sage:from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(1295, base_ring=CyclotomicField(4))
M = H._module
chi = DirichletCharacter(H, M([3,0,0]))
pari:[g,chi] = znchar(Mod(778,1295))
χ1295(778,⋅)
χ1295(1037,⋅)
sage:chi.galois_orbit()
pari:order = charorder(g,chi)
[ charpow(g,chi, k % order) | k <-[1..order-1], gcd(k,order)==1 ]
(1037,556,631) → (−i,1,1)
a |
−1 | 1 | 2 | 3 | 4 | 6 | 8 | 9 | 11 | 12 | 13 | 16 |
χ1295(778,a) |
−1 | 1 | −i | i | −1 | 1 | i | −1 | 1 | −i | i | 1 |
sage:chi.jacobi_sum(n)