sage:from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(1476, base_ring=CyclotomicField(2))
M = H._module
chi = DirichletCharacter(H, M([1,0,1]))
gp:[g,chi] = znchar(Mod(163, 1476))
magma:// Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("1476.163");
| Modulus: | \(1476\) |
sage:chi.modulus()
gp:g[1][1]
magma:Modulus(chi);
|
| Conductor: | \(164\) |
sage:chi.conductor()
gp:znconreyconductor(g,chi)
magma:Conductor(chi);
|
| Order: | \(2\) |
sage:chi.multiplicative_order()
gp:charorder(g,chi)
magma:Order(chi);
|
| Real: | yes |
sage:chi.multiplicative_order() <= 2
gp:charorder(g,chi) <= 2
magma:Order(chi) le 2;
|
| Primitive: | no, induced from \(\chi_{164}(163,\cdot)\) |
sage:chi.is_primitive()
gp:#znconreyconductor(g,chi)==1
magma:IsPrimitive(chi);
|
| Minimal: | yes |
| Parity: | odd |
sage:chi.is_odd()
gp:zncharisodd(g,chi)
magma:IsOdd(chi);
|
\(\chi_{1476}(163,\cdot)\)
sage:chi.galois_orbit()
gp:order = charorder(g,chi)
[ charpow(g,chi, k % order) | k <-[1..order-1], gcd(k,order)==1 ]
magma:order := Order(chi);
{ chi^k : k in [1..order-1] | GCD(k,order) eq 1 };
\((739,821,1441)\) → \((-1,1,-1)\)
| \(a\) |
\(-1\) | \(1\) | \(5\) | \(7\) | \(11\) | \(13\) | \(17\) | \(19\) | \(23\) | \(25\) | \(29\) | \(31\) |
| \( \chi_{ 1476 }(163, a) \) |
\(-1\) | \(1\) | \(1\) | \(1\) | \(1\) | \(-1\) | \(-1\) | \(1\) | \(-1\) | \(1\) | \(-1\) | \(-1\) |
sage:chi(x) # x integer
gp:chareval(g,chi,x) \\ x integer, value in Q/Z
magma:chi(x)