Properties

Label 1312.63
Modulus $1312$
Conductor $164$
Order $40$
Real no
Primitive no
Minimal yes
Parity even

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(1312, base_ring=CyclotomicField(40))
 
M = H._module
 
chi = DirichletCharacter(H, M([20,0,29]))
 
pari: [g,chi] = znchar(Mod(63,1312))
 

Basic properties

Modulus: \(1312\)
Conductor: \(164\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(40\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: no, induced from \(\chi_{164}(63,\cdot)\)
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: yes
Parity: even
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 1312.cy

\(\chi_{1312}(63,\cdot)\) \(\chi_{1312}(95,\cdot)\) \(\chi_{1312}(479,\cdot)\) \(\chi_{1312}(511,\cdot)\) \(\chi_{1312}(639,\cdot)\) \(\chi_{1312}(671,\cdot)\) \(\chi_{1312}(703,\cdot)\) \(\chi_{1312}(767,\cdot)\) \(\chi_{1312}(831,\cdot)\) \(\chi_{1312}(895,\cdot)\) \(\chi_{1312}(991,\cdot)\) \(\chi_{1312}(1055,\cdot)\) \(\chi_{1312}(1119,\cdot)\) \(\chi_{1312}(1183,\cdot)\) \(\chi_{1312}(1215,\cdot)\) \(\chi_{1312}(1247,\cdot)\)

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: \(\Q(\zeta_{40})\)
Fixed field: \(\Q(\zeta_{164})^+\)

Values on generators

\((575,165,129)\) → \((-1,1,e\left(\frac{29}{40}\right))\)

First values

\(a\) \(-1\)\(1\)\(3\)\(5\)\(7\)\(9\)\(11\)\(13\)\(15\)\(17\)\(19\)\(21\)
\( \chi_{ 1312 }(63, a) \) \(1\)\(1\)\(e\left(\frac{3}{8}\right)\)\(e\left(\frac{19}{20}\right)\)\(e\left(\frac{31}{40}\right)\)\(-i\)\(e\left(\frac{27}{40}\right)\)\(e\left(\frac{19}{40}\right)\)\(e\left(\frac{13}{40}\right)\)\(e\left(\frac{37}{40}\right)\)\(e\left(\frac{1}{40}\right)\)\(e\left(\frac{3}{20}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 1312 }(63,a) \;\) at \(\;a = \) e.g. 2