Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [1872,4,Mod(1871,1872)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(1872, base_ring=CyclotomicField(2))
chi = DirichletCharacter(H, H._module([1, 0, 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("1872.1871");
S:= CuspForms(chi, 4);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 1872 = 2^{4} \cdot 3^{2} \cdot 13 \) |
Weight: | \( k \) | \(=\) | \( 4 \) |
Character orbit: | \([\chi]\) | \(=\) | 1872.n (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: | \(110.451575531\) |
Analytic rank: | \(0\) |
Dimension: | \(56\) |
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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1871.1 | 0 | 0 | 0 | −21.7144 | 0 | 14.3806 | 0 | 0 | 0 | ||||||||||||||||||
1871.2 | 0 | 0 | 0 | −21.7144 | 0 | −14.3806 | 0 | 0 | 0 | ||||||||||||||||||
1871.3 | 0 | 0 | 0 | −21.7144 | 0 | −14.3806 | 0 | 0 | 0 | ||||||||||||||||||
1871.4 | 0 | 0 | 0 | −21.7144 | 0 | 14.3806 | 0 | 0 | 0 | ||||||||||||||||||
1871.5 | 0 | 0 | 0 | −16.7041 | 0 | 5.99827 | 0 | 0 | 0 | ||||||||||||||||||
1871.6 | 0 | 0 | 0 | −16.7041 | 0 | −5.99827 | 0 | 0 | 0 | ||||||||||||||||||
1871.7 | 0 | 0 | 0 | −16.7041 | 0 | −5.99827 | 0 | 0 | 0 | ||||||||||||||||||
1871.8 | 0 | 0 | 0 | −16.7041 | 0 | 5.99827 | 0 | 0 | 0 | ||||||||||||||||||
1871.9 | 0 | 0 | 0 | −11.7883 | 0 | 24.3049 | 0 | 0 | 0 | ||||||||||||||||||
1871.10 | 0 | 0 | 0 | −11.7883 | 0 | −24.3049 | 0 | 0 | 0 | ||||||||||||||||||
1871.11 | 0 | 0 | 0 | −11.7883 | 0 | −24.3049 | 0 | 0 | 0 | ||||||||||||||||||
1871.12 | 0 | 0 | 0 | −11.7883 | 0 | 24.3049 | 0 | 0 | 0 | ||||||||||||||||||
1871.13 | 0 | 0 | 0 | −9.29743 | 0 | 28.6741 | 0 | 0 | 0 | ||||||||||||||||||
1871.14 | 0 | 0 | 0 | −9.29743 | 0 | −28.6741 | 0 | 0 | 0 | ||||||||||||||||||
1871.15 | 0 | 0 | 0 | −9.29743 | 0 | −28.6741 | 0 | 0 | 0 | ||||||||||||||||||
1871.16 | 0 | 0 | 0 | −9.29743 | 0 | 28.6741 | 0 | 0 | 0 | ||||||||||||||||||
1871.17 | 0 | 0 | 0 | −7.25620 | 0 | 11.0448 | 0 | 0 | 0 | ||||||||||||||||||
1871.18 | 0 | 0 | 0 | −7.25620 | 0 | −11.0448 | 0 | 0 | 0 | ||||||||||||||||||
1871.19 | 0 | 0 | 0 | −7.25620 | 0 | −11.0448 | 0 | 0 | 0 | ||||||||||||||||||
1871.20 | 0 | 0 | 0 | −7.25620 | 0 | 11.0448 | 0 | 0 | 0 | ||||||||||||||||||
See all 56 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 |
13.b | even | 2 | 1 | inner |
39.d | odd | 2 | 1 | inner |
52.b | odd | 2 | 1 | inner |
156.h | even | 2 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 1872.4.n.e | ✓ | 56 |
3.b | odd | 2 | 1 | inner | 1872.4.n.e | ✓ | 56 |
4.b | odd | 2 | 1 | inner | 1872.4.n.e | ✓ | 56 |
12.b | even | 2 | 1 | inner | 1872.4.n.e | ✓ | 56 |
13.b | even | 2 | 1 | inner | 1872.4.n.e | ✓ | 56 |
39.d | odd | 2 | 1 | inner | 1872.4.n.e | ✓ | 56 |
52.b | odd | 2 | 1 | inner | 1872.4.n.e | ✓ | 56 |
156.h | even | 2 | 1 | inner | 1872.4.n.e | ✓ | 56 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
1872.4.n.e | ✓ | 56 | 1.a | even | 1 | 1 | trivial |
1872.4.n.e | ✓ | 56 | 3.b | odd | 2 | 1 | inner |
1872.4.n.e | ✓ | 56 | 4.b | odd | 2 | 1 | inner |
1872.4.n.e | ✓ | 56 | 12.b | even | 2 | 1 | inner |
1872.4.n.e | ✓ | 56 | 13.b | even | 2 | 1 | inner |
1872.4.n.e | ✓ | 56 | 39.d | odd | 2 | 1 | inner |
1872.4.n.e | ✓ | 56 | 52.b | odd | 2 | 1 | inner |
1872.4.n.e | ✓ | 56 | 156.h | even | 2 | 1 | inner |
Hecke kernels
This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{4}^{\mathrm{new}}(1872, [\chi])\):
\( T_{5}^{14} - 1098 T_{5}^{12} + 436728 T_{5}^{10} - 81647280 T_{5}^{8} + 7881188688 T_{5}^{6} + \cdots - 100095176245248 \) |
\( T_{7}^{14} - 2500 T_{7}^{12} + 2417688 T_{7}^{10} - 1150071744 T_{7}^{8} + 284874278544 T_{7}^{6} + \cdots - 42\!\cdots\!92 \) |