from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(2856, base_ring=CyclotomicField(4))
M = H._module
chi = DirichletCharacter(H, M([0,2,2,2,1]))
pari: [g,chi] = znchar(Mod(965,2856))
Basic properties
Modulus: | \(2856\) | |
Conductor: | \(2856\) | sage: chi.conductor()
pari: znconreyconductor(g,chi)
|
Order: | \(4\) | sage: chi.multiplicative_order()
pari: charorder(g,chi)
|
Real: | no | |
Primitive: | yes | sage: chi.is_primitive()
pari: #znconreyconductor(g,chi)==1
|
Minimal: | yes | |
Parity: | even | sage: chi.is_odd()
pari: zncharisodd(g,chi)
|
Galois orbit 2856.bs
\(\chi_{2856}(293,\cdot)\) \(\chi_{2856}(965,\cdot)\)
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: | 4.4.138664512.1 |
Values on generators
\((2143,1429,953,409,2689)\) → \((1,-1,-1,-1,i)\)
First values
\(a\) | \(-1\) | \(1\) | \(5\) | \(11\) | \(13\) | \(19\) | \(23\) | \(25\) | \(29\) | \(31\) | \(37\) | \(41\) |
\( \chi_{ 2856 }(965, a) \) | \(1\) | \(1\) | \(-i\) | \(-i\) | \(1\) | \(-1\) | \(i\) | \(-1\) | \(i\) | \(-i\) | \(-i\) | \(-i\) |
sage: chi.jacobi_sum(n)