# Properties

 Conductor 12 Order 2 Real Yes Primitive Yes Parity Even Orbit Label 12.b

# Related objects

Show commands for: SageMath / Pari/GP
sage: from dirichlet_conrey import DirichletGroup_conrey # requires nonstandard Sage package to be installed
sage: H = DirichletGroup_conrey(12)
sage: chi = H[11]
pari: [g,chi] = znchar(Mod(11,12))

## Kronecker symbol representation

sage: kronecker_character(12)
pari: znchartokronecker(g,chi)

$$\displaystyle\left(\frac{12}{\bullet}\right)$$

## Basic properties

 sage: chi.conductor() pari: znconreyconductor(g,chi) Conductor = 12 sage: chi.multiplicative_order() pari: charorder(g,chi) Order = 2 Real = Yes sage: chi.is_primitive() pari: #znconreyconductor(g,chi)==1 \\ if not primitive returns [cond,factorization] Primitive = Yes sage: chi.is_odd() pari: zncharisodd(g,chi) Parity = Even Orbit label = 12.b Orbit index = 2

## Galois orbit

sage: chi.sage_character().galois_orbit()
pari: order = charorder(g,chi)
pari: [ charpow(g,chi, k % order) | k <-[1..order-1], gcd(k,order)==1 ]

## Values on generators

$$(7,5)$$ → $$(-1,-1)$$

## Values

 -1 1 5 7 $$1$$ $$1$$ $$-1$$ $$-1$$
value at  e.g. 2

## Related number fields

 Field of values $$\Q$$

## Gauss sum

sage: chi.sage_character().gauss_sum(a)
pari: znchargauss(g,chi,a)
$$\tau_{ a }( \chi_{ 12 }(11,·) )\;$$ at $$\;a =$$ e.g. 2
$$\displaystyle \tau_{2}(\chi_{12}(11,\cdot)) = \sum_{r\in \Z/12\Z} \chi_{12}(11,r) e\left(\frac{r}{6}\right) = 0.0$$

## Jacobi sum

sage: chi.sage_character().jacobi_sum(n)
$$J(\chi_{ 12 }(11,·),\chi_{ 12 }(n,·)) \;$$ for $$\; n =$$ e.g. 1
$$\displaystyle J(\chi_{12}(11,\cdot),\chi_{12}(1,\cdot)) = \sum_{r\in \Z/12\Z} \chi_{12}(11,r) \chi_{12}(1,1-r) = 0$$

## Kloosterman sum

sage: chi.sage_character().kloosterman_sum(a,b)
$$K(a,b,\chi_{ 12 }(11,·)) \;$$ at $$\; a,b =$$ e.g. 1,2
$$\displaystyle K(1,2,\chi_{12}(11,·)) = \sum_{r \in \Z/12\Z} \chi_{12}(11,r) e\left(\frac{1 r + 2 r^{-1}}{12}\right) = 0.0$$