# Properties

 Label 210.13 Modulus $210$ Conductor $35$ Order $4$ Real no Primitive no Minimal yes Parity even

# Related objects

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

sage: H = DirichletGroup(210)

sage: M = H._module

sage: chi = DirichletCharacter(H, M([0,3,2]))

pari: [g,chi] = znchar(Mod(13,210))

## Basic properties

 Modulus: $$210$$ Conductor: $$35$$ sage: chi.conductor()  pari: znconreyconductor(g,chi) Order: $$4$$ sage: chi.multiplicative_order()  pari: charorder(g,chi) Real: no Primitive: no, induced from $$\chi_{35}(13,\cdot)$$ sage: chi.is_primitive()  pari: #znconreyconductor(g,chi)==1 Minimal: yes Parity: even sage: chi.is_odd()  pari: zncharisodd(g,chi)

## Galois orbit 210.m

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

$$(71,127,31)$$ → $$(1,-i,-1)$$

## Values

 $$-1$$ $$1$$ $$11$$ $$13$$ $$17$$ $$19$$ $$23$$ $$29$$ $$31$$ $$37$$ $$41$$ $$43$$ $$1$$ $$1$$ $$1$$ $$-i$$ $$i$$ $$1$$ $$i$$ $$-1$$ $$-1$$ $$-i$$ $$-1$$ $$i$$
 value at e.g. 2

## Related number fields

 Field of values: $$\Q(\sqrt{-1})$$ Fixed field: 4.4.6125.1

## Gauss sum

sage: chi.gauss_sum(a)

pari: znchargauss(g,chi,a)

$$\tau_{ a }( \chi_{ 210 }(13,·) )\;$$ at $$\;a =$$ e.g. 2
$$\displaystyle \tau_{2}(\chi_{210}(13,\cdot)) = \sum_{r\in \Z/210\Z} \chi_{210}(13,r) e\left(\frac{r}{105}\right) = 5.0325180498+-3.1102672038i$$

## Jacobi sum

sage: chi.jacobi_sum(n)

$$J(\chi_{ 210 }(13,·),\chi_{ 210 }(n,·)) \;$$ for $$\; n =$$ e.g. 1
$$\displaystyle J(\chi_{210}(13,\cdot),\chi_{210}(1,\cdot)) = \sum_{r\in \Z/210\Z} \chi_{210}(13,r) \chi_{210}(1,1-r) = 0$$

## Kloosterman sum

sage: chi.kloosterman_sum(a,b)

$$K(a,b,\chi_{ 210 }(13,·)) \;$$ at $$\; a,b =$$ e.g. 1,2
$$\displaystyle K(1,2,\chi_{210}(13,·)) = \sum_{r \in \Z/210\Z} \chi_{210}(13,r) e\left(\frac{1 r + 2 r^{-1}}{210}\right) = 18.13656836+-18.13656836i$$