Properties

Label 2005.48
Modulus $2005$
Conductor $2005$
Order $80$
Real no
Primitive yes
Minimal yes
Parity even

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(2005, base_ring=CyclotomicField(80))
 
M = H._module
 
chi = DirichletCharacter(H, M([60,21]))
 
pari: [g,chi] = znchar(Mod(48,2005))
 

Basic properties

Modulus: \(2005\)
Conductor: \(2005\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(80\)
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 2005.bk

\(\chi_{2005}(48,\cdot)\) \(\chi_{2005}(142,\cdot)\) \(\chi_{2005}(148,\cdot)\) \(\chi_{2005}(153,\cdot)\) \(\chi_{2005}(157,\cdot)\) \(\chi_{2005}(158,\cdot)\) \(\chi_{2005}(243,\cdot)\) \(\chi_{2005}(248,\cdot)\) \(\chi_{2005}(253,\cdot)\) \(\chi_{2005}(317,\cdot)\) \(\chi_{2005}(353,\cdot)\) \(\chi_{2005}(477,\cdot)\) \(\chi_{2005}(613,\cdot)\) \(\chi_{2005}(647,\cdot)\) \(\chi_{2005}(683,\cdot)\) \(\chi_{2005}(828,\cdot)\) \(\chi_{2005}(957,\cdot)\) \(\chi_{2005}(973,\cdot)\) \(\chi_{2005}(1127,\cdot)\) \(\chi_{2005}(1287,\cdot)\) \(\chi_{2005}(1433,\cdot)\) \(\chi_{2005}(1447,\cdot)\) \(\chi_{2005}(1462,\cdot)\) \(\chi_{2005}(1578,\cdot)\) \(\chi_{2005}(1637,\cdot)\) \(\chi_{2005}(1672,\cdot)\) \(\chi_{2005}(1712,\cdot)\) \(\chi_{2005}(1723,\cdot)\) \(\chi_{2005}(1793,\cdot)\) \(\chi_{2005}(1897,\cdot)\) ...

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: $\Q(\zeta_{80})$
Fixed field: Number field defined by a degree 80 polynomial

Values on generators

\((402,1206)\) → \((-i,e\left(\frac{21}{80}\right))\)

First values

\(a\) \(-1\)\(1\)\(2\)\(3\)\(4\)\(6\)\(7\)\(8\)\(9\)\(11\)\(12\)\(13\)
\( \chi_{ 2005 }(48, a) \) \(1\)\(1\)\(e\left(\frac{23}{40}\right)\)\(e\left(\frac{41}{80}\right)\)\(e\left(\frac{3}{20}\right)\)\(e\left(\frac{7}{80}\right)\)\(e\left(\frac{1}{40}\right)\)\(e\left(\frac{29}{40}\right)\)\(e\left(\frac{1}{40}\right)\)\(e\left(\frac{37}{40}\right)\)\(e\left(\frac{53}{80}\right)\)\(e\left(\frac{79}{80}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 2005 }(48,a) \;\) at \(\;a = \) e.g. 2