from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(1728, base_ring=CyclotomicField(4))
M = H._module
chi = DirichletCharacter(H, M([0,1,2]))
pari: [g,chi] = znchar(Mod(1457,1728))
Basic properties
Modulus: | \(1728\) | |
Conductor: | \(48\) | sage: chi.conductor()
pari: znconreyconductor(g,chi)
|
Order: | \(4\) | sage: chi.multiplicative_order()
pari: charorder(g,chi)
|
Real: | no | |
Primitive: | no, induced from \(\chi_{48}(5,\cdot)\) | sage: chi.is_primitive()
pari: #znconreyconductor(g,chi)==1
|
Minimal: | no | |
Parity: | odd | sage: chi.is_odd()
pari: zncharisodd(g,chi)
|
Galois orbit 1728.j
\(\chi_{1728}(593,\cdot)\) \(\chi_{1728}(1457,\cdot)\)
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: | \(\mathbb{Q}(i)\) |
Fixed field: | 4.0.18432.2 |
Values on generators
\((703,325,1217)\) → \((1,i,-1)\)
First values
\(a\) | \(-1\) | \(1\) | \(5\) | \(7\) | \(11\) | \(13\) | \(17\) | \(19\) | \(23\) | \(25\) | \(29\) | \(31\) |
\( \chi_{ 1728 }(1457, a) \) | \(-1\) | \(1\) | \(-i\) | \(-1\) | \(-i\) | \(-i\) | \(-1\) | \(-i\) | \(1\) | \(-1\) | \(i\) | \(1\) |
sage: chi.jacobi_sum(n)