sage: from sage.modular.dirichlet import DirichletCharacter
sage: H = DirichletGroup(14, base_ring=CyclotomicField(6))
sage: M = H._module
sage: chi = DirichletCharacter(H, M([4]))
pari: [g,chi] = znchar(Mod(11,14))
Basic properties
| Modulus: | \(14\) | |
| Conductor: | \(7\) | sage: chi.conductor()
pari: znconreyconductor(g,chi)
|
| Order: | \(3\) | sage: chi.multiplicative_order()
pari: charorder(g,chi)
|
| Real: | no | |
| Primitive: | no, induced from \(\chi_{7}(4,\cdot)\) | sage: chi.is_primitive()
pari: #znconreyconductor(g,chi)==1
|
| Minimal: | yes | |
| Parity: | even | sage: chi.is_odd()
pari: zncharisodd(g,chi)
|
Galois orbit 14.c
\(\chi_{14}(9,\cdot)\) \(\chi_{14}(11,\cdot)\)
sage: chi.galois_orbit()
pari: order = charorder(g,chi)
pari: [ charpow(g,chi, k % order) | k <-[1..order-1], gcd(k,order)==1 ]
Values on generators
\(3\) → \(e\left(\frac{2}{3}\right)\)
Values
| \(-1\) | \(1\) | \(3\) | \(5\) | \(9\) | \(11\) |
| \(1\) | \(1\) | \(e\left(\frac{2}{3}\right)\) | \(e\left(\frac{1}{3}\right)\) | \(e\left(\frac{1}{3}\right)\) | \(e\left(\frac{2}{3}\right)\) |
Related number fields
| Field of values: | \(\Q(\sqrt{-3}) \) |
| Fixed field: | \(\Q(\zeta_{7})^+\) |
Gauss sum
sage: chi.gauss_sum(a)
pari: znchargauss(g,chi,a)
\(\displaystyle \tau_{2}(\chi_{14}(11,\cdot)) = \sum_{r\in \Z/14\Z} \chi_{14}(11,r) e\left(\frac{r}{7}\right) = 2.3704694056+1.1751062919i \)
Jacobi sum
sage: chi.jacobi_sum(n)
\( \displaystyle J(\chi_{14}(11,\cdot),\chi_{14}(1,\cdot)) = \sum_{r\in \Z/14\Z} \chi_{14}(11,r) \chi_{14}(1,1-r) = 0 \)
Kloosterman sum
sage: chi.kloosterman_sum(a,b)
\( \displaystyle K(1,2,\chi_{14}(11,·))
= \sum_{r \in \Z/14\Z}
\chi_{14}(11,r) e\left(\frac{1 r + 2 r^{-1}}{14}\right)
= -0.6784479339+-1.1751062919i \)