Properties

Label 1911.23
Modulus $1911$
Conductor $1911$
Order $42$
Real no
Primitive yes
Minimal yes
Parity odd

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(1911, base_ring=CyclotomicField(42))
 
M = H._module
 
chi = DirichletCharacter(H, M([21,38,35]))
 
pari: [g,chi] = znchar(Mod(23,1911))
 

Basic properties

Modulus: \(1911\)
Conductor: \(1911\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(42\)
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 1911.da

\(\chi_{1911}(23,\cdot)\) \(\chi_{1911}(95,\cdot)\) \(\chi_{1911}(296,\cdot)\) \(\chi_{1911}(368,\cdot)\) \(\chi_{1911}(641,\cdot)\) \(\chi_{1911}(842,\cdot)\) \(\chi_{1911}(914,\cdot)\) \(\chi_{1911}(1115,\cdot)\) \(\chi_{1911}(1187,\cdot)\) \(\chi_{1911}(1388,\cdot)\) \(\chi_{1911}(1460,\cdot)\) \(\chi_{1911}(1661,\cdot)\)

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: \(\Q(\zeta_{21})\)
Fixed field: 42.0.171796661872303139426286971553175729564906991908179786155620948893904232254867038476961967376575716647979404317071.2

Values on generators

\((638,1522,1471)\) → \((-1,e\left(\frac{19}{21}\right),e\left(\frac{5}{6}\right))\)

First values

\(a\) \(-1\)\(1\)\(2\)\(4\)\(5\)\(8\)\(10\)\(11\)\(16\)\(17\)\(19\)\(20\)
\( \chi_{ 1911 }(23, a) \) \(-1\)\(1\)\(e\left(\frac{6}{7}\right)\)\(e\left(\frac{5}{7}\right)\)\(e\left(\frac{5}{21}\right)\)\(e\left(\frac{4}{7}\right)\)\(e\left(\frac{2}{21}\right)\)\(e\left(\frac{11}{21}\right)\)\(e\left(\frac{3}{7}\right)\)\(e\left(\frac{11}{14}\right)\)\(e\left(\frac{5}{6}\right)\)\(e\left(\frac{20}{21}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 1911 }(23,a) \;\) at \(\;a = \) e.g. 2