Properties

Label 1280.43
Modulus $1280$
Conductor $1280$
Order $64$
Real no
Primitive yes
Minimal yes
Parity even

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(1280, base_ring=CyclotomicField(64))
 
M = H._module
 
chi = DirichletCharacter(H, M([32,61,48]))
 
pari: [g,chi] = znchar(Mod(43,1280))
 

Basic properties

Modulus: \(1280\)
Conductor: \(1280\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(64\)
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 1280.by

\(\chi_{1280}(43,\cdot)\) \(\chi_{1280}(67,\cdot)\) \(\chi_{1280}(123,\cdot)\) \(\chi_{1280}(147,\cdot)\) \(\chi_{1280}(203,\cdot)\) \(\chi_{1280}(227,\cdot)\) \(\chi_{1280}(283,\cdot)\) \(\chi_{1280}(307,\cdot)\) \(\chi_{1280}(363,\cdot)\) \(\chi_{1280}(387,\cdot)\) \(\chi_{1280}(443,\cdot)\) \(\chi_{1280}(467,\cdot)\) \(\chi_{1280}(523,\cdot)\) \(\chi_{1280}(547,\cdot)\) \(\chi_{1280}(603,\cdot)\) \(\chi_{1280}(627,\cdot)\) \(\chi_{1280}(683,\cdot)\) \(\chi_{1280}(707,\cdot)\) \(\chi_{1280}(763,\cdot)\) \(\chi_{1280}(787,\cdot)\) \(\chi_{1280}(843,\cdot)\) \(\chi_{1280}(867,\cdot)\) \(\chi_{1280}(923,\cdot)\) \(\chi_{1280}(947,\cdot)\) \(\chi_{1280}(1003,\cdot)\) \(\chi_{1280}(1027,\cdot)\) \(\chi_{1280}(1083,\cdot)\) \(\chi_{1280}(1107,\cdot)\) \(\chi_{1280}(1163,\cdot)\) \(\chi_{1280}(1187,\cdot)\) ...

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: $\Q(\zeta_{64})$
Fixed field: Number field defined by a degree 64 polynomial

Values on generators

\((511,261,257)\) → \((-1,e\left(\frac{61}{64}\right),-i)\)

First values

\(a\) \(-1\)\(1\)\(3\)\(7\)\(9\)\(11\)\(13\)\(17\)\(19\)\(21\)\(23\)\(27\)
\( \chi_{ 1280 }(43, a) \) \(1\)\(1\)\(e\left(\frac{7}{64}\right)\)\(e\left(\frac{25}{32}\right)\)\(e\left(\frac{7}{32}\right)\)\(e\left(\frac{33}{64}\right)\)\(e\left(\frac{3}{64}\right)\)\(e\left(\frac{7}{16}\right)\)\(e\left(\frac{59}{64}\right)\)\(e\left(\frac{57}{64}\right)\)\(e\left(\frac{3}{32}\right)\)\(e\left(\frac{21}{64}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 1280 }(43,a) \;\) at \(\;a = \) e.g. 2