Properties

Label 85.42
Modulus $85$
Conductor $85$
Order $8$
Real no
Primitive yes
Minimal yes
Parity odd

Related objects

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Show commands: Pari/GP / SageMath
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(85, base_ring=CyclotomicField(8)) M = H._module chi = DirichletCharacter(H, M([2,5]))
 
Copy content pari:[g,chi] = znchar(Mod(42,85))
 

Basic properties

Modulus: \(85\)
Conductor: \(85\)
Copy content sage:chi.conductor()
 
Copy content pari:znconreyconductor(g,chi)
 
Order: \(8\)
Copy content sage:chi.multiplicative_order()
 
Copy content pari:charorder(g,chi)
 
Real: no
Primitive: yes
Copy content sage:chi.is_primitive()
 
Copy content pari:#znconreyconductor(g,chi)==1
 
Minimal: yes
Parity: odd
Copy content sage:chi.is_odd()
 
Copy content pari:zncharisodd(g,chi)
 

Galois orbit 85.n

\(\chi_{85}(42,\cdot)\) \(\chi_{85}(53,\cdot)\) \(\chi_{85}(77,\cdot)\) \(\chi_{85}(83,\cdot)\)

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

Related number fields

Field of values: \(\Q(\zeta_{8})\)
Fixed field: 8.0.6411541765625.2

Values on generators

\((52,71)\) → \((i,e\left(\frac{5}{8}\right))\)

First values

\(a\) \(-1\)\(1\)\(2\)\(3\)\(4\)\(6\)\(7\)\(8\)\(9\)\(11\)\(12\)\(13\)
\( \chi_{ 85 }(42, a) \) \(-1\)\(1\)\(1\)\(e\left(\frac{3}{8}\right)\)\(1\)\(e\left(\frac{3}{8}\right)\)\(e\left(\frac{1}{8}\right)\)\(1\)\(-i\)\(e\left(\frac{3}{8}\right)\)\(e\left(\frac{3}{8}\right)\)\(i\)
Copy content sage:chi.jacobi_sum(n)
 
\( \chi_{ 85 }(42,a) \;\) at \(\;a = \) e.g. 2

Gauss sum

Copy content sage:chi.gauss_sum(a)
 
Copy content pari:znchargauss(g,chi,a)
 
\( \tau_{ a }( \chi_{ 85 }(42,·) )\;\) at \(\;a = \) e.g. 2

Jacobi sum

Copy content sage:chi.jacobi_sum(n)
 
\( J(\chi_{ 85 }(42,·),\chi_{ 85 }(n,·)) \;\) for \( \; n = \) e.g. 1

Kloosterman sum

Copy content sage:chi.kloosterman_sum(a,b)
 
\(K(a,b,\chi_{ 85 }(42,·)) \;\) at \(\; a,b = \) e.g. 1,2