.500000i | 0.258819 | + | 0.965926i | 0.500000 | + | 0.866025i | −1.86235 | + | 1.23760i | 0.258819 | − | 0.965926i | −1.84360 | − | 3.19321i | − | 1.00000i | −0.866025 | + | 0.500000i | 2.23164 | − | 0.140614i | |
7.6 | −0.866025 | − | 0.500000i | 0.258819 | + | 0.965926i | 0.500000 | + | 0.866025i | −0.473708 | − | 2.18531i | 0.258819 | − | 0.965926i | 1.36023 | + | 2.35599i | − | 1.00000i | −0.866025 | + | 0.500000i | −0.682415 | + | 2.12939i | |
7.7 | −0.866025 | − | 0.500000i | 0.258819 | + | 0.965926i | 0.500000 | + | 0.866025i | 2.03189 | + | 0.933504i | 0.258819 | − | 0.965926i | 2.15872 | + | 3.73901i | − | 1.00000i | −0.866025 | + | 0.500000i | −1.29291 | − | 1.82438i | |
7.8 | −0.866025 | − | 0.500000i | 0.258819 | + | 0.965926i | 0.500000 | + | 0.866025i | 2.23602 | + | 0.0142140i | 0.258819 | − | 0.965926i | −2.02374 | − | 3.50522i | − | 1.00000i | −0.866025 | + | 0.500000i | −1.92935 | − | 1.13032i | |
37.1 | 0.866025 | − | 0.500000i | −0.965926 | − | 0.258819i | 0.500000 | − | 0.866025i | −2.10895 | − | 0.743195i | −0.965926 | + | 0.258819i | 0.0343211 | − | 0.0594459i | − | 1.00000i | 0.866025 | + | 0.500000i | −2.19800 | + | 0.410849i | |
37.2 | 0.866025 | − | 0.500000i | −0.965926 | − | 0.258819i | 0.500000 | − | 0.866025i | −1.84366 | + | 1.26528i | −0.965926 | + | 0.258819i | −1.86936 | + | 3.23783i | − | 1.00000i | 0.866025 | + | 0.500000i | −0.964013 | + | 2.01759i | |
37.3 | 0.866025 | − | 0.500000i | −0.965926 | − | 0.258819i | 0.500000 | − | 0.866025i | 1.50593 | − | 1.65293i | −0.965926 | + | 0.258819i | 0.627513 | − | 1.08688i | − | 1.00000i | 0.866025 | + | 0.500000i | 0.477706 | − | 2.18444i | |
37.4 | 0.866025 | − | 0.500000i | −0.965926 | − | 0.258819i | 0.500000 | − | 0.866025i | 1.92904 | + | 1.13085i | −0.965926 | + | 0.258819i | 0.141701 | − | 0.245433i | − | 1.00000i | 0.866025 | + | 0.500000i | 2.23602 | + | 0.0148223i | |
37.5 | 0.866025 | − | 0.500000i | 0.965926 | + | 0.258819i | 0.500000 | − | 0.866025i | −1.95695 | + | 1.08182i | 0.965926 | − | 0.258819i | 2.37716 | − | 4.11737i | − | 1.00000i | 0.866025 | + | 0.500000i | −1.15386 | + | 1.91536i | |
37.6 | 0.866025 | − | 0.500000i | 0.965926 | + | 0.258819i | 0.500000 | − | 0.866025i | −0.900968 | − | 2.04652i | 0.965926 | − | 0.258819i | 0.0298867 | − | 0.0517653i | − | 1.00000i | 0.866025 | + | 0.500000i | −1.80352 | − | 1.32186i | |
37.7 | 0.866025 | − | 0.500000i | 0.965926 | + | 0.258819i | 0.500000 | − | 0.866025i | 1.30715 | + | 1.81421i | 0.965926 | − | 0.258819i | −0.717312 | + | 1.24242i | − | 1.00000i | 0.866025 | + | 0.500000i | 2.03913 | + | 0.917581i | |
37.8 | 0.866025 | − | 0.500000i | 0.965926 | + | 0.258819i | 0.500000 | − | 0.866025i | 2.06841 | − | 0.849511i | 0.965926 | − | 0.258819i | 1.10814 | − | 1.91935i | − | 1.00000i | 0.866025 | + | 0.500000i | 1.36654 | − | 1.76990i | |
223.1 | −0.866025 | + | 0.500000i | −0.258819 | + | 0.965926i | 0.500000 | − | 0.866025i | −1.51030 | + | 1.64894i | −0.258819 | − | 0.965926i | −2.29844 | + | 3.98101i | 1.00000i | −0.866025 | − | 0.500000i | 0.483485 | − | 2.18317i | ||
223.2 | −0.866025 | + | 0.500000i | −0.258819 | + | 0.965926i | 0.500000 | − | 0.866025i | −1.27660 | − | 1.83584i | −0.258819 | − | 0.965926i | 0.484219 | − | 0.838691i | 1.00000i | −0.866025 | − | 0.500000i | 2.02348 | + | 0.951586i | ||
223.3 | −0.866025 | + | 0.500000i | −0.258819 | + | 0.965926i | 0.500000 | − | 0.866025i | −0.0407428 | + | 2.23570i | −0.258819 | − | 0.965926i | 1.23545 | − | 2.13987i | 1.00000i | −0.866025 | − | 0.500000i | −1.08256 | − | 1.95654i | ||
223.4 | −0.866025 | + | 0.500000i | −0.258819 | + | 0.965926i | 0.500000 | − | 0.866025i | 0.895783 | − | 2.04880i | −0.258819 | − | 0.965926i | −0.804897 | + | 1.39412i | 1.00000i | −0.866025 | − | 0.500000i | 0.248628 | + | 2.22220i | ||
See all 32 embeddings |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
65.t | even | 12 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 390.2.bd.c | ✓ | 32 |
5.c | odd | 4 | 1 | 390.2.bn.c | yes | 32 | |
13.f | odd | 12 | 1 | 390.2.bn.c | yes | 32 | |
65.t | even | 12 | 1 | inner | 390.2.bd.c | ✓ | 32 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
390.2.bd.c | ✓ | 32 | 1.a | even | 1 | 1 | trivial |
390.2.bd.c | ✓ | 32 | 65.t | even | 12 | 1 | inner |
390.2.bn.c | yes | 32 | 5.c | odd | 4 | 1 | |
390.2.bn.c | yes | 32 | 13.f | odd | 12 | 1 |
Hecke kernels
This newform subspace can be constructed as the kernel of the linear operator \( T_{7}^{32} + 66 T_{7}^{30} - 24 T_{7}^{29} + 2699 T_{7}^{28} - 1516 T_{7}^{27} + 69962 T_{7}^{26} + \cdots + 65536 \) acting on \(S_{2}^{\mathrm{new}}(390, [\chi])\).