Properties

Label 170.89
Modulus $170$
Conductor $85$
Order $4$
Real no
Primitive no
Minimal yes
Parity even

Related objects

Learn more about

Show commands for: Pari/GP / SageMath
sage: from sage.modular.dirichlet import DirichletCharacter
 
sage: H = DirichletGroup(170)
 
sage: M = H._module
 
sage: chi = DirichletCharacter(H, M([2,3]))
 
pari: [g,chi] = znchar(Mod(89,170))
 

Basic properties

Modulus: \(170\)
Conductor: \(85\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(4\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: no, induced from \(\chi_{85}(4,\cdot)\)
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: yes
Parity: even
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 170.g

\(\chi_{170}(89,\cdot)\) \(\chi_{170}(149,\cdot)\)

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

\((137,71)\) → \((-1,-i)\)

Values

\(-1\)\(1\)\(3\)\(7\)\(9\)\(11\)\(13\)\(19\)\(21\)\(23\)\(27\)\(29\)
\(1\)\(1\)\(i\)\(-i\)\(-1\)\(i\)\(-1\)\(-1\)\(1\)\(-i\)\(-i\)\(-i\)
value at e.g. 2

Related number fields

Field of values: \(\Q(\sqrt{-1}) \)
Fixed field: 4.4.122825.1

Gauss sum

sage: chi.gauss_sum(a)
 
pari: znchargauss(g,chi,a)
 
\( \tau_{ a }( \chi_{ 170 }(89,·) )\;\) at \(\;a = \) e.g. 2
\(\displaystyle \tau_{2}(\chi_{170}(89,\cdot)) = \sum_{r\in \Z/170\Z} \chi_{170}(89,r) e\left(\frac{r}{85}\right) = 7.2668950773+5.6738202241i \)

Jacobi sum

sage: chi.jacobi_sum(n)
 
\( J(\chi_{ 170 }(89,·),\chi_{ 170 }(n,·)) \;\) for \( \; n = \) e.g. 1
\( \displaystyle J(\chi_{170}(89,\cdot),\chi_{170}(1,\cdot)) = \sum_{r\in \Z/170\Z} \chi_{170}(89,r) \chi_{170}(1,1-r) = 0 \)

Kloosterman sum

sage: chi.kloosterman_sum(a,b)
 
\(K(a,b,\chi_{ 170 }(89,·)) \;\) at \(\; a,b = \) e.g. 1,2
\( \displaystyle K(1,2,\chi_{170}(89,·)) = \sum_{r \in \Z/170\Z} \chi_{170}(89,r) e\left(\frac{1 r + 2 r^{-1}}{170}\right) = 0.0 \)