Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [280,2,Mod(139,280)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(280, base_ring=CyclotomicField(2))
chi = DirichletCharacter(H, H._module([1, 1, 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("280.139");
S:= CuspForms(chi, 2);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 280 = 2^{3} \cdot 5 \cdot 7 \) |
Weight: | \( k \) | \(=\) | \( 2 \) |
Character orbit: | \([\chi]\) | \(=\) | 280.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: | \(2.23581125660\) |
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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
139.1 | −1.27891 | − | 0.603655i | −1.64952 | 1.27120 | + | 1.54404i | −1.78913 | − | 1.34127i | 2.10957 | + | 0.995738i | −0.157160 | + | 2.64108i | −0.693682 | − | 2.74204i | −0.279099 | 1.47847 | + | 2.79538i | ||||
139.2 | −1.27891 | − | 0.603655i | 1.64952 | 1.27120 | + | 1.54404i | 1.78913 | + | 1.34127i | −2.10957 | − | 0.995738i | −0.157160 | − | 2.64108i | −0.693682 | − | 2.74204i | −0.279099 | −1.47847 | − | 2.79538i | ||||
139.3 | −1.27891 | + | 0.603655i | −1.64952 | 1.27120 | − | 1.54404i | −1.78913 | + | 1.34127i | 2.10957 | − | 0.995738i | −0.157160 | − | 2.64108i | −0.693682 | + | 2.74204i | −0.279099 | 1.47847 | − | 2.79538i | ||||
139.4 | −1.27891 | + | 0.603655i | 1.64952 | 1.27120 | − | 1.54404i | 1.78913 | − | 1.34127i | −2.10957 | + | 0.995738i | −0.157160 | + | 2.64108i | −0.693682 | + | 2.74204i | −0.279099 | −1.47847 | + | 2.79538i | ||||
139.5 | −1.20452 | − | 0.741038i | −2.57969 | 0.901725 | + | 1.78519i | −0.460102 | + | 2.18822i | 3.10728 | + | 1.91165i | 2.31487 | − | 1.28116i | 0.236748 | − | 2.81850i | 3.65479 | 2.17576 | − | 2.29480i | ||||
139.6 | −1.20452 | − | 0.741038i | 2.57969 | 0.901725 | + | 1.78519i | 0.460102 | − | 2.18822i | −3.10728 | − | 1.91165i | 2.31487 | + | 1.28116i | 0.236748 | − | 2.81850i | 3.65479 | −2.17576 | + | 2.29480i | ||||
139.7 | −1.20452 | + | 0.741038i | −2.57969 | 0.901725 | − | 1.78519i | −0.460102 | − | 2.18822i | 3.10728 | − | 1.91165i | 2.31487 | + | 1.28116i | 0.236748 | + | 2.81850i | 3.65479 | 2.17576 | + | 2.29480i | ||||
139.8 | −1.20452 | + | 0.741038i | 2.57969 | 0.901725 | − | 1.78519i | 0.460102 | + | 2.18822i | −3.10728 | + | 1.91165i | 2.31487 | − | 1.28116i | 0.236748 | + | 2.81850i | 3.65479 | −2.17576 | − | 2.29480i | ||||
139.9 | −0.918230 | − | 1.07557i | −1.19038 | −0.313707 | + | 1.97524i | 2.22369 | − | 0.234978i | 1.09304 | + | 1.28034i | −2.11797 | + | 1.58562i | 2.41257 | − | 1.47631i | −1.58299 | −2.29459 | − | 2.17597i | ||||
139.10 | −0.918230 | − | 1.07557i | 1.19038 | −0.313707 | + | 1.97524i | −2.22369 | + | 0.234978i | −1.09304 | − | 1.28034i | −2.11797 | − | 1.58562i | 2.41257 | − | 1.47631i | −1.58299 | 2.29459 | + | 2.17597i | ||||
139.11 | −0.918230 | + | 1.07557i | −1.19038 | −0.313707 | − | 1.97524i | 2.22369 | + | 0.234978i | 1.09304 | − | 1.28034i | −2.11797 | − | 1.58562i | 2.41257 | + | 1.47631i | −1.58299 | −2.29459 | + | 2.17597i | ||||
139.12 | −0.918230 | + | 1.07557i | 1.19038 | −0.313707 | − | 1.97524i | −2.22369 | − | 0.234978i | −1.09304 | + | 1.28034i | −2.11797 | + | 1.58562i | 2.41257 | + | 1.47631i | −1.58299 | 2.29459 | − | 2.17597i | ||||
139.13 | −0.510308 | − | 1.31893i | −0.857983 | −1.47917 | + | 1.34612i | 1.33029 | − | 1.79731i | 0.437835 | + | 1.13162i | 2.41097 | − | 1.08959i | 2.53028 | + | 1.26399i | −2.26387 | −3.04939 | − | 0.837376i | ||||
139.14 | −0.510308 | − | 1.31893i | 0.857983 | −1.47917 | + | 1.34612i | −1.33029 | + | 1.79731i | −0.437835 | − | 1.13162i | 2.41097 | + | 1.08959i | 2.53028 | + | 1.26399i | −2.26387 | 3.04939 | + | 0.837376i | ||||
139.15 | −0.510308 | + | 1.31893i | −0.857983 | −1.47917 | − | 1.34612i | 1.33029 | + | 1.79731i | 0.437835 | − | 1.13162i | 2.41097 | + | 1.08959i | 2.53028 | − | 1.26399i | −2.26387 | −3.04939 | + | 0.837376i | ||||
139.16 | −0.510308 | + | 1.31893i | 0.857983 | −1.47917 | − | 1.34612i | −1.33029 | − | 1.79731i | −0.437835 | + | 1.13162i | 2.41097 | − | 1.08959i | 2.53028 | − | 1.26399i | −2.26387 | 3.04939 | − | 0.837376i | ||||
139.17 | −0.244900 | − | 1.39285i | −2.91053 | −1.88005 | + | 0.682218i | −1.83654 | − | 1.27559i | 0.712789 | + | 4.05392i | −1.52252 | − | 2.16378i | 1.41065 | + | 2.45154i | 5.47117 | −1.32694 | + | 2.87041i | ||||
139.18 | −0.244900 | − | 1.39285i | 2.91053 | −1.88005 | + | 0.682218i | 1.83654 | + | 1.27559i | −0.712789 | − | 4.05392i | −1.52252 | + | 2.16378i | 1.41065 | + | 2.45154i | 5.47117 | 1.32694 | − | 2.87041i | ||||
139.19 | −0.244900 | + | 1.39285i | −2.91053 | −1.88005 | − | 0.682218i | −1.83654 | + | 1.27559i | 0.712789 | − | 4.05392i | −1.52252 | + | 2.16378i | 1.41065 | − | 2.45154i | 5.47117 | −1.32694 | − | 2.87041i | ||||
139.20 | −0.244900 | + | 1.39285i | 2.91053 | −1.88005 | − | 0.682218i | 1.83654 | − | 1.27559i | −0.712789 | + | 4.05392i | −1.52252 | − | 2.16378i | 1.41065 | − | 2.45154i | 5.47117 | 1.32694 | + | 2.87041i | ||||
See all 40 embeddings |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
5.b | even | 2 | 1 | inner |
7.b | odd | 2 | 1 | inner |
8.d | odd | 2 | 1 | inner |
35.c | odd | 2 | 1 | inner |
40.e | odd | 2 | 1 | inner |
56.e | even | 2 | 1 | inner |
280.n | even | 2 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 280.2.n.b | ✓ | 40 |
4.b | odd | 2 | 1 | 1120.2.n.b | 40 | ||
5.b | even | 2 | 1 | inner | 280.2.n.b | ✓ | 40 |
7.b | odd | 2 | 1 | inner | 280.2.n.b | ✓ | 40 |
8.b | even | 2 | 1 | 1120.2.n.b | 40 | ||
8.d | odd | 2 | 1 | inner | 280.2.n.b | ✓ | 40 |
20.d | odd | 2 | 1 | 1120.2.n.b | 40 | ||
28.d | even | 2 | 1 | 1120.2.n.b | 40 | ||
35.c | odd | 2 | 1 | inner | 280.2.n.b | ✓ | 40 |
40.e | odd | 2 | 1 | inner | 280.2.n.b | ✓ | 40 |
40.f | even | 2 | 1 | 1120.2.n.b | 40 | ||
56.e | even | 2 | 1 | inner | 280.2.n.b | ✓ | 40 |
56.h | odd | 2 | 1 | 1120.2.n.b | 40 | ||
140.c | even | 2 | 1 | 1120.2.n.b | 40 | ||
280.c | odd | 2 | 1 | 1120.2.n.b | 40 | ||
280.n | even | 2 | 1 | inner | 280.2.n.b | ✓ | 40 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
280.2.n.b | ✓ | 40 | 1.a | even | 1 | 1 | trivial |
280.2.n.b | ✓ | 40 | 5.b | even | 2 | 1 | inner |
280.2.n.b | ✓ | 40 | 7.b | odd | 2 | 1 | inner |
280.2.n.b | ✓ | 40 | 8.d | odd | 2 | 1 | inner |
280.2.n.b | ✓ | 40 | 35.c | odd | 2 | 1 | inner |
280.2.n.b | ✓ | 40 | 40.e | odd | 2 | 1 | inner |
280.2.n.b | ✓ | 40 | 56.e | even | 2 | 1 | inner |
280.2.n.b | ✓ | 40 | 280.n | even | 2 | 1 | inner |
1120.2.n.b | 40 | 4.b | odd | 2 | 1 | ||
1120.2.n.b | 40 | 8.b | even | 2 | 1 | ||
1120.2.n.b | 40 | 20.d | odd | 2 | 1 | ||
1120.2.n.b | 40 | 28.d | even | 2 | 1 | ||
1120.2.n.b | 40 | 40.f | even | 2 | 1 | ||
1120.2.n.b | 40 | 56.h | odd | 2 | 1 | ||
1120.2.n.b | 40 | 140.c | even | 2 | 1 | ||
1120.2.n.b | 40 | 280.c | odd | 2 | 1 |
Hecke kernels
This newform subspace can be constructed as the kernel of the linear operator \( T_{3}^{10} - 20T_{3}^{8} + 137T_{3}^{6} - 382T_{3}^{4} + 432T_{3}^{2} - 160 \) acting on \(S_{2}^{\mathrm{new}}(280, [\chi])\).