Properties

Label 6840.17
Modulus $6840$
Conductor $285$
Order $36$
Real no
Primitive no
Minimal yes
Parity even

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(6840, base_ring=CyclotomicField(36))
 
M = H._module
 
chi = DirichletCharacter(H, M([0,0,18,9,20]))
 
pari: [g,chi] = znchar(Mod(17,6840))
 

Basic properties

Modulus: \(6840\)
Conductor: \(285\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(36\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: no, induced from \(\chi_{285}(17,\cdot)\)
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: yes
Parity: even
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 6840.oa

\(\chi_{6840}(17,\cdot)\) \(\chi_{6840}(233,\cdot)\) \(\chi_{6840}(377,\cdot)\) \(\chi_{6840}(593,\cdot)\) \(\chi_{6840}(2753,\cdot)\) \(\chi_{6840}(2897,\cdot)\) \(\chi_{6840}(3113,\cdot)\) \(\chi_{6840}(3977,\cdot)\) \(\chi_{6840}(4337,\cdot)\) \(\chi_{6840}(4697,\cdot)\) \(\chi_{6840}(5633,\cdot)\) \(\chi_{6840}(6713,\cdot)\)

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: Number field defined by a degree 36 polynomial

Values on generators

\((1711,3421,5321,2737,6481)\) → \((1,1,-1,i,e\left(\frac{5}{9}\right))\)

First values

\(a\) \(-1\)\(1\)\(7\)\(11\)\(13\)\(17\)\(23\)\(29\)\(31\)\(37\)\(41\)\(43\)
\( \chi_{ 6840 }(17, a) \) \(1\)\(1\)\(e\left(\frac{7}{12}\right)\)\(e\left(\frac{1}{6}\right)\)\(e\left(\frac{19}{36}\right)\)\(e\left(\frac{11}{36}\right)\)\(e\left(\frac{13}{36}\right)\)\(e\left(\frac{4}{9}\right)\)\(e\left(\frac{1}{3}\right)\)\(i\)\(e\left(\frac{13}{18}\right)\)\(e\left(\frac{23}{36}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 6840 }(17,a) \;\) at \(\;a = \) e.g. 2