sage:from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(2156, base_ring=CyclotomicField(14))
M = H._module
chi = DirichletCharacter(H, M([0,1,0]))
pari:[g,chi] = znchar(Mod(1497,2156))
χ2156(265,⋅)
χ2156(573,⋅)
χ2156(1189,⋅)
χ2156(1497,⋅)
χ2156(1805,⋅)
χ2156(2113,⋅)
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(141),1)
a |
−1 | 1 | 3 | 5 | 9 | 13 | 15 | 17 | 19 | 23 | 25 | 27 |
χ2156(1497,a) |
−1 | 1 | e(141) | e(141) | e(71) | e(145) | e(71) | e(1411) | −1 | e(75) | e(71) | e(143) |
sage:chi.jacobi_sum(n)