from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(7920, base_ring=CyclotomicField(4))
M = H._module
chi = DirichletCharacter(H, M([0,3,0,0,0]))
chi.galois_orbit()
[g,chi] = znchar(Mod(1981,7920))
order = charorder(g,chi)
[ charpow(g,chi, k % order) | k <-[1..order-1], gcd(k,order)==1 ]
Basic properties
| Modulus: | \(7920\) | |
| 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 16.e | sage: chi.is_primitive()
pari: #znconreyconductor(g,chi)==1
|
| Minimal: | yes | |
| Parity: | even | sage: chi.is_odd()
pari: zncharisodd(g,chi)
|
Related number fields
| Field of values: | \(\mathbb{Q}(i)\) |
| Fixed field: | \(\Q(\zeta_{16})^+\) |
Characters in Galois orbit
| Character | \(-1\) | \(1\) | \(7\) | \(13\) | \(17\) | \(19\) | \(23\) | \(29\) | \(31\) | \(37\) | \(41\) | \(43\) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| \(\chi_{7920}(1981,\cdot)\) | \(1\) | \(1\) | \(-1\) | \(i\) | \(1\) | \(i\) | \(-1\) | \(i\) | \(1\) | \(-i\) | \(-1\) | \(-i\) |
| \(\chi_{7920}(5941,\cdot)\) | \(1\) | \(1\) | \(-1\) | \(-i\) | \(1\) | \(-i\) | \(-1\) | \(-i\) | \(1\) | \(i\) | \(-1\) | \(i\) |