Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [2548,2,Mod(1145,2548)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(2548, base_ring=CyclotomicField(6))
chi = DirichletCharacter(H, H._module([0, 4, 0]))
N = Newforms(chi, 2, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("2548.1145");
S:= CuspForms(chi, 2);
N := Newforms(S);
Level: | |||
Weight: | |||
Character orbit: | 2548.j (of order , degree , 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: | |
Analytic rank: | |
Dimension: | |
Relative dimension: | over |
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: | yes |
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
:
Character values
We give the values of on generators for .
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 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1145.1 |
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0 | −1.35995 | + | 2.35551i | 0 | −1.92853 | − | 3.34030i | 0 | 0 | 0 | −2.19894 | − | 3.80868i | 0 | ||||||||||||||||||||||||||||||||||||||||||||||||
1145.2 | 0 | −0.785107 | + | 1.35984i | 0 | 0.299524 | + | 0.518790i | 0 | 0 | 0 | 0.267215 | + | 0.462830i | 0 | |||||||||||||||||||||||||||||||||||||||||||||||||
1145.3 | 0 | −0.529566 | + | 0.917235i | 0 | −2.04647 | − | 3.54459i | 0 | 0 | 0 | 0.939121 | + | 1.62660i | 0 | |||||||||||||||||||||||||||||||||||||||||||||||||
1145.4 | 0 | 0.327521 | − | 0.567283i | 0 | 0.369059 | + | 0.639229i | 0 | 0 | 0 | 1.28546 | + | 2.22648i | 0 | |||||||||||||||||||||||||||||||||||||||||||||||||
1145.5 | 0 | 0.730846 | − | 1.26586i | 0 | −0.163891 | − | 0.283868i | 0 | 0 | 0 | 0.431728 | + | 0.747776i | 0 | |||||||||||||||||||||||||||||||||||||||||||||||||
1145.6 | 0 | 1.61626 | − | 2.79944i | 0 | −1.52970 | − | 2.64951i | 0 | 0 | 0 | −3.72458 | − | 6.45116i | 0 | |||||||||||||||||||||||||||||||||||||||||||||||||
1353.1 | 0 | −1.35995 | − | 2.35551i | 0 | −1.92853 | + | 3.34030i | 0 | 0 | 0 | −2.19894 | + | 3.80868i | 0 | |||||||||||||||||||||||||||||||||||||||||||||||||
1353.2 | 0 | −0.785107 | − | 1.35984i | 0 | 0.299524 | − | 0.518790i | 0 | 0 | 0 | 0.267215 | − | 0.462830i | 0 | |||||||||||||||||||||||||||||||||||||||||||||||||
1353.3 | 0 | −0.529566 | − | 0.917235i | 0 | −2.04647 | + | 3.54459i | 0 | 0 | 0 | 0.939121 | − | 1.62660i | 0 | |||||||||||||||||||||||||||||||||||||||||||||||||
1353.4 | 0 | 0.327521 | + | 0.567283i | 0 | 0.369059 | − | 0.639229i | 0 | 0 | 0 | 1.28546 | − | 2.22648i | 0 | |||||||||||||||||||||||||||||||||||||||||||||||||
1353.5 | 0 | 0.730846 | + | 1.26586i | 0 | −0.163891 | + | 0.283868i | 0 | 0 | 0 | 0.431728 | − | 0.747776i | 0 | |||||||||||||||||||||||||||||||||||||||||||||||||
1353.6 | 0 | 1.61626 | + | 2.79944i | 0 | −1.52970 | + | 2.64951i | 0 | 0 | 0 | −3.72458 | + | 6.45116i | 0 | |||||||||||||||||||||||||||||||||||||||||||||||||
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
7.c | even | 3 | 1 | inner |
Twists
By twisting character orbit | |||||||
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Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 2548.2.j.r | 12 | |
7.b | odd | 2 | 1 | 2548.2.j.s | 12 | ||
7.c | even | 3 | 1 | 2548.2.a.s | yes | 6 | |
7.c | even | 3 | 1 | inner | 2548.2.j.r | 12 | |
7.d | odd | 6 | 1 | 2548.2.a.r | ✓ | 6 | |
7.d | odd | 6 | 1 | 2548.2.j.s | 12 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
2548.2.a.r | ✓ | 6 | 7.d | odd | 6 | 1 | |
2548.2.a.s | yes | 6 | 7.c | even | 3 | 1 | |
2548.2.j.r | 12 | 1.a | even | 1 | 1 | trivial | |
2548.2.j.r | 12 | 7.c | even | 3 | 1 | inner | |
2548.2.j.s | 12 | 7.b | odd | 2 | 1 | ||
2548.2.j.s | 12 | 7.d | odd | 6 | 1 |
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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