Properties

Label 920.2.bn.a
Level $920$
Weight $2$
Character orbit 920.bn
Analytic conductor $7.346$
Analytic rank $0$
Dimension $40$
CM discriminant -40
Inner twists $8$

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Show commands: Magma / PariGP / SageMath

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.

\(\operatorname{Tr}(f)(q) = \) \( 40 q - 8 q^{4} - 12 q^{9}+O(q^{10}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q) = \) \( 40 q - 8 q^{4} - 12 q^{9} - 16 q^{16} + 20 q^{25} + 32 q^{26} - 180 q^{35} - 24 q^{36} - 8 q^{41} - 24 q^{46} + 52 q^{49} + 252 q^{59} - 32 q^{64} - 36 q^{81} + 16 q^{94}+O(q^{100}) \) Copy content Toggle raw display

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
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 19.4
Significant digits:
Format:

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 \(S_{2}^{\mathrm{new}}(920, [\chi])\). Copy content Toggle raw display