from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(2016, base_ring=CyclotomicField(4))
M = H._module
chi = DirichletCharacter(H, M([2,3,0,0]))
pari: [g,chi] = znchar(Mod(631,2016))
Basic properties
| Modulus: | \(2016\) | |
| Conductor: | \(16\) | sage: chi.conductor()
pari: znconreyconductor(g,chi)
|
| Order: | \(4\) | sage: chi.multiplicative_order()
pari: charorder(g,chi)
|
| Real: | no | |
| Primitive: | no, induced from \(\chi_{16}(3,\cdot)\) | sage: chi.is_primitive()
pari: #znconreyconductor(g,chi)==1
|
| Minimal: | no | |
| Parity: | odd | sage: chi.is_odd()
pari: zncharisodd(g,chi)
|
Galois orbit 2016.ba
\(\chi_{2016}(631,\cdot)\) \(\chi_{2016}(1639,\cdot)\)
sage: chi.galois_orbit()
order = charorder(g,chi)
[ charpow(g,chi, k % order) | k <-[1..order-1], gcd(k,order)==1 ]
Related number fields
| Field of values: | \(\Q(\sqrt{-1}) \) |
| Fixed field: | 4.0.2048.2 |
Values on generators
\((127,1765,1793,577)\) → \((-1,-i,1,1)\)
First values
| \(a\) | \(-1\) | \(1\) | \(5\) | \(11\) | \(13\) | \(17\) | \(19\) | \(23\) | \(25\) | \(29\) | \(31\) | \(37\) |
| \( \chi_{ 2016 }(631, a) \) | \(-1\) | \(1\) | \(-i\) | \(i\) | \(i\) | \(1\) | \(-i\) | \(1\) | \(-1\) | \(i\) | \(-1\) | \(-i\) |
sage: chi.jacobi_sum(n)