Properties

Label 421.90
Modulus $421$
Conductor $421$
Order $420$
Real no
Primitive yes
Minimal yes
Parity odd

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(421, base_ring=CyclotomicField(420))
 
M = H._module
 
chi = DirichletCharacter(H, M([247]))
 
pari: [g,chi] = znchar(Mod(90,421))
 

Basic properties

Modulus: \(421\)
Conductor: \(421\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(420\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: yes
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: yes
Parity: odd
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 421.x

\(\chi_{421}(2,\cdot)\) \(\chi_{421}(14,\cdot)\) \(\chi_{421}(18,\cdot)\) \(\chi_{421}(22,\cdot)\) \(\chi_{421}(23,\cdot)\) \(\chi_{421}(24,\cdot)\) \(\chi_{421}(30,\cdot)\) \(\chi_{421}(39,\cdot)\) \(\chi_{421}(40,\cdot)\) \(\chi_{421}(41,\cdot)\) \(\chi_{421}(43,\cdot)\) \(\chi_{421}(50,\cdot)\) \(\chi_{421}(53,\cdot)\) \(\chi_{421}(54,\cdot)\) \(\chi_{421}(57,\cdot)\) \(\chi_{421}(65,\cdot)\) \(\chi_{421}(66,\cdot)\) \(\chi_{421}(71,\cdot)\) \(\chi_{421}(72,\cdot)\) \(\chi_{421}(76,\cdot)\) \(\chi_{421}(83,\cdot)\) \(\chi_{421}(87,\cdot)\) \(\chi_{421}(88,\cdot)\) \(\chi_{421}(90,\cdot)\) \(\chi_{421}(96,\cdot)\) \(\chi_{421}(98,\cdot)\) \(\chi_{421}(102,\cdot)\) \(\chi_{421}(116,\cdot)\) \(\chi_{421}(117,\cdot)\) \(\chi_{421}(134,\cdot)\) ...

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

Related number fields

Field of values: $\Q(\zeta_{420})$
Fixed field: Number field defined by a degree 420 polynomial (not computed)

Values on generators

\(2\) → \(e\left(\frac{247}{420}\right)\)

First values

\(a\) \(-1\)\(1\)\(2\)\(3\)\(4\)\(5\)\(6\)\(7\)\(8\)\(9\)\(10\)\(11\)
\( \chi_{ 421 }(90, a) \) \(-1\)\(1\)\(e\left(\frac{247}{420}\right)\)\(e\left(\frac{62}{105}\right)\)\(e\left(\frac{37}{210}\right)\)\(e\left(\frac{103}{210}\right)\)\(e\left(\frac{5}{28}\right)\)\(e\left(\frac{17}{70}\right)\)\(e\left(\frac{107}{140}\right)\)\(e\left(\frac{19}{105}\right)\)\(e\left(\frac{11}{140}\right)\)\(e\left(\frac{13}{105}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 421 }(90,a) \;\) at \(\;a = \) e.g. 2

Gauss sum

sage: chi.gauss_sum(a)
 
pari: znchargauss(g,chi,a)
 
\( \tau_{ a }( \chi_{ 421 }(90,·) )\;\) at \(\;a = \) e.g. 2

Jacobi sum

sage: chi.jacobi_sum(n)
 
\( J(\chi_{ 421 }(90,·),\chi_{ 421 }(n,·)) \;\) for \( \; n = \) e.g. 1

Kloosterman sum

sage: chi.kloosterman_sum(a,b)
 
\(K(a,b,\chi_{ 421 }(90,·)) \;\) at \(\; a,b = \) e.g. 1,2