from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(196, base_ring=CyclotomicField(42))
M = H._module
chi = DirichletCharacter(H, M([21,4]))
pari: [g,chi] = znchar(Mod(179,196))
Basic properties
| Modulus: | \(196\) | |
| Conductor: | \(196\) | sage: chi.conductor()
pari: znconreyconductor(g,chi)
|
| Order: | \(42\) | sage: chi.multiplicative_order()
pari: charorder(g,chi)
|
| Real: | no | |
| Primitive: | yes | sage: chi.is_primitive()
pari: #znconreyconductor(g,chi)==1
|
| Minimal: | yes | |
| Parity: | odd | sage: chi.is_odd()
pari: zncharisodd(g,chi)
|
Galois orbit 196.o
\(\chi_{196}(11,\cdot)\) \(\chi_{196}(23,\cdot)\) \(\chi_{196}(39,\cdot)\) \(\chi_{196}(51,\cdot)\) \(\chi_{196}(95,\cdot)\) \(\chi_{196}(107,\cdot)\) \(\chi_{196}(123,\cdot)\) \(\chi_{196}(135,\cdot)\) \(\chi_{196}(151,\cdot)\) \(\chi_{196}(163,\cdot)\) \(\chi_{196}(179,\cdot)\) \(\chi_{196}(191,\cdot)\)
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: | \(\Q(\zeta_{21})\) |
| Fixed field: | 42.0.74252462132603256348231837398371002884673933378885582779211491265789772693504.1 |
Values on generators
\((99,101)\) → \((-1,e\left(\frac{2}{21}\right))\)
First values
| \(a\) | \(-1\) | \(1\) | \(3\) | \(5\) | \(9\) | \(11\) | \(13\) | \(15\) | \(17\) | \(19\) | \(23\) | \(25\) |
| \( \chi_{ 196 }(179, a) \) | \(-1\) | \(1\) | \(e\left(\frac{25}{42}\right)\) | \(e\left(\frac{16}{21}\right)\) | \(e\left(\frac{4}{21}\right)\) | \(e\left(\frac{13}{42}\right)\) | \(e\left(\frac{1}{7}\right)\) | \(e\left(\frac{5}{14}\right)\) | \(e\left(\frac{8}{21}\right)\) | \(e\left(\frac{5}{6}\right)\) | \(e\left(\frac{5}{42}\right)\) | \(e\left(\frac{11}{21}\right)\) |
sage: chi.jacobi_sum(n)
Gauss sum
sage: chi.gauss_sum(a)
pari: znchargauss(g,chi,a)
Jacobi sum
sage: chi.jacobi_sum(n)
Kloosterman sum
sage: chi.kloosterman_sum(a,b)