from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(1960, base_ring=CyclotomicField(28))
M = H._module
chi = DirichletCharacter(H, M([0,14,21,22]))
pari: [g,chi] = znchar(Mod(13,1960))
Basic properties
| Modulus: | \(1960\) | |
| Conductor: | \(1960\) | sage: chi.conductor()
pari: znconreyconductor(g,chi)
|
| Order: | \(28\) | 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 1960.cr
\(\chi_{1960}(13,\cdot)\) \(\chi_{1960}(237,\cdot)\) \(\chi_{1960}(517,\cdot)\) \(\chi_{1960}(573,\cdot)\) \(\chi_{1960}(797,\cdot)\) \(\chi_{1960}(853,\cdot)\) \(\chi_{1960}(1133,\cdot)\) \(\chi_{1960}(1357,\cdot)\) \(\chi_{1960}(1413,\cdot)\) \(\chi_{1960}(1637,\cdot)\) \(\chi_{1960}(1693,\cdot)\) \(\chi_{1960}(1917,\cdot)\)
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: | 28.28.3771654561118105678109014156786321272080955342848000000000000000000000.1 |
Values on generators
\((1471,981,1177,1081)\) → \((1,-1,-i,e\left(\frac{11}{14}\right))\)
First values
| \(a\) | \(-1\) | \(1\) | \(3\) | \(9\) | \(11\) | \(13\) | \(17\) | \(19\) | \(23\) | \(27\) | \(29\) | \(31\) |
| \( \chi_{ 1960 }(13, a) \) | \(1\) | \(1\) | \(e\left(\frac{15}{28}\right)\) | \(e\left(\frac{1}{14}\right)\) | \(e\left(\frac{13}{14}\right)\) | \(e\left(\frac{19}{28}\right)\) | \(e\left(\frac{11}{28}\right)\) | \(-1\) | \(e\left(\frac{3}{28}\right)\) | \(e\left(\frac{17}{28}\right)\) | \(e\left(\frac{1}{7}\right)\) | \(-1\) |
sage: chi.jacobi_sum(n)