gp:[N,k,chi] = [32490,2,Mod(1,32490)]
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("32490.1");
S:= CuspForms(chi, 2);
N := Newforms(S);
sage:from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(32490, base_ring=CyclotomicField(2))
chi = DirichletCharacter(H, H._module([0, 0, 0]))
N = Newforms(chi, 2, names="a")
Newform invariants
sage:traces = [1,-1,0,1,1,0,-2,-1,0,-1,-4,0,6,2,0,1,-4,0,0,1,0,4,-4,0,1,-6,
0,-2,6,0,6,-1,0,4,-2,0,-10,0,0,-1,4,0,12,-4,0,4,-4,0,-3,-1,0,6,-10,0,-4,
2,0,-6,10,0,2,-6,0,1,6,0,-12,-4,0,2,8,0,-2,10,0,0,8,0,-10,1,0,-4,-2,0,
-4,-12,0,4,-8,0,-12,-4,0,4,0,0,-2,3,0,1]
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
|
\(2\) |
\( +1 \) |
\(3\) |
\( -1 \) |
\(5\) |
\( -1 \) |
\(19\) |
\( -1 \) |
Inner twists of this newform have not been computed.
Twists of this newform have not been computed.