Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [1400,2,Mod(657,1400)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(1400, base_ring=CyclotomicField(4))
chi = DirichletCharacter(H, H._module([0, 0, 1, 2]))
N = Newforms(chi, 2, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("1400.657");
S:= CuspForms(chi, 2);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 1400 = 2^{3} \cdot 5^{2} \cdot 7 \) |
Weight: | \( k \) | \(=\) | \( 2 \) |
Character orbit: | \([\chi]\) | \(=\) | 1400.x (of order \(4\), degree \(2\), 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: | \(11.1790562830\) |
Analytic rank: | \(0\) |
Dimension: | \(32\) |
Relative dimension: | \(16\) over \(\Q(i)\) |
Twist minimal: | yes |
Sato-Tate group: | $\mathrm{SU}(2)[C_{4}]$ |
$q$-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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
657.1 | 0 | −2.09284 | − | 2.09284i | 0 | 0 | 0 | 0.510946 | − | 2.59595i | 0 | 5.75996i | 0 | ||||||||||||||
657.2 | 0 | −2.09284 | − | 2.09284i | 0 | 0 | 0 | 2.59595 | − | 0.510946i | 0 | 5.75996i | 0 | ||||||||||||||
657.3 | 0 | −1.26512 | − | 1.26512i | 0 | 0 | 0 | −1.75168 | − | 1.98283i | 0 | 0.201074i | 0 | ||||||||||||||
657.4 | 0 | −1.26512 | − | 1.26512i | 0 | 0 | 0 | 1.98283 | + | 1.75168i | 0 | 0.201074i | 0 | ||||||||||||||
657.5 | 0 | −0.923076 | − | 0.923076i | 0 | 0 | 0 | −2.48246 | + | 0.915096i | 0 | − | 1.29586i | 0 | |||||||||||||
657.6 | 0 | −0.923076 | − | 0.923076i | 0 | 0 | 0 | −0.915096 | + | 2.48246i | 0 | − | 1.29586i | 0 | |||||||||||||
657.7 | 0 | −0.409160 | − | 0.409160i | 0 | 0 | 0 | 0.738062 | − | 2.54072i | 0 | − | 2.66518i | 0 | |||||||||||||
657.8 | 0 | −0.409160 | − | 0.409160i | 0 | 0 | 0 | 2.54072 | − | 0.738062i | 0 | − | 2.66518i | 0 | |||||||||||||
657.9 | 0 | 0.409160 | + | 0.409160i | 0 | 0 | 0 | −2.54072 | + | 0.738062i | 0 | − | 2.66518i | 0 | |||||||||||||
657.10 | 0 | 0.409160 | + | 0.409160i | 0 | 0 | 0 | −0.738062 | + | 2.54072i | 0 | − | 2.66518i | 0 | |||||||||||||
657.11 | 0 | 0.923076 | + | 0.923076i | 0 | 0 | 0 | 0.915096 | − | 2.48246i | 0 | − | 1.29586i | 0 | |||||||||||||
657.12 | 0 | 0.923076 | + | 0.923076i | 0 | 0 | 0 | 2.48246 | − | 0.915096i | 0 | − | 1.29586i | 0 | |||||||||||||
657.13 | 0 | 1.26512 | + | 1.26512i | 0 | 0 | 0 | −1.98283 | − | 1.75168i | 0 | 0.201074i | 0 | ||||||||||||||
657.14 | 0 | 1.26512 | + | 1.26512i | 0 | 0 | 0 | 1.75168 | + | 1.98283i | 0 | 0.201074i | 0 | ||||||||||||||
657.15 | 0 | 2.09284 | + | 2.09284i | 0 | 0 | 0 | −2.59595 | + | 0.510946i | 0 | 5.75996i | 0 | ||||||||||||||
657.16 | 0 | 2.09284 | + | 2.09284i | 0 | 0 | 0 | −0.510946 | + | 2.59595i | 0 | 5.75996i | 0 | ||||||||||||||
993.1 | 0 | −2.09284 | + | 2.09284i | 0 | 0 | 0 | 0.510946 | + | 2.59595i | 0 | − | 5.75996i | 0 | |||||||||||||
993.2 | 0 | −2.09284 | + | 2.09284i | 0 | 0 | 0 | 2.59595 | + | 0.510946i | 0 | − | 5.75996i | 0 | |||||||||||||
993.3 | 0 | −1.26512 | + | 1.26512i | 0 | 0 | 0 | −1.75168 | + | 1.98283i | 0 | − | 0.201074i | 0 | |||||||||||||
993.4 | 0 | −1.26512 | + | 1.26512i | 0 | 0 | 0 | 1.98283 | − | 1.75168i | 0 | − | 0.201074i | 0 | |||||||||||||
See all 32 embeddings |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
5.b | even | 2 | 1 | inner |
5.c | odd | 4 | 2 | inner |
7.b | odd | 2 | 1 | inner |
35.c | odd | 2 | 1 | inner |
35.f | even | 4 | 2 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 1400.2.x.c | ✓ | 32 |
5.b | even | 2 | 1 | inner | 1400.2.x.c | ✓ | 32 |
5.c | odd | 4 | 2 | inner | 1400.2.x.c | ✓ | 32 |
7.b | odd | 2 | 1 | inner | 1400.2.x.c | ✓ | 32 |
35.c | odd | 2 | 1 | inner | 1400.2.x.c | ✓ | 32 |
35.f | even | 4 | 2 | inner | 1400.2.x.c | ✓ | 32 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
1400.2.x.c | ✓ | 32 | 1.a | even | 1 | 1 | trivial |
1400.2.x.c | ✓ | 32 | 5.b | even | 2 | 1 | inner |
1400.2.x.c | ✓ | 32 | 5.c | odd | 4 | 2 | inner |
1400.2.x.c | ✓ | 32 | 7.b | odd | 2 | 1 | inner |
1400.2.x.c | ✓ | 32 | 35.c | odd | 2 | 1 | inner |
1400.2.x.c | ✓ | 32 | 35.f | even | 4 | 2 | inner |
Hecke kernels
This newform subspace can be constructed as the kernel of the linear operator \( T_{3}^{16} + 90T_{3}^{12} + 1049T_{3}^{8} + 2400T_{3}^{4} + 256 \) acting on \(S_{2}^{\mathrm{new}}(1400, [\chi])\).