Properties

Label 820.279
Modulus $820$
Conductor $820$
Order $20$
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(820, base_ring=CyclotomicField(20)) M = H._module chi = DirichletCharacter(H, M([10,10,9]))
 
Copy content pari:[g,chi] = znchar(Mod(279,820))
 

Basic properties

Modulus: \(820\)
Conductor: \(820\)
Copy content sage:chi.conductor()
 
Copy content pari:znconreyconductor(g,chi)
 
Order: \(20\)
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 820.bp

\(\chi_{820}(39,\cdot)\) \(\chi_{820}(159,\cdot)\) \(\chi_{820}(279,\cdot)\) \(\chi_{820}(459,\cdot)\) \(\chi_{820}(579,\cdot)\) \(\chi_{820}(699,\cdot)\) \(\chi_{820}(759,\cdot)\) \(\chi_{820}(799,\cdot)\)

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: \(\Q(\zeta_{20})\)
Fixed field: 20.0.44998002377408544344171356675696640000000000.1

Values on generators

\((411,657,621)\) → \((-1,-1,e\left(\frac{9}{20}\right))\)

First values

\(a\) \(-1\)\(1\)\(3\)\(7\)\(9\)\(11\)\(13\)\(17\)\(19\)\(21\)\(23\)\(27\)
\( \chi_{ 820 }(279, a) \) \(-1\)\(1\)\(-i\)\(e\left(\frac{11}{20}\right)\)\(-1\)\(e\left(\frac{17}{20}\right)\)\(e\left(\frac{9}{20}\right)\)\(e\left(\frac{7}{20}\right)\)\(e\left(\frac{11}{20}\right)\)\(e\left(\frac{3}{10}\right)\)\(e\left(\frac{1}{5}\right)\)\(i\)
Copy content sage:chi.jacobi_sum(n)
 
\( \chi_{ 820 }(279,a) \;\) at \(\;a = \) e.g. 2

Gauss sum

Copy content sage:chi.gauss_sum(a)
 
Copy content pari:znchargauss(g,chi,a)
 
\( \tau_{ a }( \chi_{ 820 }(279,·) )\;\) at \(\;a = \) e.g. 2

Jacobi sum

Copy content sage:chi.jacobi_sum(n)
 
\( J(\chi_{ 820 }(279,·),\chi_{ 820 }(n,·)) \;\) for \( \; n = \) e.g. 1

Kloosterman sum

Copy content sage:chi.kloosterman_sum(a,b)
 
\(K(a,b,\chi_{ 820 }(279,·)) \;\) at \(\; a,b = \) e.g. 1,2