Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [867,6,Mod(1,867)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(867, base_ring=CyclotomicField(2))
chi = DirichletCharacter(H, H._module([0, 0]))
N = Newforms(chi, 6, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("867.1");
S:= CuspForms(chi, 6);
N := Newforms(S);
Level: | |||
Weight: | |||
Character orbit: | 867.a (trivial) |
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: | yes |
Analytic conductor: | |
Analytic rank: | |
Dimension: | |
Coefficient field: | |
comment: defining polynomial
gp: f.mod \\ as an extension of the character field
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Defining polynomial: |
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Coefficient ring: | |
Coefficient ring index: | |
Twist minimal: | no (minimal twist has level 51) |
Fricke sign: | |
Sato-Tate group: |
-expansion
comment: q-expansion
sage: f.q_expansion() # note that sage often uses an isomorphic number field
gp: mfcoefs(f, 20)
Coefficients of the -expansion are expressed in terms of a basis for the coefficient ring described below. We also show the integral -expansion of the trace form.
Basis of coefficient ring in terms of a root of
:
Embeddings
For each embedding of the coefficient field, the values 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 | ||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1.1 |
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−10.1538 | −9.00000 | 71.0987 | −87.4534 | 91.3838 | 148.200 | −396.998 | 81.0000 | 887.980 | ||||||||||||||||||||||||||||||
1.2 | −0.977811 | −9.00000 | −31.0439 | 8.49105 | 8.80030 | −164.461 | 61.6450 | 81.0000 | −8.30264 | |||||||||||||||||||||||||||||||
1.3 | 6.21760 | −9.00000 | 6.65857 | −86.8235 | −55.9584 | −10.7167 | −157.563 | 81.0000 | −539.834 | |||||||||||||||||||||||||||||||
1.4 | 9.91396 | −9.00000 | 66.2866 | 19.7859 | −89.2257 | −33.0231 | 339.916 | 81.0000 | 196.156 | |||||||||||||||||||||||||||||||
Atkin-Lehner signs
Sign | |
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Inner twists
This newform does not admit any (nontrivial) inner twists.
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 867.6.a.f | 4 | |
17.b | even | 2 | 1 | 51.6.a.c | ✓ | 4 | |
51.c | odd | 2 | 1 | 153.6.a.e | 4 | ||
68.d | odd | 2 | 1 | 816.6.a.o | 4 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
51.6.a.c | ✓ | 4 | 17.b | even | 2 | 1 | |
153.6.a.e | 4 | 51.c | odd | 2 | 1 | ||
816.6.a.o | 4 | 68.d | odd | 2 | 1 | ||
867.6.a.f | 4 | 1.a | even | 1 | 1 | trivial |
Hecke kernels
This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on :
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