Properties

Label 1805.61
Modulus $1805$
Conductor $361$
Order $171$
Real no
Primitive no
Minimal yes
Parity even

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(1805, base_ring=CyclotomicField(342))
 
M = H._module
 
chi = DirichletCharacter(H, M([0,92]))
 
pari: [g,chi] = znchar(Mod(61,1805))
 

Basic properties

Modulus: \(1805\)
Conductor: \(361\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(171\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: no, induced from \(\chi_{361}(61,\cdot)\)
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: yes
Parity: even
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 1805.bc

\(\chi_{1805}(6,\cdot)\) \(\chi_{1805}(16,\cdot)\) \(\chi_{1805}(36,\cdot)\) \(\chi_{1805}(61,\cdot)\) \(\chi_{1805}(66,\cdot)\) \(\chi_{1805}(81,\cdot)\) \(\chi_{1805}(101,\cdot)\) \(\chi_{1805}(111,\cdot)\) \(\chi_{1805}(131,\cdot)\) \(\chi_{1805}(156,\cdot)\) \(\chi_{1805}(161,\cdot)\) \(\chi_{1805}(176,\cdot)\) \(\chi_{1805}(196,\cdot)\) \(\chi_{1805}(206,\cdot)\) \(\chi_{1805}(226,\cdot)\) \(\chi_{1805}(251,\cdot)\) \(\chi_{1805}(256,\cdot)\) \(\chi_{1805}(271,\cdot)\) \(\chi_{1805}(291,\cdot)\) \(\chi_{1805}(301,\cdot)\) \(\chi_{1805}(321,\cdot)\) \(\chi_{1805}(346,\cdot)\) \(\chi_{1805}(351,\cdot)\) \(\chi_{1805}(366,\cdot)\) \(\chi_{1805}(386,\cdot)\) \(\chi_{1805}(396,\cdot)\) \(\chi_{1805}(416,\cdot)\) \(\chi_{1805}(441,\cdot)\) \(\chi_{1805}(446,\cdot)\) \(\chi_{1805}(461,\cdot)\) ...

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: $\Q(\zeta_{171})$
Fixed field: Number field defined by a degree 171 polynomial (not computed)

Values on generators

\((362,1446)\) → \((1,e\left(\frac{46}{171}\right))\)

First values

\(a\) \(-1\)\(1\)\(2\)\(3\)\(4\)\(6\)\(7\)\(8\)\(9\)\(11\)\(12\)\(13\)
\( \chi_{ 1805 }(61, a) \) \(1\)\(1\)\(e\left(\frac{46}{171}\right)\)\(e\left(\frac{67}{171}\right)\)\(e\left(\frac{92}{171}\right)\)\(e\left(\frac{113}{171}\right)\)\(e\left(\frac{20}{57}\right)\)\(e\left(\frac{46}{57}\right)\)\(e\left(\frac{134}{171}\right)\)\(e\left(\frac{25}{57}\right)\)\(e\left(\frac{53}{57}\right)\)\(e\left(\frac{86}{171}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 1805 }(61,a) \;\) at \(\;a = \) e.g. 2