from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(1960, base_ring=CyclotomicField(28))
M = H._module
chi = DirichletCharacter(H, M([14,0,7,12]))
pari: [g,chi] = znchar(Mod(127,1960))
Basic properties
| Modulus: | \(1960\) | |
| Conductor: | \(980\) | sage: chi.conductor()
pari: znconreyconductor(g,chi)
|
| Order: | \(28\) | sage: chi.multiplicative_order()
pari: charorder(g,chi)
|
| Real: | no | |
| Primitive: | no, induced from \(\chi_{980}(127,\cdot)\) | sage: chi.is_primitive()
pari: #znconreyconductor(g,chi)==1
|
| Minimal: | no | |
| Parity: | even | sage: chi.is_odd()
pari: zncharisodd(g,chi)
|
Galois orbit 1960.cu
\(\chi_{1960}(127,\cdot)\) \(\chi_{1960}(183,\cdot)\) \(\chi_{1960}(407,\cdot)\) \(\chi_{1960}(463,\cdot)\) \(\chi_{1960}(743,\cdot)\) \(\chi_{1960}(967,\cdot)\) \(\chi_{1960}(1023,\cdot)\) \(\chi_{1960}(1247,\cdot)\) \(\chi_{1960}(1303,\cdot)\) \(\chi_{1960}(1527,\cdot)\) \(\chi_{1960}(1583,\cdot)\) \(\chi_{1960}(1807,\cdot)\)
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
\((1471,981,1177,1081)\) → \((-1,1,i,e\left(\frac{3}{7}\right))\)
First values
| \(a\) | \(-1\) | \(1\) | \(3\) | \(9\) | \(11\) | \(13\) | \(17\) | \(19\) | \(23\) | \(27\) | \(29\) | \(31\) |
| \( \chi_{ 1960 }(127, a) \) | \(1\) | \(1\) | \(e\left(\frac{19}{28}\right)\) | \(e\left(\frac{5}{14}\right)\) | \(e\left(\frac{9}{14}\right)\) | \(e\left(\frac{25}{28}\right)\) | \(e\left(\frac{27}{28}\right)\) | \(1\) | \(e\left(\frac{15}{28}\right)\) | \(e\left(\frac{1}{28}\right)\) | \(e\left(\frac{3}{14}\right)\) | \(-1\) |
sage: chi.jacobi_sum(n)