Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [920,2,Mod(19,920)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(920, base_ring=CyclotomicField(22))
chi = DirichletCharacter(H, H._module([11, 11, 11, 15]))
N = Newforms(chi, 2, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("920.19");
S:= CuspForms(chi, 2);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 920 = 2^{3} \cdot 5 \cdot 23 \) |
Weight: | \( k \) | \(=\) | \( 2 \) |
Character orbit: | \([\chi]\) | \(=\) | 920.bn (of order \(22\), degree \(10\), 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: | \(7.34623698596\) |
Analytic rank: | \(0\) |
Dimension: | \(40\) |
Relative dimension: | \(4\) over \(\Q(\zeta_{22})\) |
Twist minimal: | yes |
Sato-Tate group: | $\mathrm{U}(1)[D_{22}]$ |
$q$-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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
19.1 | −0.587486 | − | 1.28641i | 0 | −1.30972 | + | 1.51150i | −1.20891 | + | 1.88110i | 0 | −0.707757 | + | 0.101760i | 2.71386 | + | 0.796860i | 2.52376 | − | 1.62192i | 3.13009 | + | 0.450039i | ||||
19.2 | −0.587486 | − | 1.28641i | 0 | −1.30972 | + | 1.51150i | 1.20891 | − | 1.88110i | 0 | −4.38552 | + | 0.630543i | 2.71386 | + | 0.796860i | 2.52376 | − | 1.62192i | −3.13009 | − | 0.450039i | ||||
19.3 | 0.587486 | + | 1.28641i | 0 | −1.30972 | + | 1.51150i | −1.20891 | + | 1.88110i | 0 | 4.38552 | − | 0.630543i | −2.71386 | − | 0.796860i | 2.52376 | − | 1.62192i | −3.13009 | − | 0.450039i | ||||
19.4 | 0.587486 | + | 1.28641i | 0 | −1.30972 | + | 1.51150i | 1.20891 | − | 1.88110i | 0 | 0.707757 | − | 0.101760i | −2.71386 | − | 0.796860i | 2.52376 | − | 1.62192i | 3.13009 | + | 0.450039i | ||||
99.1 | −0.926113 | + | 1.06879i | 0 | −0.284630 | − | 1.97964i | −2.03400 | + | 0.928896i | 0 | 0.222863 | + | 0.759001i | 2.37942 | + | 1.52916i | 1.24625 | − | 2.72890i | 0.890917 | − | 3.03418i | ||||
99.2 | −0.926113 | + | 1.06879i | 0 | −0.284630 | − | 1.97964i | 2.03400 | − | 0.928896i | 0 | −1.42732 | − | 4.86099i | 2.37942 | + | 1.52916i | 1.24625 | − | 2.72890i | −0.890917 | + | 3.03418i | ||||
99.3 | 0.926113 | − | 1.06879i | 0 | −0.284630 | − | 1.97964i | −2.03400 | + | 0.928896i | 0 | 1.42732 | + | 4.86099i | −2.37942 | − | 1.52916i | 1.24625 | − | 2.72890i | −0.890917 | + | 3.03418i | ||||
99.4 | 0.926113 | − | 1.06879i | 0 | −0.284630 | − | 1.97964i | 2.03400 | − | 0.928896i | 0 | −0.222863 | − | 0.759001i | −2.37942 | − | 1.52916i | 1.24625 | − | 2.72890i | 0.890917 | − | 3.03418i | ||||
339.1 | −0.587486 | + | 1.28641i | 0 | −1.30972 | − | 1.51150i | −1.20891 | − | 1.88110i | 0 | −0.707757 | − | 0.101760i | 2.71386 | − | 0.796860i | 2.52376 | + | 1.62192i | 3.13009 | − | 0.450039i | ||||
339.2 | −0.587486 | + | 1.28641i | 0 | −1.30972 | − | 1.51150i | 1.20891 | + | 1.88110i | 0 | −4.38552 | − | 0.630543i | 2.71386 | − | 0.796860i | 2.52376 | + | 1.62192i | −3.13009 | + | 0.450039i | ||||
339.3 | 0.587486 | − | 1.28641i | 0 | −1.30972 | − | 1.51150i | −1.20891 | − | 1.88110i | 0 | 4.38552 | + | 0.630543i | −2.71386 | + | 0.796860i | 2.52376 | + | 1.62192i | −3.13009 | + | 0.450039i | ||||
339.4 | 0.587486 | − | 1.28641i | 0 | −1.30972 | − | 1.51150i | 1.20891 | + | 1.88110i | 0 | 0.707757 | + | 0.101760i | −2.71386 | + | 0.796860i | 2.52376 | + | 1.62192i | 3.13009 | − | 0.450039i | ||||
379.1 | −1.18971 | + | 0.764582i | 0 | 0.830830 | − | 1.81926i | −0.629973 | − | 2.14549i | 0 | 3.99895 | − | 3.46511i | 0.402527 | + | 2.79964i | −2.87848 | − | 0.845198i | 2.38989 | + | 2.07085i | ||||
379.2 | −1.18971 | + | 0.764582i | 0 | 0.830830 | − | 1.81926i | 0.629973 | + | 2.14549i | 0 | −1.68762 | + | 1.46233i | 0.402527 | + | 2.79964i | −2.87848 | − | 0.845198i | −2.38989 | − | 2.07085i | ||||
379.3 | 1.18971 | − | 0.764582i | 0 | 0.830830 | − | 1.81926i | −0.629973 | − | 2.14549i | 0 | 1.68762 | − | 1.46233i | −0.402527 | − | 2.79964i | −2.87848 | − | 0.845198i | −2.38989 | − | 2.07085i | ||||
379.4 | 1.18971 | − | 0.764582i | 0 | 0.830830 | − | 1.81926i | 0.629973 | + | 2.14549i | 0 | −3.99895 | + | 3.46511i | −0.402527 | − | 2.79964i | −2.87848 | − | 0.845198i | 2.38989 | + | 2.07085i | ||||
419.1 | −1.35693 | − | 0.398430i | 0 | 1.68251 | + | 1.08128i | −2.21331 | − | 0.318226i | 0 | 4.62806 | − | 2.11357i | −1.85223 | − | 2.13758i | −0.426945 | − | 2.96946i | 2.87651 | + | 1.31366i | ||||
419.2 | −1.35693 | − | 0.398430i | 0 | 1.68251 | + | 1.08128i | 2.21331 | + | 0.318226i | 0 | −3.17837 | + | 1.45151i | −1.85223 | − | 2.13758i | −0.426945 | − | 2.96946i | −2.87651 | − | 1.31366i | ||||
419.3 | 1.35693 | + | 0.398430i | 0 | 1.68251 | + | 1.08128i | −2.21331 | − | 0.318226i | 0 | 3.17837 | − | 1.45151i | 1.85223 | + | 2.13758i | −0.426945 | − | 2.96946i | −2.87651 | − | 1.31366i | ||||
419.4 | 1.35693 | + | 0.398430i | 0 | 1.68251 | + | 1.08128i | 2.21331 | + | 0.318226i | 0 | −4.62806 | + | 2.11357i | 1.85223 | + | 2.13758i | −0.426945 | − | 2.96946i | 2.87651 | + | 1.31366i | ||||
See all 40 embeddings |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
40.e | odd | 2 | 1 | CM by \(\Q(\sqrt{-10}) \) |
5.b | even | 2 | 1 | inner |
8.d | odd | 2 | 1 | inner |
23.d | odd | 22 | 1 | inner |
115.i | odd | 22 | 1 | inner |
184.j | even | 22 | 1 | inner |
920.bn | even | 22 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 920.2.bn.a | ✓ | 40 |
5.b | even | 2 | 1 | inner | 920.2.bn.a | ✓ | 40 |
8.d | odd | 2 | 1 | inner | 920.2.bn.a | ✓ | 40 |
23.d | odd | 22 | 1 | inner | 920.2.bn.a | ✓ | 40 |
40.e | odd | 2 | 1 | CM | 920.2.bn.a | ✓ | 40 |
115.i | odd | 22 | 1 | inner | 920.2.bn.a | ✓ | 40 |
184.j | even | 22 | 1 | inner | 920.2.bn.a | ✓ | 40 |
920.bn | even | 22 | 1 | inner | 920.2.bn.a | ✓ | 40 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
920.2.bn.a | ✓ | 40 | 1.a | even | 1 | 1 | trivial |
920.2.bn.a | ✓ | 40 | 5.b | even | 2 | 1 | inner |
920.2.bn.a | ✓ | 40 | 8.d | odd | 2 | 1 | inner |
920.2.bn.a | ✓ | 40 | 23.d | odd | 22 | 1 | inner |
920.2.bn.a | ✓ | 40 | 40.e | odd | 2 | 1 | CM |
920.2.bn.a | ✓ | 40 | 115.i | odd | 22 | 1 | inner |
920.2.bn.a | ✓ | 40 | 184.j | even | 22 | 1 | inner |
920.2.bn.a | ✓ | 40 | 920.bn | even | 22 | 1 | inner |
Hecke kernels
This newform subspace can be constructed as the kernel of the linear operator \( T_{3} \) acting on \(S_{2}^{\mathrm{new}}(920, [\chi])\).