Properties

Label 1620.49
Modulus $1620$
Conductor $405$
Order $54$
Real no
Primitive no
Minimal yes
Parity even

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(1620, base_ring=CyclotomicField(54))
 
M = H._module
 
chi = DirichletCharacter(H, M([0,32,27]))
 
pari: [g,chi] = znchar(Mod(49,1620))
 

Basic properties

Modulus: \(1620\)
Conductor: \(405\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(54\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: no, induced from \(\chi_{405}(49,\cdot)\)
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: yes
Parity: even
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 1620.br

\(\chi_{1620}(49,\cdot)\) \(\chi_{1620}(169,\cdot)\) \(\chi_{1620}(229,\cdot)\) \(\chi_{1620}(349,\cdot)\) \(\chi_{1620}(409,\cdot)\) \(\chi_{1620}(529,\cdot)\) \(\chi_{1620}(589,\cdot)\) \(\chi_{1620}(709,\cdot)\) \(\chi_{1620}(769,\cdot)\) \(\chi_{1620}(889,\cdot)\) \(\chi_{1620}(949,\cdot)\) \(\chi_{1620}(1069,\cdot)\) \(\chi_{1620}(1129,\cdot)\) \(\chi_{1620}(1249,\cdot)\) \(\chi_{1620}(1309,\cdot)\) \(\chi_{1620}(1429,\cdot)\) \(\chi_{1620}(1489,\cdot)\) \(\chi_{1620}(1609,\cdot)\)

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: \(\Q(\zeta_{27})\)
Fixed field: Number field defined by a degree 54 polynomial

Values on generators

\((811,1541,1297)\) → \((1,e\left(\frac{16}{27}\right),-1)\)

First values

\(a\) \(-1\)\(1\)\(7\)\(11\)\(13\)\(17\)\(19\)\(23\)\(29\)\(31\)\(37\)\(41\)
\( \chi_{ 1620 }(49, a) \) \(1\)\(1\)\(e\left(\frac{53}{54}\right)\)\(e\left(\frac{19}{27}\right)\)\(e\left(\frac{13}{54}\right)\)\(e\left(\frac{1}{18}\right)\)\(e\left(\frac{4}{9}\right)\)\(e\left(\frac{1}{54}\right)\)\(e\left(\frac{25}{27}\right)\)\(e\left(\frac{23}{27}\right)\)\(e\left(\frac{7}{18}\right)\)\(e\left(\frac{11}{27}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 1620 }(49,a) \;\) at \(\;a = \) e.g. 2