Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [520,2,Mod(261,520)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(520, base_ring=CyclotomicField(2))
chi = DirichletCharacter(H, H._module([0, 1, 0, 0]))
N = Newforms(chi, 2, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("520.261");
S:= CuspForms(chi, 2);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 520 = 2^{3} \cdot 5 \cdot 13 \) |
Weight: | \( k \) | \(=\) | \( 2 \) |
Character orbit: | \([\chi]\) | \(=\) | 520.g (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: | \(4.15222090511\) |
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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
261.1 | −1.41298 | − | 0.0590782i | − | 0.566638i | 1.99302 | + | 0.166952i | − | 1.00000i | −0.0334759 | + | 0.800647i | 3.79026 | −2.80623 | − | 0.353644i | 2.67892 | −0.0590782 | + | 1.41298i | ||||||
261.2 | −1.41298 | + | 0.0590782i | 0.566638i | 1.99302 | − | 0.166952i | 1.00000i | −0.0334759 | − | 0.800647i | 3.79026 | −2.80623 | + | 0.353644i | 2.67892 | −0.0590782 | − | 1.41298i | ||||||||
261.3 | −1.25921 | − | 0.643738i | − | 1.77634i | 1.17120 | + | 1.62120i | 1.00000i | −1.14350 | + | 2.23678i | 0.311706 | −0.431160 | − | 2.79537i | −0.155378 | 0.643738 | − | 1.25921i | |||||||
261.4 | −1.25921 | + | 0.643738i | 1.77634i | 1.17120 | − | 1.62120i | − | 1.00000i | −1.14350 | − | 2.23678i | 0.311706 | −0.431160 | + | 2.79537i | −0.155378 | 0.643738 | + | 1.25921i | |||||||
261.5 | −0.952203 | − | 1.04561i | − | 1.78588i | −0.186619 | + | 1.99127i | − | 1.00000i | −1.86734 | + | 1.70052i | 2.12592 | 2.25980 | − | 1.70097i | −0.189352 | −1.04561 | + | 0.952203i | ||||||
261.6 | −0.952203 | + | 1.04561i | 1.78588i | −0.186619 | − | 1.99127i | 1.00000i | −1.86734 | − | 1.70052i | 2.12592 | 2.25980 | + | 1.70097i | −0.189352 | −1.04561 | − | 0.952203i | ||||||||
261.7 | −0.699924 | − | 1.22886i | − | 1.18763i | −1.02021 | + | 1.72022i | 1.00000i | −1.45944 | + | 0.831254i | −1.83473 | 2.82799 | + | 0.0496750i | 1.58953 | 1.22886 | − | 0.699924i | |||||||
261.8 | −0.699924 | + | 1.22886i | 1.18763i | −1.02021 | − | 1.72022i | − | 1.00000i | −1.45944 | − | 0.831254i | −1.83473 | 2.82799 | − | 0.0496750i | 1.58953 | 1.22886 | + | 0.699924i | |||||||
261.9 | −0.556931 | − | 1.29993i | 3.15202i | −1.37966 | + | 1.44795i | − | 1.00000i | 4.09742 | − | 1.75546i | −0.934859 | 2.65061 | + | 0.987055i | −6.93524 | −1.29993 | + | 0.556931i | |||||||
261.10 | −0.556931 | + | 1.29993i | − | 3.15202i | −1.37966 | − | 1.44795i | 1.00000i | 4.09742 | + | 1.75546i | −0.934859 | 2.65061 | − | 0.987055i | −6.93524 | −1.29993 | − | 0.556931i | |||||||
261.11 | −0.0177740 | − | 1.41410i | − | 2.22897i | −1.99937 | + | 0.0502684i | − | 1.00000i | −3.15199 | + | 0.0396175i | −3.77941 | 0.106621 | + | 2.82642i | −1.96829 | −1.41410 | + | 0.0177740i | ||||||
261.12 | −0.0177740 | + | 1.41410i | 2.22897i | −1.99937 | − | 0.0502684i | 1.00000i | −3.15199 | − | 0.0396175i | −3.77941 | 0.106621 | − | 2.82642i | −1.96829 | −1.41410 | − | 0.0177740i | ||||||||
261.13 | 0.179690 | − | 1.40275i | 2.75242i | −1.93542 | − | 0.504121i | 1.00000i | 3.86097 | + | 0.494583i | 3.52133 | −1.05493 | + | 2.62433i | −4.57584 | 1.40275 | + | 0.179690i | ||||||||
261.14 | 0.179690 | + | 1.40275i | − | 2.75242i | −1.93542 | + | 0.504121i | − | 1.00000i | 3.86097 | − | 0.494583i | 3.52133 | −1.05493 | − | 2.62433i | −4.57584 | 1.40275 | − | 0.179690i | ||||||
261.15 | 0.866990 | − | 1.11729i | 2.31565i | −0.496657 | − | 1.93735i | − | 1.00000i | 2.58724 | + | 2.00764i | 4.14961 | −2.59517 | − | 1.12476i | −2.36221 | −1.11729 | − | 0.866990i | |||||||
261.16 | 0.866990 | + | 1.11729i | − | 2.31565i | −0.496657 | + | 1.93735i | 1.00000i | 2.58724 | − | 2.00764i | 4.14961 | −2.59517 | + | 1.12476i | −2.36221 | −1.11729 | + | 0.866990i | |||||||
261.17 | 1.09076 | − | 0.900136i | 0.561263i | 0.379509 | − | 1.96366i | 1.00000i | 0.505213 | + | 0.612203i | −0.350098 | −1.35361 | − | 2.48349i | 2.68498 | 0.900136 | + | 1.09076i | ||||||||
261.18 | 1.09076 | + | 0.900136i | − | 0.561263i | 0.379509 | + | 1.96366i | − | 1.00000i | 0.505213 | − | 0.612203i | −0.350098 | −1.35361 | + | 2.48349i | 2.68498 | 0.900136 | − | 1.09076i | ||||||
261.19 | 1.15314 | − | 0.818700i | − | 1.05646i | 0.659461 | − | 1.88815i | 1.00000i | −0.864921 | − | 1.21824i | 4.50891 | −0.785377 | − | 2.71720i | 1.88390 | 0.818700 | + | 1.15314i | |||||||
261.20 | 1.15314 | + | 0.818700i | 1.05646i | 0.659461 | + | 1.88815i | − | 1.00000i | −0.864921 | + | 1.21824i | 4.50891 | −0.785377 | + | 2.71720i | 1.88390 | 0.818700 | − | 1.15314i | |||||||
See all 24 embeddings |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
8.b | even | 2 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 520.2.g.b | ✓ | 24 |
4.b | odd | 2 | 1 | 2080.2.g.a | 24 | ||
8.b | even | 2 | 1 | inner | 520.2.g.b | ✓ | 24 |
8.d | odd | 2 | 1 | 2080.2.g.a | 24 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
520.2.g.b | ✓ | 24 | 1.a | even | 1 | 1 | trivial |
520.2.g.b | ✓ | 24 | 8.b | even | 2 | 1 | inner |
2080.2.g.a | 24 | 4.b | odd | 2 | 1 | ||
2080.2.g.a | 24 | 8.d | odd | 2 | 1 |
Hecke kernels
This newform subspace can be constructed as the kernel of the linear operator \( T_{3}^{24} + 48 T_{3}^{22} + 980 T_{3}^{20} + 11152 T_{3}^{18} + 77936 T_{3}^{16} + 347712 T_{3}^{14} + \cdots + 4096 \) acting on \(S_{2}^{\mathrm{new}}(520, [\chi])\).