Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [800,2,Mod(63,800)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(800, base_ring=CyclotomicField(20))
chi = DirichletCharacter(H, H._module([10, 0, 19]))
N = Newforms(chi, 2, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("800.63");
S:= CuspForms(chi, 2);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 800 = 2^{5} \cdot 5^{2} \) |
Weight: | \( k \) | \(=\) | \( 2 \) |
Character orbit: | \([\chi]\) | \(=\) | 800.bq (of order \(20\), degree \(8\), 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: | \(6.38803216170\) |
Analytic rank: | \(0\) |
Dimension: | \(56\) |
Relative dimension: | \(7\) over \(\Q(\zeta_{20})\) |
Twist minimal: | yes |
Sato-Tate group: | $\mathrm{SU}(2)[C_{20}]$ |
$q$-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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
63.1 | 0 | −2.26230 | − | 1.15270i | 0 | −0.350884 | + | 2.20837i | 0 | −2.25510 | − | 2.25510i | 0 | 2.02593 | + | 2.78846i | 0 | ||||||||||
63.2 | 0 | −1.89091 | − | 0.963465i | 0 | −1.89826 | − | 1.18178i | 0 | 2.21349 | + | 2.21349i | 0 | 0.883909 | + | 1.21660i | 0 | ||||||||||
63.3 | 0 | −1.46116 | − | 0.744497i | 0 | 1.78517 | − | 1.34654i | 0 | 0.112121 | + | 0.112121i | 0 | −0.182649 | − | 0.251395i | 0 | ||||||||||
63.4 | 0 | 0.483226 | + | 0.246216i | 0 | 0.793395 | + | 2.09058i | 0 | 1.92115 | + | 1.92115i | 0 | −1.59047 | − | 2.18909i | 0 | ||||||||||
63.5 | 0 | 0.988556 | + | 0.503694i | 0 | −2.10284 | + | 0.760299i | 0 | −1.41729 | − | 1.41729i | 0 | −1.03982 | − | 1.43119i | 0 | ||||||||||
63.6 | 0 | 1.96776 | + | 1.00262i | 0 | −0.797421 | − | 2.08905i | 0 | 3.41975 | + | 3.41975i | 0 | 1.10348 | + | 1.51880i | 0 | ||||||||||
63.7 | 0 | 2.17482 | + | 1.10813i | 0 | 0.977747 | − | 2.01097i | 0 | −2.71003 | − | 2.71003i | 0 | 1.73855 | + | 2.39291i | 0 | ||||||||||
127.1 | 0 | −2.26230 | + | 1.15270i | 0 | −0.350884 | − | 2.20837i | 0 | −2.25510 | + | 2.25510i | 0 | 2.02593 | − | 2.78846i | 0 | ||||||||||
127.2 | 0 | −1.89091 | + | 0.963465i | 0 | −1.89826 | + | 1.18178i | 0 | 2.21349 | − | 2.21349i | 0 | 0.883909 | − | 1.21660i | 0 | ||||||||||
127.3 | 0 | −1.46116 | + | 0.744497i | 0 | 1.78517 | + | 1.34654i | 0 | 0.112121 | − | 0.112121i | 0 | −0.182649 | + | 0.251395i | 0 | ||||||||||
127.4 | 0 | 0.483226 | − | 0.246216i | 0 | 0.793395 | − | 2.09058i | 0 | 1.92115 | − | 1.92115i | 0 | −1.59047 | + | 2.18909i | 0 | ||||||||||
127.5 | 0 | 0.988556 | − | 0.503694i | 0 | −2.10284 | − | 0.760299i | 0 | −1.41729 | + | 1.41729i | 0 | −1.03982 | + | 1.43119i | 0 | ||||||||||
127.6 | 0 | 1.96776 | − | 1.00262i | 0 | −0.797421 | + | 2.08905i | 0 | 3.41975 | − | 3.41975i | 0 | 1.10348 | − | 1.51880i | 0 | ||||||||||
127.7 | 0 | 2.17482 | − | 1.10813i | 0 | 0.977747 | + | 2.01097i | 0 | −2.71003 | + | 2.71003i | 0 | 1.73855 | − | 2.39291i | 0 | ||||||||||
223.1 | 0 | −1.18617 | − | 2.32800i | 0 | 0.966683 | + | 2.01631i | 0 | 0.0730276 | + | 0.0730276i | 0 | −2.24921 | + | 3.09578i | 0 | ||||||||||
223.2 | 0 | −0.802897 | − | 1.57577i | 0 | 1.58800 | − | 1.57424i | 0 | 1.63701 | + | 1.63701i | 0 | −0.0750643 | + | 0.103317i | 0 | ||||||||||
223.3 | 0 | −0.640680 | − | 1.25741i | 0 | −2.21664 | + | 0.294142i | 0 | 1.10768 | + | 1.10768i | 0 | 0.592758 | − | 0.815862i | 0 | ||||||||||
223.4 | 0 | 0.0719261 | + | 0.141163i | 0 | −0.475770 | + | 2.18487i | 0 | −2.98667 | − | 2.98667i | 0 | 1.74860 | − | 2.40674i | 0 | ||||||||||
223.5 | 0 | 0.272462 | + | 0.534736i | 0 | 1.53374 | − | 1.62716i | 0 | −2.42260 | − | 2.42260i | 0 | 1.55165 | − | 2.13566i | 0 | ||||||||||
223.6 | 0 | 0.821892 | + | 1.61305i | 0 | −1.22855 | − | 1.86833i | 0 | 1.10068 | + | 1.10068i | 0 | −0.163081 | + | 0.224462i | 0 | ||||||||||
See all 56 embeddings |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
100.l | even | 20 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 800.2.bq.b | yes | 56 |
4.b | odd | 2 | 1 | 800.2.bq.a | ✓ | 56 | |
25.f | odd | 20 | 1 | 800.2.bq.a | ✓ | 56 | |
100.l | even | 20 | 1 | inner | 800.2.bq.b | yes | 56 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
800.2.bq.a | ✓ | 56 | 4.b | odd | 2 | 1 | |
800.2.bq.a | ✓ | 56 | 25.f | odd | 20 | 1 | |
800.2.bq.b | yes | 56 | 1.a | even | 1 | 1 | trivial |
800.2.bq.b | yes | 56 | 100.l | even | 20 | 1 | inner |
Hecke kernels
This newform subspace can be constructed as the kernel of the linear operator \( T_{3}^{56} + 14 T_{3}^{53} - 99 T_{3}^{52} - 164 T_{3}^{51} - 82 T_{3}^{50} - 770 T_{3}^{49} + \cdots + 87684496 \) acting on \(S_{2}^{\mathrm{new}}(800, [\chi])\).