Properties

Label 8640.257
Modulus $8640$
Conductor $135$
Order $36$
Real no
Primitive no
Minimal no
Parity even

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(8640, base_ring=CyclotomicField(36))
 
M = H._module
 
chi = DirichletCharacter(H, M([0,0,34,9]))
 
pari: [g,chi] = znchar(Mod(257,8640))
 

Basic properties

Modulus: \(8640\)
Conductor: \(135\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(36\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: no, induced from \(\chi_{135}(122,\cdot)\)
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: no
Parity: even
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 8640.gg

\(\chi_{8640}(257,\cdot)\) \(\chi_{8640}(833,\cdot)\) \(\chi_{8640}(1217,\cdot)\) \(\chi_{8640}(1793,\cdot)\) \(\chi_{8640}(3137,\cdot)\) \(\chi_{8640}(3713,\cdot)\) \(\chi_{8640}(4097,\cdot)\) \(\chi_{8640}(4673,\cdot)\) \(\chi_{8640}(6017,\cdot)\) \(\chi_{8640}(6593,\cdot)\) \(\chi_{8640}(6977,\cdot)\) \(\chi_{8640}(7553,\cdot)\)

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: \(\Q(\zeta_{36})\)
Fixed field: \(\Q(\zeta_{135})^+\)

Values on generators

\((2431,3781,6401,3457)\) → \((1,1,e\left(\frac{17}{18}\right),i)\)

First values

\(a\) \(-1\)\(1\)\(7\)\(11\)\(13\)\(17\)\(19\)\(23\)\(29\)\(31\)\(37\)\(41\)
\( \chi_{ 8640 }(257, a) \) \(1\)\(1\)\(e\left(\frac{13}{36}\right)\)\(e\left(\frac{5}{18}\right)\)\(e\left(\frac{11}{36}\right)\)\(e\left(\frac{5}{12}\right)\)\(e\left(\frac{5}{6}\right)\)\(e\left(\frac{5}{36}\right)\)\(e\left(\frac{4}{9}\right)\)\(e\left(\frac{8}{9}\right)\)\(e\left(\frac{11}{12}\right)\)\(e\left(\frac{1}{18}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 8640 }(257,a) \;\) at \(\;a = \) e.g. 2