sage:from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(2156, base_ring=CyclotomicField(42))
M = H._module
chi = DirichletCharacter(H, M([0,13,0]))
pari:[g,chi] = znchar(Mod(353,2156))
χ2156(45,⋅)
χ2156(89,⋅)
χ2156(353,⋅)
χ2156(397,⋅)
χ2156(661,⋅)
χ2156(969,⋅)
χ2156(1013,⋅)
χ2156(1277,⋅)
χ2156(1321,⋅)
χ2156(1585,⋅)
χ2156(1629,⋅)
χ2156(1937,⋅)
sage:chi.galois_orbit()
pari:order = charorder(g,chi)
[ charpow(g,chi, k % order) | k <-[1..order-1], gcd(k,order)==1 ]
(1079,1277,981) → (1,e(4213),1)
a |
−1 | 1 | 3 | 5 | 9 | 13 | 15 | 17 | 19 | 23 | 25 | 27 |
χ2156(353,a) |
−1 | 1 | e(4213) | e(4241) | e(2113) | e(143) | e(72) | e(4231) | e(65) | e(2116) | e(2120) | e(1413) |
sage:chi.jacobi_sum(n)