Properties

Conductor 400
Order 20
Real No
Primitive No
Parity Odd
Orbit Label 800.bn

Related objects

Learn more about

Show commands for: SageMath / Pari/GP
sage: from dirichlet_conrey import DirichletGroup_conrey # requires nonstandard Sage package to be installed
 
sage: H = DirichletGroup_conrey(800)
 
sage: chi = H[39]
 
pari: [g,chi] = znchar(Mod(39,800))
 

Basic properties

sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Conductor = 400
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Order = 20
Real = No
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1 \\ if not primitive returns [cond,factorization]
 
Primitive = No
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 
Parity = Odd
Orbit label = 800.bn
Orbit index = 40

Galois orbit

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

\(\chi_{800}(39,\cdot)\) \(\chi_{800}(119,\cdot)\) \(\chi_{800}(279,\cdot)\) \(\chi_{800}(359,\cdot)\) \(\chi_{800}(439,\cdot)\) \(\chi_{800}(519,\cdot)\) \(\chi_{800}(679,\cdot)\) \(\chi_{800}(759,\cdot)\)

Inducing primitive character

\(\chi_{400}(139,\cdot)\)

Values on generators

\((351,101,577)\) → \((-1,i,e\left(\frac{3}{10}\right))\)

Values

-1137911131719212327
\(-1\)\(1\)\(e\left(\frac{7}{20}\right)\)\(-1\)\(e\left(\frac{7}{10}\right)\)\(e\left(\frac{11}{20}\right)\)\(e\left(\frac{9}{20}\right)\)\(e\left(\frac{9}{10}\right)\)\(e\left(\frac{13}{20}\right)\)\(e\left(\frac{17}{20}\right)\)\(e\left(\frac{3}{10}\right)\)\(e\left(\frac{1}{20}\right)\)
value at  e.g. 2

Related number fields

Field of values \(\Q(\zeta_{20})\)

Gauss sum

sage: chi.sage_character().gauss_sum(a)
 
pari: znchargauss(g,chi,a)
 
\( \tau_{ a }( \chi_{ 800 }(39,·) )\;\) at \(\;a = \) e.g. 2
\(\displaystyle \tau_{2}(\chi_{800}(39,\cdot)) = \sum_{r\in \Z/800\Z} \chi_{800}(39,r) e\left(\frac{r}{400}\right) = -25.0097062534+31.2172162935i \)

Jacobi sum

sage: chi.sage_character().jacobi_sum(n)
 
\( J(\chi_{ 800 }(39,·),\chi_{ 800 }(n,·)) \;\) for \( \; n = \) e.g. 1
\( \displaystyle J(\chi_{800}(39,\cdot),\chi_{800}(1,\cdot)) = \sum_{r\in \Z/800\Z} \chi_{800}(39,r) \chi_{800}(1,1-r) = 0 \)

Kloosterman sum

sage: chi.sage_character().kloosterman_sum(a,b)
 
\(K(a,b,\chi_{ 800 }(39,·)) \;\) at \(\; a,b = \) e.g. 1,2
\( \displaystyle K(1,2,\chi_{800}(39,·)) = \sum_{r \in \Z/800\Z} \chi_{800}(39,r) e\left(\frac{1 r + 2 r^{-1}}{800}\right) = -0.0 \)