Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [216,4,Mod(107,216)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(216, base_ring=CyclotomicField(2))
chi = DirichletCharacter(H, H._module([1, 1, 1]))
N = Newforms(chi, 4, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("216.107");
S:= CuspForms(chi, 4);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 216 = 2^{3} \cdot 3^{3} \) |
Weight: | \( k \) | \(=\) | \( 4 \) |
Character orbit: | \([\chi]\) | \(=\) | 216.f (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: | \(12.7444125612\) |
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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
107.1 | −2.79380 | − | 0.441249i | 0 | 7.61060 | + | 2.46552i | −5.34627 | 0 | − | 31.3735i | −20.1746 | − | 10.2463i | 0 | 14.9364 | + | 2.35904i | |||||||||
107.2 | −2.79380 | + | 0.441249i | 0 | 7.61060 | − | 2.46552i | −5.34627 | 0 | 31.3735i | −20.1746 | + | 10.2463i | 0 | 14.9364 | − | 2.35904i | ||||||||||
107.3 | −2.61666 | − | 1.07383i | 0 | 5.69377 | + | 5.61969i | 9.32272 | 0 | − | 5.38753i | −8.86405 | − | 20.8190i | 0 | −24.3943 | − | 10.0110i | |||||||||
107.4 | −2.61666 | + | 1.07383i | 0 | 5.69377 | − | 5.61969i | 9.32272 | 0 | 5.38753i | −8.86405 | + | 20.8190i | 0 | −24.3943 | + | 10.0110i | ||||||||||
107.5 | −2.34682 | − | 1.57875i | 0 | 3.01510 | + | 7.41007i | −21.0227 | 0 | 25.8057i | 4.62275 | − | 22.1502i | 0 | 49.3365 | + | 33.1896i | ||||||||||
107.6 | −2.34682 | + | 1.57875i | 0 | 3.01510 | − | 7.41007i | −21.0227 | 0 | − | 25.8057i | 4.62275 | + | 22.1502i | 0 | 49.3365 | − | 33.1896i | |||||||||
107.7 | −1.97843 | − | 2.02134i | 0 | −0.171650 | + | 7.99816i | 12.8173 | 0 | 12.3152i | 16.5066 | − | 15.4768i | 0 | −25.3581 | − | 25.9081i | ||||||||||
107.8 | −1.97843 | + | 2.02134i | 0 | −0.171650 | − | 7.99816i | 12.8173 | 0 | − | 12.3152i | 16.5066 | + | 15.4768i | 0 | −25.3581 | + | 25.9081i | |||||||||
107.9 | −0.910261 | − | 2.67795i | 0 | −6.34285 | + | 4.87527i | 0.898373 | 0 | − | 20.7150i | 18.8294 | + | 12.5481i | 0 | −0.817754 | − | 2.40580i | |||||||||
107.10 | −0.910261 | + | 2.67795i | 0 | −6.34285 | − | 4.87527i | 0.898373 | 0 | 20.7150i | 18.8294 | − | 12.5481i | 0 | −0.817754 | + | 2.40580i | ||||||||||
107.11 | −0.772990 | − | 2.72075i | 0 | −6.80497 | + | 4.20623i | −13.3214 | 0 | 1.40229i | 16.7043 | + | 15.2633i | 0 | 10.2973 | + | 36.2443i | ||||||||||
107.12 | −0.772990 | + | 2.72075i | 0 | −6.80497 | − | 4.20623i | −13.3214 | 0 | − | 1.40229i | 16.7043 | − | 15.2633i | 0 | 10.2973 | − | 36.2443i | |||||||||
107.13 | 0.772990 | − | 2.72075i | 0 | −6.80497 | − | 4.20623i | 13.3214 | 0 | − | 1.40229i | −16.7043 | + | 15.2633i | 0 | 10.2973 | − | 36.2443i | |||||||||
107.14 | 0.772990 | + | 2.72075i | 0 | −6.80497 | + | 4.20623i | 13.3214 | 0 | 1.40229i | −16.7043 | − | 15.2633i | 0 | 10.2973 | + | 36.2443i | ||||||||||
107.15 | 0.910261 | − | 2.67795i | 0 | −6.34285 | − | 4.87527i | −0.898373 | 0 | 20.7150i | −18.8294 | + | 12.5481i | 0 | −0.817754 | + | 2.40580i | ||||||||||
107.16 | 0.910261 | + | 2.67795i | 0 | −6.34285 | + | 4.87527i | −0.898373 | 0 | − | 20.7150i | −18.8294 | − | 12.5481i | 0 | −0.817754 | − | 2.40580i | |||||||||
107.17 | 1.97843 | − | 2.02134i | 0 | −0.171650 | − | 7.99816i | −12.8173 | 0 | − | 12.3152i | −16.5066 | − | 15.4768i | 0 | −25.3581 | + | 25.9081i | |||||||||
107.18 | 1.97843 | + | 2.02134i | 0 | −0.171650 | + | 7.99816i | −12.8173 | 0 | 12.3152i | −16.5066 | + | 15.4768i | 0 | −25.3581 | − | 25.9081i | ||||||||||
107.19 | 2.34682 | − | 1.57875i | 0 | 3.01510 | − | 7.41007i | 21.0227 | 0 | − | 25.8057i | −4.62275 | − | 22.1502i | 0 | 49.3365 | − | 33.1896i | |||||||||
107.20 | 2.34682 | + | 1.57875i | 0 | 3.01510 | + | 7.41007i | 21.0227 | 0 | 25.8057i | −4.62275 | + | 22.1502i | 0 | 49.3365 | + | 33.1896i | ||||||||||
See all 24 embeddings |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
3.b | odd | 2 | 1 | inner |
8.d | odd | 2 | 1 | inner |
24.f | even | 2 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 216.4.f.b | ✓ | 24 |
3.b | odd | 2 | 1 | inner | 216.4.f.b | ✓ | 24 |
4.b | odd | 2 | 1 | 864.4.f.b | 24 | ||
8.b | even | 2 | 1 | 864.4.f.b | 24 | ||
8.d | odd | 2 | 1 | inner | 216.4.f.b | ✓ | 24 |
12.b | even | 2 | 1 | 864.4.f.b | 24 | ||
24.f | even | 2 | 1 | inner | 216.4.f.b | ✓ | 24 |
24.h | odd | 2 | 1 | 864.4.f.b | 24 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
216.4.f.b | ✓ | 24 | 1.a | even | 1 | 1 | trivial |
216.4.f.b | ✓ | 24 | 3.b | odd | 2 | 1 | inner |
216.4.f.b | ✓ | 24 | 8.d | odd | 2 | 1 | inner |
216.4.f.b | ✓ | 24 | 24.f | even | 2 | 1 | inner |
864.4.f.b | 24 | 4.b | odd | 2 | 1 | ||
864.4.f.b | 24 | 8.b | even | 2 | 1 | ||
864.4.f.b | 24 | 12.b | even | 2 | 1 | ||
864.4.f.b | 24 | 24.h | odd | 2 | 1 |
Hecke kernels
This newform subspace can be constructed as the kernel of the linear operator \( T_{5}^{12} - 900T_{5}^{10} + 273912T_{5}^{8} - 35862912T_{5}^{6} + 1964503872T_{5}^{4} - 33570167040T_{5}^{2} + 25832756736 \) acting on \(S_{4}^{\mathrm{new}}(216, [\chi])\).