sage: from sage.modular.dirichlet import DirichletCharacter
sage: H = DirichletGroup(61, base_ring=CyclotomicField(30))
sage: M = H._module
sage: chi = DirichletCharacter(H, M([4]))
pari: [g,chi] = znchar(Mod(12,61))
Basic properties
| Modulus: | \(61\) | |
| Conductor: | \(61\) | sage: chi.conductor()
pari: znconreyconductor(g,chi)
|
| Order: | \(15\) | 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 61.i
\(\chi_{61}(12,\cdot)\) \(\chi_{61}(15,\cdot)\) \(\chi_{61}(16,\cdot)\) \(\chi_{61}(22,\cdot)\) \(\chi_{61}(25,\cdot)\) \(\chi_{61}(42,\cdot)\) \(\chi_{61}(56,\cdot)\) \(\chi_{61}(57,\cdot)\)
sage: chi.galois_orbit()
pari: order = charorder(g,chi)
pari: [ charpow(g,chi, k % order) | k <-[1..order-1], gcd(k,order)==1 ]
Related number fields
| Field of values: | \(\Q(\zeta_{15})\) |
| Fixed field: | 15.15.9876832533361318095112441.1 |
Values on generators
\(2\) → \(e\left(\frac{2}{15}\right)\)
Values
| \(-1\) | \(1\) | \(2\) | \(3\) | \(4\) | \(5\) | \(6\) | \(7\) | \(8\) | \(9\) | \(10\) | \(11\) |
| \(1\) | \(1\) | \(e\left(\frac{2}{15}\right)\) | \(e\left(\frac{4}{5}\right)\) | \(e\left(\frac{4}{15}\right)\) | \(e\left(\frac{14}{15}\right)\) | \(e\left(\frac{14}{15}\right)\) | \(e\left(\frac{8}{15}\right)\) | \(e\left(\frac{2}{5}\right)\) | \(e\left(\frac{3}{5}\right)\) | \(e\left(\frac{1}{15}\right)\) | \(1\) |
Gauss sum
sage: chi.gauss_sum(a)
pari: znchargauss(g,chi,a)
\(\displaystyle \tau_{2}(\chi_{61}(12,\cdot)) = \sum_{r\in \Z/61\Z} \chi_{61}(12,r) e\left(\frac{2r}{61}\right) = 6.6024548441+-4.1722404091i \)
Jacobi sum
sage: chi.jacobi_sum(n)
\( \displaystyle J(\chi_{61}(12,\cdot),\chi_{61}(1,\cdot)) = \sum_{r\in \Z/61\Z} \chi_{61}(12,r) \chi_{61}(1,1-r) = -1 \)
Kloosterman sum
sage: chi.kloosterman_sum(a,b)
\( \displaystyle K(1,2,\chi_{61}(12,·))
= \sum_{r \in \Z/61\Z}
\chi_{61}(12,r) e\left(\frac{1 r + 2 r^{-1}}{61}\right)
= 6.0578706169+2.6971377705i \)