sage:from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(2100, base_ring=CyclotomicField(4))
M = H._module
chi = DirichletCharacter(H, M([0,2,1,2]))
pari:[g,chi] = znchar(Mod(2057,2100))
χ2100(293,⋅)
χ2100(2057,⋅)
sage:chi.galois_orbit()
pari:order = charorder(g,chi)
[ charpow(g,chi, k % order) | k <-[1..order-1], gcd(k,order)==1 ]
(1051,701,1177,1501) → (1,−1,i,−1)
a |
−1 | 1 | 11 | 13 | 17 | 19 | 23 | 29 | 31 | 37 | 41 | 43 |
χ2100(2057,a) |
−1 | 1 | −1 | i | i | 1 | i | 1 | −1 | i | 1 | −i |
sage:chi.jacobi_sum(n)