# Properties

 Label 199.90 Modulus $199$ Conductor $199$ Order $33$ Real no Primitive yes Minimal yes Parity even

# Learn more

Show commands for: Pari/GP / SageMath
sage: from sage.modular.dirichlet import DirichletCharacter

sage: H = DirichletGroup(199, base_ring=CyclotomicField(66))

sage: M = H._module

sage: chi = DirichletCharacter(H, M([16]))

pari: [g,chi] = znchar(Mod(90,199))

## Basic properties

 Modulus: $$199$$ Conductor: $$199$$ sage: chi.conductor()  pari: znconreyconductor(g,chi) Order: $$33$$ 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 199.i

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

$$3$$ → $$e\left(\frac{8}{33}\right)$$

## Values

 $$-1$$ $$1$$ $$2$$ $$3$$ $$4$$ $$5$$ $$6$$ $$7$$ $$8$$ $$9$$ $$10$$ $$11$$ $$1$$ $$1$$ $$e\left(\frac{23}{33}\right)$$ $$e\left(\frac{8}{33}\right)$$ $$e\left(\frac{13}{33}\right)$$ $$e\left(\frac{5}{11}\right)$$ $$e\left(\frac{31}{33}\right)$$ $$e\left(\frac{14}{33}\right)$$ $$e\left(\frac{1}{11}\right)$$ $$e\left(\frac{16}{33}\right)$$ $$e\left(\frac{5}{33}\right)$$ $$e\left(\frac{9}{11}\right)$$
 value at e.g. 2

## Gauss sum

sage: chi.gauss_sum(a)

pari: znchargauss(g,chi,a)

$$\tau_{ a }( \chi_{ 199 }(90,·) )\;$$ at $$\;a =$$ e.g. 2
$$\displaystyle \tau_{2}(\chi_{199}(90,\cdot)) = \sum_{r\in \Z/199\Z} \chi_{199}(90,r) e\left(\frac{2r}{199}\right) = 12.0711455579+-7.2998249924i$$

## Jacobi sum

sage: chi.jacobi_sum(n)

$$J(\chi_{ 199 }(90,·),\chi_{ 199 }(n,·)) \;$$ for $$\; n =$$ e.g. 1
$$\displaystyle J(\chi_{199}(90,\cdot),\chi_{199}(1,\cdot)) = \sum_{r\in \Z/199\Z} \chi_{199}(90,r) \chi_{199}(1,1-r) = -1$$

## Kloosterman sum

sage: chi.kloosterman_sum(a,b)

$$K(a,b,\chi_{ 199 }(90,·)) \;$$ at $$\; a,b =$$ e.g. 1,2
$$\displaystyle K(1,2,\chi_{199}(90,·)) = \sum_{r \in \Z/199\Z} \chi_{199}(90,r) e\left(\frac{1 r + 2 r^{-1}}{199}\right) = 13.3972020499+-18.8137378152i$$