Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [108,4,Mod(13,108)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(108, base_ring=CyclotomicField(18))
chi = DirichletCharacter(H, H._module([0, 8]))
N = Newforms(chi, 4, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("108.13");
S:= CuspForms(chi, 4);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 108 = 2^{2} \cdot 3^{3} \) |
Weight: | \( k \) | \(=\) | \( 4 \) |
Character orbit: | \([\chi]\) | \(=\) | 108.i (of order \(9\), degree \(6\), 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: | \(6.37220628062\) |
Analytic rank: | \(0\) |
Dimension: | \(54\) |
Relative dimension: | \(9\) over \(\Q(\zeta_{9})\) |
Twist minimal: | yes |
Sato-Tate group: | $\mathrm{SU}(2)[C_{9}]$ |
$q$-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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
13.1 | 0 | −4.52704 | + | 2.55067i | 0 | −1.73722 | − | 1.45770i | 0 | −5.32680 | − | 1.93880i | 0 | 13.9881 | − | 23.0940i | 0 | ||||||||||
13.2 | 0 | −4.40571 | − | 2.75494i | 0 | 8.18465 | + | 6.86774i | 0 | −24.4722 | − | 8.90714i | 0 | 11.8206 | + | 24.2749i | 0 | ||||||||||
13.3 | 0 | −4.40211 | − | 2.76069i | 0 | −14.9393 | − | 12.5356i | 0 | 23.5233 | + | 8.56177i | 0 | 11.7572 | + | 24.3057i | 0 | ||||||||||
13.4 | 0 | −0.716497 | − | 5.14652i | 0 | 7.52940 | + | 6.31792i | 0 | 24.9076 | + | 9.06562i | 0 | −25.9733 | + | 7.37493i | 0 | ||||||||||
13.5 | 0 | −0.173032 | + | 5.19327i | 0 | 6.54095 | + | 5.48851i | 0 | 11.9650 | + | 4.35489i | 0 | −26.9401 | − | 1.79720i | 0 | ||||||||||
13.6 | 0 | 2.34095 | − | 4.63896i | 0 | −5.19451 | − | 4.35871i | 0 | −17.8009 | − | 6.47901i | 0 | −16.0399 | − | 21.7191i | 0 | ||||||||||
13.7 | 0 | 2.66172 | + | 4.46265i | 0 | −12.8040 | − | 10.7439i | 0 | −20.8033 | − | 7.57178i | 0 | −12.8305 | + | 23.7566i | 0 | ||||||||||
13.8 | 0 | 5.14478 | + | 0.728858i | 0 | −5.18194 | − | 4.34817i | 0 | 16.8240 | + | 6.12342i | 0 | 25.9375 | + | 7.49962i | 0 | ||||||||||
13.9 | 0 | 5.19029 | − | 0.246754i | 0 | 15.7004 | + | 13.1742i | 0 | −8.81657 | − | 3.20897i | 0 | 26.8782 | − | 2.56145i | 0 | ||||||||||
25.1 | 0 | −4.52704 | − | 2.55067i | 0 | −1.73722 | + | 1.45770i | 0 | −5.32680 | + | 1.93880i | 0 | 13.9881 | + | 23.0940i | 0 | ||||||||||
25.2 | 0 | −4.40571 | + | 2.75494i | 0 | 8.18465 | − | 6.86774i | 0 | −24.4722 | + | 8.90714i | 0 | 11.8206 | − | 24.2749i | 0 | ||||||||||
25.3 | 0 | −4.40211 | + | 2.76069i | 0 | −14.9393 | + | 12.5356i | 0 | 23.5233 | − | 8.56177i | 0 | 11.7572 | − | 24.3057i | 0 | ||||||||||
25.4 | 0 | −0.716497 | + | 5.14652i | 0 | 7.52940 | − | 6.31792i | 0 | 24.9076 | − | 9.06562i | 0 | −25.9733 | − | 7.37493i | 0 | ||||||||||
25.5 | 0 | −0.173032 | − | 5.19327i | 0 | 6.54095 | − | 5.48851i | 0 | 11.9650 | − | 4.35489i | 0 | −26.9401 | + | 1.79720i | 0 | ||||||||||
25.6 | 0 | 2.34095 | + | 4.63896i | 0 | −5.19451 | + | 4.35871i | 0 | −17.8009 | + | 6.47901i | 0 | −16.0399 | + | 21.7191i | 0 | ||||||||||
25.7 | 0 | 2.66172 | − | 4.46265i | 0 | −12.8040 | + | 10.7439i | 0 | −20.8033 | + | 7.57178i | 0 | −12.8305 | − | 23.7566i | 0 | ||||||||||
25.8 | 0 | 5.14478 | − | 0.728858i | 0 | −5.18194 | + | 4.34817i | 0 | 16.8240 | − | 6.12342i | 0 | 25.9375 | − | 7.49962i | 0 | ||||||||||
25.9 | 0 | 5.19029 | + | 0.246754i | 0 | 15.7004 | − | 13.1742i | 0 | −8.81657 | + | 3.20897i | 0 | 26.8782 | + | 2.56145i | 0 | ||||||||||
49.1 | 0 | −5.16735 | + | 0.546343i | 0 | 5.21695 | − | 1.89881i | 0 | 1.58868 | + | 9.00985i | 0 | 26.4030 | − | 5.64629i | 0 | ||||||||||
49.2 | 0 | −4.14053 | + | 3.13943i | 0 | −4.27250 | + | 1.55506i | 0 | −4.69568 | − | 26.6305i | 0 | 7.28791 | − | 25.9978i | 0 | ||||||||||
See all 54 embeddings |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
27.e | even | 9 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 108.4.i.a | ✓ | 54 |
3.b | odd | 2 | 1 | 324.4.i.a | 54 | ||
27.e | even | 9 | 1 | inner | 108.4.i.a | ✓ | 54 |
27.f | odd | 18 | 1 | 324.4.i.a | 54 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
108.4.i.a | ✓ | 54 | 1.a | even | 1 | 1 | trivial |
108.4.i.a | ✓ | 54 | 27.e | even | 9 | 1 | inner |
324.4.i.a | 54 | 3.b | odd | 2 | 1 | ||
324.4.i.a | 54 | 27.f | odd | 18 | 1 |
Hecke kernels
This newform subspace is the entire newspace \(S_{4}^{\mathrm{new}}(108, [\chi])\).