Properties

Label 1280.3
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([32,35,48]))
 
pari: [g,chi] = znchar(Mod(3,1280))
 

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.bt

\(\chi_{1280}(3,\cdot)\) \(\chi_{1280}(27,\cdot)\) \(\chi_{1280}(83,\cdot)\) \(\chi_{1280}(107,\cdot)\) \(\chi_{1280}(163,\cdot)\) \(\chi_{1280}(187,\cdot)\) \(\chi_{1280}(243,\cdot)\) \(\chi_{1280}(267,\cdot)\) \(\chi_{1280}(323,\cdot)\) \(\chi_{1280}(347,\cdot)\) \(\chi_{1280}(403,\cdot)\) \(\chi_{1280}(427,\cdot)\) \(\chi_{1280}(483,\cdot)\) \(\chi_{1280}(507,\cdot)\) \(\chi_{1280}(563,\cdot)\) \(\chi_{1280}(587,\cdot)\) \(\chi_{1280}(643,\cdot)\) \(\chi_{1280}(667,\cdot)\) \(\chi_{1280}(723,\cdot)\) \(\chi_{1280}(747,\cdot)\) \(\chi_{1280}(803,\cdot)\) \(\chi_{1280}(827,\cdot)\) \(\chi_{1280}(883,\cdot)\) \(\chi_{1280}(907,\cdot)\) \(\chi_{1280}(963,\cdot)\) \(\chi_{1280}(987,\cdot)\) \(\chi_{1280}(1043,\cdot)\) \(\chi_{1280}(1067,\cdot)\) \(\chi_{1280}(1123,\cdot)\) \(\chi_{1280}(1147,\cdot)\) ...

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

\((511,261,257)\) → \((-1,e\left(\frac{35}{64}\right),-i)\)

First values

\(a\) \(-1\)\(1\)\(3\)\(7\)\(9\)\(11\)\(13\)\(17\)\(19\)\(21\)\(23\)\(27\)
\( \chi_{ 1280 }(3, a) \) \(1\)\(1\)\(e\left(\frac{57}{64}\right)\)\(e\left(\frac{23}{32}\right)\)\(e\left(\frac{25}{32}\right)\)\(e\left(\frac{63}{64}\right)\)\(e\left(\frac{61}{64}\right)\)\(e\left(\frac{1}{16}\right)\)\(e\left(\frac{37}{64}\right)\)\(e\left(\frac{39}{64}\right)\)\(e\left(\frac{13}{32}\right)\)\(e\left(\frac{43}{64}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 1280 }(3,a) \;\) at \(\;a = \) e.g. 2