Properties

Label 8020.287
Modulus $8020$
Conductor $8020$
Order $40$
Real no
Primitive yes
Minimal yes
Parity even

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(8020, base_ring=CyclotomicField(40))
 
M = H._module
 
chi = DirichletCharacter(H, M([20,10,39]))
 
pari: [g,chi] = znchar(Mod(287,8020))
 

Basic properties

Modulus: \(8020\)
Conductor: \(8020\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(40\)
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 8020.cg

\(\chi_{8020}(287,\cdot)\) \(\chi_{8020}(503,\cdot)\) \(\chi_{8020}(767,\cdot)\) \(\chi_{8020}(1903,\cdot)\) \(\chi_{8020}(2167,\cdot)\) \(\chi_{8020}(3447,\cdot)\) \(\chi_{8020}(3483,\cdot)\) \(\chi_{8020}(4443,\cdot)\) \(\chi_{8020}(4847,\cdot)\) \(\chi_{8020}(4963,\cdot)\) \(\chi_{8020}(5327,\cdot)\) \(\chi_{8020}(5463,\cdot)\) \(\chi_{8020}(5827,\cdot)\) \(\chi_{8020}(5983,\cdot)\) \(\chi_{8020}(6943,\cdot)\) \(\chi_{8020}(7807,\cdot)\)

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: Number field defined by a degree 40 polynomial

Values on generators

\((4011,6417,7221)\) → \((-1,i,e\left(\frac{39}{40}\right))\)

First values

\(a\) \(-1\)\(1\)\(3\)\(7\)\(9\)\(11\)\(13\)\(17\)\(19\)\(21\)\(23\)\(27\)
\( \chi_{ 8020 }(287, a) \) \(1\)\(1\)\(e\left(\frac{9}{40}\right)\)\(e\left(\frac{1}{5}\right)\)\(e\left(\frac{9}{20}\right)\)\(e\left(\frac{13}{20}\right)\)\(e\left(\frac{31}{40}\right)\)\(e\left(\frac{27}{40}\right)\)\(e\left(\frac{37}{40}\right)\)\(e\left(\frac{17}{40}\right)\)\(e\left(\frac{39}{40}\right)\)\(e\left(\frac{27}{40}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 8020 }(287,a) \;\) at \(\;a = \) e.g. 2