Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [2775,2,Mod(1,2775)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(2775, base_ring=CyclotomicField(2))
chi = DirichletCharacter(H, H._module([0, 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("2775.1");
S:= CuspForms(chi, 2);
N := Newforms(S);
Level: | |||
Weight: | |||
Character orbit: | 2775.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: | 6.6.297869800.1 |
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 |
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 | ||||||||||||||||||||||||||||||||||||||||||||||
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1.1 |
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−2.69361 | −1.00000 | 5.25551 | 0 | 2.69361 | 2.97039 | −8.76907 | 1.00000 | 0 | ||||||||||||||||||||||||||||||||||||
1.2 | −2.52727 | −1.00000 | 4.38709 | 0 | 2.52727 | −3.70785 | −6.03281 | 1.00000 | 0 | |||||||||||||||||||||||||||||||||||||
1.3 | −1.72206 | −1.00000 | 0.965489 | 0 | 1.72206 | −0.768516 | 1.78149 | 1.00000 | 0 | |||||||||||||||||||||||||||||||||||||
1.4 | −0.541409 | −1.00000 | −1.70688 | 0 | 0.541409 | 3.40524 | 2.00694 | 1.00000 | 0 | |||||||||||||||||||||||||||||||||||||
1.5 | 1.02507 | −1.00000 | −0.949227 | 0 | −1.02507 | −1.59014 | −3.02317 | 1.00000 | 0 | |||||||||||||||||||||||||||||||||||||
1.6 | 2.45927 | −1.00000 | 4.04801 | 0 | −2.45927 | −1.30912 | 5.03662 | 1.00000 | 0 | |||||||||||||||||||||||||||||||||||||
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 | 2775.2.a.be | ✓ | 6 |
3.b | odd | 2 | 1 | 8325.2.a.cl | 6 | ||
5.b | even | 2 | 1 | 2775.2.a.bf | yes | 6 | |
15.d | odd | 2 | 1 | 8325.2.a.ci | 6 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
2775.2.a.be | ✓ | 6 | 1.a | even | 1 | 1 | trivial |
2775.2.a.bf | yes | 6 | 5.b | even | 2 | 1 | |
8325.2.a.ci | 6 | 15.d | odd | 2 | 1 | ||
8325.2.a.cl | 6 | 3.b | odd | 2 | 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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