sage:from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(1920, base_ring=CyclotomicField(8))
M = H._module
chi = DirichletCharacter(H, M([4,3,0,2]))
pari:[g,chi] = znchar(Mod(1327,1920))
χ1920(367,⋅)
χ1920(463,⋅)
χ1920(1327,⋅)
χ1920(1423,⋅)
sage:chi.galois_orbit()
pari:order = charorder(g,chi)
[ charpow(g,chi, k % order) | k <-[1..order-1], gcd(k,order)==1 ]
(511,901,641,1537) → (−1,e(83),1,i)
a |
−1 | 1 | 7 | 11 | 13 | 17 | 19 | 23 | 29 | 31 | 37 | 41 |
χ1920(1327,a) |
1 | 1 | −1 | e(83) | e(83) | −i | e(85) | −1 | e(85) | −1 | e(85) | i |
sage:chi.jacobi_sum(n)