gp:[N,k,chi] = [10470,2,Mod(1,10470)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
magma:// Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("10470.1");
S:= CuspForms(chi, 2);
N := Newforms(S);
sage:from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(10470, base_ring=CyclotomicField(2))
chi = DirichletCharacter(H, H._module([0, 0, 0]))
N = Newforms(chi, 2, names="a")
Newform invariants
sage:traces = [1,1,-1,1,1,-1,5,1,1,1,2,-1,4,5,-1,1,7,1,-6,1,-5,2,-4,-1,1,4,
-1,5,-3,-1,4,1,-2,7,5,1,-3,-6,-4,1,0,-5,0,2,1,-4,10,-1,18,1,-7,4,-3,-1,
2,5,6,-3,12,-1,-1,4,5,1,4,-2,-5,7,4,5,13,1,4,-3,-1,-6,10,-4,-8,1,1,0,-16,
-5,7,0,3,2,-6,1,20,-4,-4,10,-6,-1,-2,18,2,1]
f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(None)] == traces)
gp:f = lf[1] \\ Warning: the index may be different
sage:f.q_expansion() # note that sage often uses an isomorphic number field
gp:mfcoefs(f, 20)
| \( p \) |
Sign
|
| \(2\) |
\( -1 \) |
| \(3\) |
\( +1 \) |
| \(5\) |
\( -1 \) |
| \(349\) |
\( -1 \) |
This newform does not admit any (nontrivial) inner twists.
Twists of this newform have not been computed.