Properties

Label 1521.4
Modulus $1521$
Conductor $1521$
Order $78$
Real no
Primitive yes
Minimal yes
Parity even

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(1521, base_ring=CyclotomicField(78))
 
M = H._module
 
chi = DirichletCharacter(H, M([26,1]))
 
pari: [g,chi] = znchar(Mod(4,1521))
 

Basic properties

Modulus: \(1521\)
Conductor: \(1521\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(78\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: yes
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: yes
Parity: even
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 1521.by

\(\chi_{1521}(4,\cdot)\) \(\chi_{1521}(88,\cdot)\) \(\chi_{1521}(121,\cdot)\) \(\chi_{1521}(205,\cdot)\) \(\chi_{1521}(238,\cdot)\) \(\chi_{1521}(322,\cdot)\) \(\chi_{1521}(355,\cdot)\) \(\chi_{1521}(439,\cdot)\) \(\chi_{1521}(472,\cdot)\) \(\chi_{1521}(556,\cdot)\) \(\chi_{1521}(589,\cdot)\) \(\chi_{1521}(673,\cdot)\) \(\chi_{1521}(706,\cdot)\) \(\chi_{1521}(790,\cdot)\) \(\chi_{1521}(907,\cdot)\) \(\chi_{1521}(940,\cdot)\) \(\chi_{1521}(1024,\cdot)\) \(\chi_{1521}(1057,\cdot)\) \(\chi_{1521}(1141,\cdot)\) \(\chi_{1521}(1174,\cdot)\) \(\chi_{1521}(1258,\cdot)\) \(\chi_{1521}(1291,\cdot)\) \(\chi_{1521}(1408,\cdot)\) \(\chi_{1521}(1492,\cdot)\)

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: $\Q(\zeta_{39})$
Fixed field: Number field defined by a degree 78 polynomial

Values on generators

\((677,847)\) → \((e\left(\frac{1}{3}\right),e\left(\frac{1}{78}\right))\)

First values

\(a\) \(-1\)\(1\)\(2\)\(4\)\(5\)\(7\)\(8\)\(10\)\(11\)\(14\)\(16\)\(17\)
\( \chi_{ 1521 }(4, a) \) \(1\)\(1\)\(e\left(\frac{9}{26}\right)\)\(e\left(\frac{9}{13}\right)\)\(e\left(\frac{61}{78}\right)\)\(e\left(\frac{55}{78}\right)\)\(e\left(\frac{1}{26}\right)\)\(e\left(\frac{5}{39}\right)\)\(e\left(\frac{17}{26}\right)\)\(e\left(\frac{2}{39}\right)\)\(e\left(\frac{5}{13}\right)\)\(e\left(\frac{34}{39}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 1521 }(4,a) \;\) at \(\;a = \) e.g. 2