Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [48,26,Mod(47,48)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(48, base_ring=CyclotomicField(2))
chi = DirichletCharacter(H, H._module([1, 0, 1]))
N = Newforms(chi, 26, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("48.47");
S:= CuspForms(chi, 26);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 48 = 2^{4} \cdot 3 \) |
Weight: | \( k \) | \(=\) | \( 26 \) |
Character orbit: | \([\chi]\) | \(=\) | 48.c (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: | \(190.078454377\) |
Analytic rank: | \(0\) |
Dimension: | \(32\) |
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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
47.1 | 0 | −920353. | − | 15454.6i | 0 | − | 3.79737e8i | 0 | 1.78094e10i | 0 | 8.46811e11 | + | 2.84475e10i | 0 | |||||||||||||
47.2 | 0 | −920353. | + | 15454.6i | 0 | 3.79737e8i | 0 | − | 1.78094e10i | 0 | 8.46811e11 | − | 2.84475e10i | 0 | |||||||||||||
47.3 | 0 | −874132. | − | 288412.i | 0 | 9.52315e8i | 0 | 6.80483e10i | 0 | 6.80925e11 | + | 5.04221e11i | 0 | ||||||||||||||
47.4 | 0 | −874132. | + | 288412.i | 0 | − | 9.52315e8i | 0 | − | 6.80483e10i | 0 | 6.80925e11 | − | 5.04221e11i | 0 | ||||||||||||
47.5 | 0 | −810717. | − | 435921.i | 0 | − | 8.90954e8i | 0 | − | 8.67077e9i | 0 | 4.67235e11 | + | 7.06817e11i | 0 | ||||||||||||
47.6 | 0 | −810717. | + | 435921.i | 0 | 8.90954e8i | 0 | 8.67077e9i | 0 | 4.67235e11 | − | 7.06817e11i | 0 | ||||||||||||||
47.7 | 0 | −750929. | − | 532347.i | 0 | 1.02779e7i | 0 | − | 1.06568e10i | 0 | 2.80501e11 | + | 7.99511e11i | 0 | |||||||||||||
47.8 | 0 | −750929. | + | 532347.i | 0 | − | 1.02779e7i | 0 | 1.06568e10i | 0 | 2.80501e11 | − | 7.99511e11i | 0 | |||||||||||||
47.9 | 0 | −716146. | − | 578293.i | 0 | − | 2.45023e8i | 0 | 4.55185e10i | 0 | 1.78442e11 | + | 8.28285e11i | 0 | |||||||||||||
47.10 | 0 | −716146. | + | 578293.i | 0 | 2.45023e8i | 0 | − | 4.55185e10i | 0 | 1.78442e11 | − | 8.28285e11i | 0 | |||||||||||||
47.11 | 0 | −686084. | − | 613659.i | 0 | 5.43780e8i | 0 | − | 5.85379e10i | 0 | 9.41337e10 | + | 8.42043e11i | 0 | |||||||||||||
47.12 | 0 | −686084. | + | 613659.i | 0 | − | 5.43780e8i | 0 | 5.85379e10i | 0 | 9.41337e10 | − | 8.42043e11i | 0 | |||||||||||||
47.13 | 0 | −231231. | − | 890966.i | 0 | − | 3.41554e8i | 0 | 1.60809e10i | 0 | −7.40353e11 | + | 4.12038e11i | 0 | |||||||||||||
47.14 | 0 | −231231. | + | 890966.i | 0 | 3.41554e8i | 0 | − | 1.60809e10i | 0 | −7.40353e11 | − | 4.12038e11i | 0 | |||||||||||||
47.15 | 0 | −70862.5 | − | 917751.i | 0 | 9.79693e8i | 0 | 2.11593e10i | 0 | −8.37246e11 | + | 1.30068e11i | 0 | ||||||||||||||
47.16 | 0 | −70862.5 | + | 917751.i | 0 | − | 9.79693e8i | 0 | − | 2.11593e10i | 0 | −8.37246e11 | − | 1.30068e11i | 0 | ||||||||||||
47.17 | 0 | 70862.5 | − | 917751.i | 0 | − | 9.79693e8i | 0 | 2.11593e10i | 0 | −8.37246e11 | − | 1.30068e11i | 0 | |||||||||||||
47.18 | 0 | 70862.5 | + | 917751.i | 0 | 9.79693e8i | 0 | − | 2.11593e10i | 0 | −8.37246e11 | + | 1.30068e11i | 0 | |||||||||||||
47.19 | 0 | 231231. | − | 890966.i | 0 | 3.41554e8i | 0 | 1.60809e10i | 0 | −7.40353e11 | − | 4.12038e11i | 0 | ||||||||||||||
47.20 | 0 | 231231. | + | 890966.i | 0 | − | 3.41554e8i | 0 | − | 1.60809e10i | 0 | −7.40353e11 | + | 4.12038e11i | 0 | ||||||||||||
See all 32 embeddings |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
3.b | odd | 2 | 1 | inner |
4.b | odd | 2 | 1 | inner |
12.b | even | 2 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 48.26.c.c | ✓ | 32 |
3.b | odd | 2 | 1 | inner | 48.26.c.c | ✓ | 32 |
4.b | odd | 2 | 1 | inner | 48.26.c.c | ✓ | 32 |
12.b | even | 2 | 1 | inner | 48.26.c.c | ✓ | 32 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
48.26.c.c | ✓ | 32 | 1.a | even | 1 | 1 | trivial |
48.26.c.c | ✓ | 32 | 3.b | odd | 2 | 1 | inner |
48.26.c.c | ✓ | 32 | 4.b | odd | 2 | 1 | inner |
48.26.c.c | ✓ | 32 | 12.b | even | 2 | 1 | inner |
Hecke kernels
This newform subspace can be constructed as the kernel of the linear operator \( T_{5}^{16} + \cdots + 21\!\cdots\!00 \) acting on \(S_{26}^{\mathrm{new}}(48, [\chi])\).