Properties

Label 2624.15
Modulus $2624$
Conductor $656$
Order $40$
Real no
Primitive no
Minimal no
Parity even

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(2624, base_ring=CyclotomicField(40))
 
M = H._module
 
chi = DirichletCharacter(H, M([20,10,37]))
 
pari: [g,chi] = znchar(Mod(15,2624))
 

Basic properties

Modulus: \(2624\)
Conductor: \(656\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(40\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: no, induced from \(\chi_{656}(507,\cdot)\)
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: no
Parity: even
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 2624.df

\(\chi_{2624}(15,\cdot)\) \(\chi_{2624}(111,\cdot)\) \(\chi_{2624}(175,\cdot)\) \(\chi_{2624}(239,\cdot)\) \(\chi_{2624}(527,\cdot)\) \(\chi_{2624}(591,\cdot)\) \(\chi_{2624}(719,\cdot)\) \(\chi_{2624}(751,\cdot)\) \(\chi_{2624}(1135,\cdot)\) \(\chi_{2624}(1167,\cdot)\) \(\chi_{2624}(1295,\cdot)\) \(\chi_{2624}(1359,\cdot)\) \(\chi_{2624}(1647,\cdot)\) \(\chi_{2624}(1711,\cdot)\) \(\chi_{2624}(1775,\cdot)\) \(\chi_{2624}(1871,\cdot)\)

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: 40.40.1027708468267178047292394722862044397918868556644399912781578154071083295594368567462835848740864.2

Values on generators

\((575,1477,129)\) → \((-1,i,e\left(\frac{37}{40}\right))\)

First values

\(a\) \(-1\)\(1\)\(3\)\(5\)\(7\)\(9\)\(11\)\(13\)\(15\)\(17\)\(19\)\(21\)
\( \chi_{ 2624 }(15, a) \) \(1\)\(1\)\(e\left(\frac{1}{8}\right)\)\(e\left(\frac{3}{5}\right)\)\(e\left(\frac{3}{40}\right)\)\(i\)\(e\left(\frac{21}{40}\right)\)\(e\left(\frac{17}{40}\right)\)\(e\left(\frac{29}{40}\right)\)\(e\left(\frac{21}{40}\right)\)\(e\left(\frac{23}{40}\right)\)\(e\left(\frac{1}{5}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 2624 }(15,a) \;\) at \(\;a = \) e.g. 2