sage:from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(7920, base_ring=CyclotomicField(20))
M = H._module
chi = DirichletCharacter(H, M([10,10,10,15,14]))
pari:[g,chi] = znchar(Mod(1943,7920))
χ7920(503,⋅)
χ7920(1223,⋅)
χ7920(1943,⋅)
χ7920(2087,⋅)
χ7920(2807,⋅)
χ7920(3383,⋅)
χ7920(3527,⋅)
χ7920(4967,⋅)
sage:chi.galois_orbit()
pari:order = charorder(g,chi)
[ charpow(g,chi, k % order) | k <-[1..order-1], gcd(k,order)==1 ]
(991,5941,3521,6337,6481) → (−1,−1,−1,−i,e(107))
a |
−1 | 1 | 7 | 13 | 17 | 19 | 23 | 29 | 31 | 37 | 41 | 43 |
χ7920(1943,a) |
1 | 1 | e(203) | e(209) | e(2011) | e(53) | i | e(52) | e(107) | e(2013) | e(53) | −i |
sage:chi.jacobi_sum(n)