from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(1911, base_ring=CyclotomicField(4))
M = H._module
chi = DirichletCharacter(H, M([2,0,3]))
pari: [g,chi] = znchar(Mod(785,1911))
Basic properties
Modulus: | \(1911\) | |
Conductor: | \(39\) | sage: chi.conductor()
pari: znconreyconductor(g,chi)
|
Order: | \(4\) | sage: chi.multiplicative_order()
pari: charorder(g,chi)
|
Real: | no | |
Primitive: | no, induced from \(\chi_{39}(5,\cdot)\) | sage: chi.is_primitive()
pari: #znconreyconductor(g,chi)==1
|
Minimal: | yes | |
Parity: | even | sage: chi.is_odd()
pari: zncharisodd(g,chi)
|
Galois orbit 1911.n
\(\chi_{1911}(785,\cdot)\) \(\chi_{1911}(1373,\cdot)\)
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: | 4.4.19773.1 |
Values on generators
\((638,1522,1471)\) → \((-1,1,-i)\)
First values
\(a\) | \(-1\) | \(1\) | \(2\) | \(4\) | \(5\) | \(8\) | \(10\) | \(11\) | \(16\) | \(17\) | \(19\) | \(20\) |
\( \chi_{ 1911 }(785, a) \) | \(1\) | \(1\) | \(i\) | \(-1\) | \(i\) | \(-i\) | \(-1\) | \(-i\) | \(1\) | \(1\) | \(-i\) | \(-i\) |
sage: chi.jacobi_sum(n)