from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(3920, base_ring=CyclotomicField(28))
M = H._module
chi = DirichletCharacter(H, M([14,21,0,20]))
pari: [g,chi] = znchar(Mod(211,3920))
Basic properties
| Modulus: | \(3920\) | |
| Conductor: | \(784\) | sage: chi.conductor()
pari: znconreyconductor(g,chi)
|
| Order: | \(28\) | sage: chi.multiplicative_order()
pari: charorder(g,chi)
|
| Real: | no | |
| Primitive: | no, induced from \(\chi_{784}(211,\cdot)\) | sage: chi.is_primitive()
pari: #znconreyconductor(g,chi)==1
|
| Minimal: | yes | |
| Parity: | odd | sage: chi.is_odd()
pari: zncharisodd(g,chi)
|
Galois orbit 3920.eb
\(\chi_{3920}(211,\cdot)\) \(\chi_{3920}(771,\cdot)\) \(\chi_{3920}(1051,\cdot)\) \(\chi_{3920}(1331,\cdot)\) \(\chi_{3920}(1611,\cdot)\) \(\chi_{3920}(1891,\cdot)\) \(\chi_{3920}(2171,\cdot)\) \(\chi_{3920}(2731,\cdot)\) \(\chi_{3920}(3011,\cdot)\) \(\chi_{3920}(3291,\cdot)\) \(\chi_{3920}(3571,\cdot)\) \(\chi_{3920}(3851,\cdot)\)
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: | \(\Q(\zeta_{28})\) |
| Fixed field: | Number field defined by a degree 28 polynomial |
Values on generators
\((1471,981,3137,3041)\) → \((-1,-i,1,e\left(\frac{5}{7}\right))\)
First values
| \(a\) | \(-1\) | \(1\) | \(3\) | \(9\) | \(11\) | \(13\) | \(17\) | \(19\) | \(23\) | \(27\) | \(29\) | \(31\) |
| \( \chi_{ 3920 }(211, a) \) | \(-1\) | \(1\) | \(e\left(\frac{13}{28}\right)\) | \(e\left(\frac{13}{14}\right)\) | \(e\left(\frac{23}{28}\right)\) | \(e\left(\frac{23}{28}\right)\) | \(e\left(\frac{6}{7}\right)\) | \(-i\) | \(e\left(\frac{1}{7}\right)\) | \(e\left(\frac{11}{28}\right)\) | \(e\left(\frac{3}{28}\right)\) | \(-1\) |
sage: chi.jacobi_sum(n)