# Properties

 Conductor 40 Order 4 Real No Primitive No Parity Even Orbit Label 120.v

# 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(120)

sage: chi = H[67]

pari: [g,chi] = znchar(Mod(67,120))

## Basic properties

 sage: chi.conductor()  pari: znconreyconductor(g,chi) Conductor = 40 sage: chi.multiplicative_order()  pari: charorder(g,chi) Order = 4 Real = No sage: chi.is_primitive()  pari: #znconreyconductor(g,chi)==1 \\ if not primitive returns [cond,factorization] Primitive = No sage: chi.is_odd()  pari: zncharisodd(g,chi) Parity = Even Orbit label = 120.v Orbit index = 22

## 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

$$(31,61,41,97)$$ → $$(-1,-1,1,i)$$

## Values

 -1 1 7 11 13 17 19 23 29 31 37 41 $$1$$ $$1$$ $$-i$$ $$1$$ $$i$$ $$i$$ $$-1$$ $$i$$ $$1$$ $$-1$$ $$-i$$ $$1$$
value at  e.g. 2

## Related number fields

 Field of values $$\Q(i)$$

## Gauss sum

sage: chi.sage_character().gauss_sum(a)

pari: znchargauss(g,chi,a)

$$\tau_{ a }( \chi_{ 120 }(67,·) )\;$$ at $$\;a =$$ e.g. 2
$$\displaystyle \tau_{2}(\chi_{120}(67,\cdot)) = \sum_{r\in \Z/120\Z} \chi_{120}(67,r) e\left(\frac{r}{60}\right) = 0.0$$

## Jacobi sum

sage: chi.sage_character().jacobi_sum(n)

$$J(\chi_{ 120 }(67,·),\chi_{ 120 }(n,·)) \;$$ for $$\; n =$$ e.g. 1
$$\displaystyle J(\chi_{120}(67,\cdot),\chi_{120}(1,\cdot)) = \sum_{r\in \Z/120\Z} \chi_{120}(67,r) \chi_{120}(1,1-r) = 0$$

## Kloosterman sum

sage: chi.sage_character().kloosterman_sum(a,b)

$$K(a,b,\chi_{ 120 }(67,·)) \;$$ at $$\; a,b =$$ e.g. 1,2
$$\displaystyle K(1,2,\chi_{120}(67,·)) = \sum_{r \in \Z/120\Z} \chi_{120}(67,r) e\left(\frac{1 r + 2 r^{-1}}{120}\right) = 6.6500310044+6.6500310044i$$