Properties

Label 1764.577
Modulus $1764$
Conductor $49$
Order $42$
Real no
Primitive no
Minimal yes
Parity odd

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(1764, base_ring=CyclotomicField(42))
 
M = H._module
 
chi = DirichletCharacter(H, M([0,0,19]))
 
pari: [g,chi] = znchar(Mod(577,1764))
 

Basic properties

Modulus: \(1764\)
Conductor: \(49\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(42\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: no, induced from \(\chi_{49}(38,\cdot)\)
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: yes
Parity: odd
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 1764.co

\(\chi_{1764}(73,\cdot)\) \(\chi_{1764}(145,\cdot)\) \(\chi_{1764}(397,\cdot)\) \(\chi_{1764}(577,\cdot)\) \(\chi_{1764}(649,\cdot)\) \(\chi_{1764}(829,\cdot)\) \(\chi_{1764}(1081,\cdot)\) \(\chi_{1764}(1153,\cdot)\) \(\chi_{1764}(1333,\cdot)\) \(\chi_{1764}(1405,\cdot)\) \(\chi_{1764}(1585,\cdot)\) \(\chi_{1764}(1657,\cdot)\)

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: Number field defined by a degree 42 polynomial

Values on generators

\((883,785,1081)\) → \((1,1,e\left(\frac{19}{42}\right))\)

First values

\(a\) \(-1\)\(1\)\(5\)\(11\)\(13\)\(17\)\(19\)\(23\)\(25\)\(29\)\(31\)\(37\)
\( \chi_{ 1764 }(577, a) \) \(-1\)\(1\)\(e\left(\frac{5}{42}\right)\)\(e\left(\frac{2}{21}\right)\)\(e\left(\frac{13}{14}\right)\)\(e\left(\frac{13}{42}\right)\)\(e\left(\frac{5}{6}\right)\)\(e\left(\frac{4}{21}\right)\)\(e\left(\frac{5}{21}\right)\)\(e\left(\frac{1}{7}\right)\)\(e\left(\frac{1}{6}\right)\)\(e\left(\frac{10}{21}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 1764 }(577,a) \;\) at \(\;a = \) e.g. 2