Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [2448,2,Mod(2447,2448)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(2448, base_ring=CyclotomicField(2))
chi = DirichletCharacter(H, H._module([1, 0, 1, 1]))
N = Newforms(chi, 2, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("2448.2447");
S:= CuspForms(chi, 2);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 2448 = 2^{4} \cdot 3^{2} \cdot 17 \) |
Weight: | \( k \) | \(=\) | \( 2 \) |
Character orbit: | \([\chi]\) | \(=\) | 2448.o (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: | \(19.5473784148\) |
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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
2447.1 | 0 | 0 | 0 | −3.75696 | 0 | −3.40219 | 0 | 0 | 0 | ||||||||||||||||||
2447.2 | 0 | 0 | 0 | −3.75696 | 0 | 3.40219 | 0 | 0 | 0 | ||||||||||||||||||
2447.3 | 0 | 0 | 0 | −3.75696 | 0 | 3.40219 | 0 | 0 | 0 | ||||||||||||||||||
2447.4 | 0 | 0 | 0 | −3.75696 | 0 | −3.40219 | 0 | 0 | 0 | ||||||||||||||||||
2447.5 | 0 | 0 | 0 | −1.52982 | 0 | −3.07186 | 0 | 0 | 0 | ||||||||||||||||||
2447.6 | 0 | 0 | 0 | −1.52982 | 0 | 3.07186 | 0 | 0 | 0 | ||||||||||||||||||
2447.7 | 0 | 0 | 0 | −1.52982 | 0 | 3.07186 | 0 | 0 | 0 | ||||||||||||||||||
2447.8 | 0 | 0 | 0 | −1.52982 | 0 | −3.07186 | 0 | 0 | 0 | ||||||||||||||||||
2447.9 | 0 | 0 | 0 | −0.738173 | 0 | −0.994380 | 0 | 0 | 0 | ||||||||||||||||||
2447.10 | 0 | 0 | 0 | −0.738173 | 0 | 0.994380 | 0 | 0 | 0 | ||||||||||||||||||
2447.11 | 0 | 0 | 0 | −0.738173 | 0 | 0.994380 | 0 | 0 | 0 | ||||||||||||||||||
2447.12 | 0 | 0 | 0 | −0.738173 | 0 | −0.994380 | 0 | 0 | 0 | ||||||||||||||||||
2447.13 | 0 | 0 | 0 | 0.738173 | 0 | 0.994380 | 0 | 0 | 0 | ||||||||||||||||||
2447.14 | 0 | 0 | 0 | 0.738173 | 0 | −0.994380 | 0 | 0 | 0 | ||||||||||||||||||
2447.15 | 0 | 0 | 0 | 0.738173 | 0 | −0.994380 | 0 | 0 | 0 | ||||||||||||||||||
2447.16 | 0 | 0 | 0 | 0.738173 | 0 | 0.994380 | 0 | 0 | 0 | ||||||||||||||||||
2447.17 | 0 | 0 | 0 | 1.52982 | 0 | 3.07186 | 0 | 0 | 0 | ||||||||||||||||||
2447.18 | 0 | 0 | 0 | 1.52982 | 0 | −3.07186 | 0 | 0 | 0 | ||||||||||||||||||
2447.19 | 0 | 0 | 0 | 1.52982 | 0 | −3.07186 | 0 | 0 | 0 | ||||||||||||||||||
2447.20 | 0 | 0 | 0 | 1.52982 | 0 | 3.07186 | 0 | 0 | 0 | ||||||||||||||||||
See all 24 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 |
17.b | even | 2 | 1 | inner |
51.c | odd | 2 | 1 | inner |
68.d | odd | 2 | 1 | inner |
204.h | even | 2 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 2448.2.o.d | ✓ | 24 |
3.b | odd | 2 | 1 | inner | 2448.2.o.d | ✓ | 24 |
4.b | odd | 2 | 1 | inner | 2448.2.o.d | ✓ | 24 |
12.b | even | 2 | 1 | inner | 2448.2.o.d | ✓ | 24 |
17.b | even | 2 | 1 | inner | 2448.2.o.d | ✓ | 24 |
51.c | odd | 2 | 1 | inner | 2448.2.o.d | ✓ | 24 |
68.d | odd | 2 | 1 | inner | 2448.2.o.d | ✓ | 24 |
204.h | even | 2 | 1 | inner | 2448.2.o.d | ✓ | 24 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
2448.2.o.d | ✓ | 24 | 1.a | even | 1 | 1 | trivial |
2448.2.o.d | ✓ | 24 | 3.b | odd | 2 | 1 | inner |
2448.2.o.d | ✓ | 24 | 4.b | odd | 2 | 1 | inner |
2448.2.o.d | ✓ | 24 | 12.b | even | 2 | 1 | inner |
2448.2.o.d | ✓ | 24 | 17.b | even | 2 | 1 | inner |
2448.2.o.d | ✓ | 24 | 51.c | odd | 2 | 1 | inner |
2448.2.o.d | ✓ | 24 | 68.d | odd | 2 | 1 | inner |
2448.2.o.d | ✓ | 24 | 204.h | even | 2 | 1 | inner |
Hecke kernels
This newform subspace can be constructed as the kernel of the linear operator \( T_{5}^{6} - 17T_{5}^{4} + 42T_{5}^{2} - 18 \) acting on \(S_{2}^{\mathrm{new}}(2448, [\chi])\).