sage:from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(1200, base_ring=CyclotomicField(20))
M = H._module
chi = DirichletCharacter(H, M([10,15,0,19]))
pari:[g,chi] = znchar(Mod(163,1200))
χ1200(163,⋅)
χ1200(187,⋅)
χ1200(403,⋅)
χ1200(427,⋅)
χ1200(667,⋅)
χ1200(883,⋅)
χ1200(1123,⋅)
χ1200(1147,⋅)
sage:chi.galois_orbit()
pari:order = charorder(g,chi)
[ charpow(g,chi, k % order) | k <-[1..order-1], gcd(k,order)==1 ]
(751,901,401,577) → (−1,−i,1,e(2019))
a |
−1 | 1 | 7 | 11 | 13 | 17 | 19 | 23 | 29 | 31 | 37 | 41 |
χ1200(163,a) |
1 | 1 | −i | e(209) | e(103) | e(207) | e(2017) | e(209) | e(203) | e(101) | e(103) | e(103) |
sage:chi.jacobi_sum(n)