Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [216,4,Mod(109,216)]
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([0, 1, 0]))
N = Newforms(chi, 4, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("216.109");
S:= CuspForms(chi, 4);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 216 = 2^{3} \cdot 3^{3} \) |
Weight: | \( k \) | \(=\) | \( 4 \) |
Character orbit: | \([\chi]\) | \(=\) | 216.d (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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
109.1 | −2.78622 | − | 0.486831i | 0 | 7.52599 | + | 2.71283i | − | 6.66243i | 0 | 6.63758 | −19.6483 | − | 11.2224i | 0 | −3.24348 | + | 18.5630i | |||||||||
109.2 | −2.78622 | + | 0.486831i | 0 | 7.52599 | − | 2.71283i | 6.66243i | 0 | 6.63758 | −19.6483 | + | 11.2224i | 0 | −3.24348 | − | 18.5630i | ||||||||||
109.3 | −2.30947 | − | 1.63289i | 0 | 2.66733 | + | 7.54224i | 4.37724i | 0 | −27.3085 | 6.15555 | − | 21.7740i | 0 | 7.14757 | − | 10.1091i | ||||||||||
109.4 | −2.30947 | + | 1.63289i | 0 | 2.66733 | − | 7.54224i | − | 4.37724i | 0 | −27.3085 | 6.15555 | + | 21.7740i | 0 | 7.14757 | + | 10.1091i | |||||||||
109.5 | −2.07264 | − | 1.92462i | 0 | 0.591659 | + | 7.97809i | 19.8612i | 0 | 0.905321 | 14.1285 | − | 17.6744i | 0 | 38.2252 | − | 41.1650i | ||||||||||
109.6 | −2.07264 | + | 1.92462i | 0 | 0.591659 | − | 7.97809i | − | 19.8612i | 0 | 0.905321 | 14.1285 | + | 17.6744i | 0 | 38.2252 | + | 41.1650i | |||||||||
109.7 | −1.94701 | − | 2.05162i | 0 | −0.418326 | + | 7.98906i | − | 13.3613i | 0 | 33.2593 | 17.2050 | − | 14.6965i | 0 | −27.4125 | + | 26.0146i | |||||||||
109.8 | −1.94701 | + | 2.05162i | 0 | −0.418326 | − | 7.98906i | 13.3613i | 0 | 33.2593 | 17.2050 | + | 14.6965i | 0 | −27.4125 | − | 26.0146i | ||||||||||
109.9 | −1.09748 | − | 2.60682i | 0 | −5.59106 | + | 5.72190i | − | 14.8953i | 0 | −21.8159 | 21.0521 | + | 8.29520i | 0 | −38.8293 | + | 16.3473i | |||||||||
109.10 | −1.09748 | + | 2.60682i | 0 | −5.59106 | − | 5.72190i | 14.8953i | 0 | −21.8159 | 21.0521 | − | 8.29520i | 0 | −38.8293 | − | 16.3473i | ||||||||||
109.11 | −0.334967 | − | 2.80852i | 0 | −7.77559 | + | 1.88152i | 6.44911i | 0 | 8.32217 | 7.88887 | + | 21.2077i | 0 | 18.1125 | − | 2.16024i | ||||||||||
109.12 | −0.334967 | + | 2.80852i | 0 | −7.77559 | − | 1.88152i | − | 6.44911i | 0 | 8.32217 | 7.88887 | − | 21.2077i | 0 | 18.1125 | + | 2.16024i | |||||||||
109.13 | 0.334967 | − | 2.80852i | 0 | −7.77559 | − | 1.88152i | 6.44911i | 0 | 8.32217 | −7.88887 | + | 21.2077i | 0 | 18.1125 | + | 2.16024i | ||||||||||
109.14 | 0.334967 | + | 2.80852i | 0 | −7.77559 | + | 1.88152i | − | 6.44911i | 0 | 8.32217 | −7.88887 | − | 21.2077i | 0 | 18.1125 | − | 2.16024i | |||||||||
109.15 | 1.09748 | − | 2.60682i | 0 | −5.59106 | − | 5.72190i | − | 14.8953i | 0 | −21.8159 | −21.0521 | + | 8.29520i | 0 | −38.8293 | − | 16.3473i | |||||||||
109.16 | 1.09748 | + | 2.60682i | 0 | −5.59106 | + | 5.72190i | 14.8953i | 0 | −21.8159 | −21.0521 | − | 8.29520i | 0 | −38.8293 | + | 16.3473i | ||||||||||
109.17 | 1.94701 | − | 2.05162i | 0 | −0.418326 | − | 7.98906i | − | 13.3613i | 0 | 33.2593 | −17.2050 | − | 14.6965i | 0 | −27.4125 | − | 26.0146i | |||||||||
109.18 | 1.94701 | + | 2.05162i | 0 | −0.418326 | + | 7.98906i | 13.3613i | 0 | 33.2593 | −17.2050 | + | 14.6965i | 0 | −27.4125 | + | 26.0146i | ||||||||||
109.19 | 2.07264 | − | 1.92462i | 0 | 0.591659 | − | 7.97809i | 19.8612i | 0 | 0.905321 | −14.1285 | − | 17.6744i | 0 | 38.2252 | + | 41.1650i | ||||||||||
109.20 | 2.07264 | + | 1.92462i | 0 | 0.591659 | + | 7.97809i | − | 19.8612i | 0 | 0.905321 | −14.1285 | + | 17.6744i | 0 | 38.2252 | − | 41.1650i | |||||||||
See all 24 embeddings |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
3.b | odd | 2 | 1 | inner |
8.b | even | 2 | 1 | inner |
24.h | odd | 2 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 216.4.d.d | ✓ | 24 |
3.b | odd | 2 | 1 | inner | 216.4.d.d | ✓ | 24 |
4.b | odd | 2 | 1 | 864.4.d.d | 24 | ||
8.b | even | 2 | 1 | inner | 216.4.d.d | ✓ | 24 |
8.d | odd | 2 | 1 | 864.4.d.d | 24 | ||
12.b | even | 2 | 1 | 864.4.d.d | 24 | ||
24.f | even | 2 | 1 | 864.4.d.d | 24 | ||
24.h | odd | 2 | 1 | inner | 216.4.d.d | ✓ | 24 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
216.4.d.d | ✓ | 24 | 1.a | even | 1 | 1 | trivial |
216.4.d.d | ✓ | 24 | 3.b | odd | 2 | 1 | inner |
216.4.d.d | ✓ | 24 | 8.b | even | 2 | 1 | inner |
216.4.d.d | ✓ | 24 | 24.h | odd | 2 | 1 | inner |
864.4.d.d | 24 | 4.b | odd | 2 | 1 | ||
864.4.d.d | 24 | 8.d | odd | 2 | 1 | ||
864.4.d.d | 24 | 12.b | even | 2 | 1 | ||
864.4.d.d | 24 | 24.f | even | 2 | 1 |
Hecke kernels
This newform subspace can be constructed as the kernel of the linear operator \( T_{5}^{12} + 900T_{5}^{10} + 284616T_{5}^{8} + 39207168T_{5}^{6} + 2361016896T_{5}^{4} + 61572485376T_{5}^{2} + 552678924800 \) acting on \(S_{4}^{\mathrm{new}}(216, [\chi])\).