Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [1980,2,Mod(1871,1980)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(1980, base_ring=CyclotomicField(2))
chi = DirichletCharacter(H, H._module([1, 1, 0, 0]))
N = Newforms(chi, 2, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("1980.1871");
S:= CuspForms(chi, 2);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 1980 = 2^{2} \cdot 3^{2} \cdot 5 \cdot 11 \) |
Weight: | \( k \) | \(=\) | \( 2 \) |
Character orbit: | \([\chi]\) | \(=\) | 1980.f (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: | \(15.8103796002\) |
Analytic rank: | \(0\) |
Dimension: | \(40\) |
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 | −1.39225 | − | 0.248254i | 0 | 1.87674 | + | 0.691264i | 1.00000i | 0 | − | 4.16820i | −2.44129 | − | 1.42832i | 0 | 0.248254 | − | 1.39225i | |||||||||
1871.2 | −1.39225 | + | 0.248254i | 0 | 1.87674 | − | 0.691264i | − | 1.00000i | 0 | 4.16820i | −2.44129 | + | 1.42832i | 0 | 0.248254 | + | 1.39225i | |||||||||
1871.3 | −1.37691 | − | 0.322654i | 0 | 1.79179 | + | 0.888535i | − | 1.00000i | 0 | − | 0.0719637i | −2.18045 | − | 1.80157i | 0 | −0.322654 | + | 1.37691i | ||||||||
1871.4 | −1.37691 | + | 0.322654i | 0 | 1.79179 | − | 0.888535i | 1.00000i | 0 | 0.0719637i | −2.18045 | + | 1.80157i | 0 | −0.322654 | − | 1.37691i | ||||||||||
1871.5 | −1.31419 | − | 0.522409i | 0 | 1.45418 | + | 1.37309i | − | 1.00000i | 0 | 1.98169i | −1.19375 | − | 2.56417i | 0 | −0.522409 | + | 1.31419i | |||||||||
1871.6 | −1.31419 | + | 0.522409i | 0 | 1.45418 | − | 1.37309i | 1.00000i | 0 | − | 1.98169i | −1.19375 | + | 2.56417i | 0 | −0.522409 | − | 1.31419i | |||||||||
1871.7 | −1.09271 | − | 0.897769i | 0 | 0.388021 | + | 1.96200i | 1.00000i | 0 | 0.112424i | 1.33743 | − | 2.49224i | 0 | 0.897769 | − | 1.09271i | ||||||||||
1871.8 | −1.09271 | + | 0.897769i | 0 | 0.388021 | − | 1.96200i | − | 1.00000i | 0 | − | 0.112424i | 1.33743 | + | 2.49224i | 0 | 0.897769 | + | 1.09271i | ||||||||
1871.9 | −1.03817 | − | 0.960312i | 0 | 0.155600 | + | 1.99394i | − | 1.00000i | 0 | − | 4.36619i | 1.75326 | − | 2.21947i | 0 | −0.960312 | + | 1.03817i | ||||||||
1871.10 | −1.03817 | + | 0.960312i | 0 | 0.155600 | − | 1.99394i | 1.00000i | 0 | 4.36619i | 1.75326 | + | 2.21947i | 0 | −0.960312 | − | 1.03817i | ||||||||||
1871.11 | −1.02572 | − | 0.973596i | 0 | 0.104222 | + | 1.99728i | 1.00000i | 0 | 1.00680i | 1.83764 | − | 2.15013i | 0 | 0.973596 | − | 1.02572i | ||||||||||
1871.12 | −1.02572 | + | 0.973596i | 0 | 0.104222 | − | 1.99728i | − | 1.00000i | 0 | − | 1.00680i | 1.83764 | + | 2.15013i | 0 | 0.973596 | + | 1.02572i | ||||||||
1871.13 | −0.497594 | − | 1.32378i | 0 | −1.50480 | + | 1.31741i | − | 1.00000i | 0 | − | 2.37531i | 2.49275 | + | 1.33649i | 0 | −1.32378 | + | 0.497594i | ||||||||
1871.14 | −0.497594 | + | 1.32378i | 0 | −1.50480 | − | 1.31741i | 1.00000i | 0 | 2.37531i | 2.49275 | − | 1.33649i | 0 | −1.32378 | − | 0.497594i | ||||||||||
1871.15 | −0.459058 | − | 1.33763i | 0 | −1.57853 | + | 1.22810i | − | 1.00000i | 0 | 3.16400i | 2.36739 | + | 1.54773i | 0 | −1.33763 | + | 0.459058i | |||||||||
1871.16 | −0.459058 | + | 1.33763i | 0 | −1.57853 | − | 1.22810i | 1.00000i | 0 | − | 3.16400i | 2.36739 | − | 1.54773i | 0 | −1.33763 | − | 0.459058i | |||||||||
1871.17 | −0.302390 | − | 1.38151i | 0 | −1.81712 | + | 0.835506i | 1.00000i | 0 | 3.30694i | 1.70374 | + | 2.25772i | 0 | 1.38151 | − | 0.302390i | ||||||||||
1871.18 | −0.302390 | + | 1.38151i | 0 | −1.81712 | − | 0.835506i | − | 1.00000i | 0 | − | 3.30694i | 1.70374 | − | 2.25772i | 0 | 1.38151 | + | 0.302390i | ||||||||
1871.19 | −0.199078 | − | 1.40013i | 0 | −1.92074 | + | 0.557472i | 1.00000i | 0 | − | 0.448695i | 1.16291 | + | 2.57830i | 0 | 1.40013 | − | 0.199078i | |||||||||
1871.20 | −0.199078 | + | 1.40013i | 0 | −1.92074 | − | 0.557472i | − | 1.00000i | 0 | 0.448695i | 1.16291 | − | 2.57830i | 0 | 1.40013 | + | 0.199078i | |||||||||
See all 40 embeddings |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
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 | 1980.2.f.b | yes | 40 |
3.b | odd | 2 | 1 | 1980.2.f.a | ✓ | 40 | |
4.b | odd | 2 | 1 | 1980.2.f.a | ✓ | 40 | |
12.b | even | 2 | 1 | inner | 1980.2.f.b | yes | 40 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
1980.2.f.a | ✓ | 40 | 3.b | odd | 2 | 1 | |
1980.2.f.a | ✓ | 40 | 4.b | odd | 2 | 1 | |
1980.2.f.b | yes | 40 | 1.a | even | 1 | 1 | trivial |
1980.2.f.b | yes | 40 | 12.b | even | 2 | 1 | inner |