Properties

Label 1815.784
Modulus $1815$
Conductor $605$
Order $110$
Real no
Primitive no
Minimal yes
Parity even

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(1815, base_ring=CyclotomicField(110))
 
M = H._module
 
chi = DirichletCharacter(H, M([0,55,18]))
 
pari: [g,chi] = znchar(Mod(784,1815))
 

Basic properties

Modulus: \(1815\)
Conductor: \(605\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(110\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: no, induced from \(\chi_{605}(179,\cdot)\)
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: yes
Parity: even
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 1815.bm

\(\chi_{1815}(4,\cdot)\) \(\chi_{1815}(49,\cdot)\) \(\chi_{1815}(64,\cdot)\) \(\chi_{1815}(169,\cdot)\) \(\chi_{1815}(214,\cdot)\) \(\chi_{1815}(229,\cdot)\) \(\chi_{1815}(289,\cdot)\) \(\chi_{1815}(334,\cdot)\) \(\chi_{1815}(379,\cdot)\) \(\chi_{1815}(394,\cdot)\) \(\chi_{1815}(454,\cdot)\) \(\chi_{1815}(499,\cdot)\) \(\chi_{1815}(544,\cdot)\) \(\chi_{1815}(559,\cdot)\) \(\chi_{1815}(619,\cdot)\) \(\chi_{1815}(664,\cdot)\) \(\chi_{1815}(709,\cdot)\) \(\chi_{1815}(724,\cdot)\) \(\chi_{1815}(784,\cdot)\) \(\chi_{1815}(829,\cdot)\) \(\chi_{1815}(889,\cdot)\) \(\chi_{1815}(949,\cdot)\) \(\chi_{1815}(994,\cdot)\) \(\chi_{1815}(1039,\cdot)\) \(\chi_{1815}(1054,\cdot)\) \(\chi_{1815}(1114,\cdot)\) \(\chi_{1815}(1159,\cdot)\) \(\chi_{1815}(1204,\cdot)\) \(\chi_{1815}(1279,\cdot)\) \(\chi_{1815}(1324,\cdot)\) ...

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: $\Q(\zeta_{55})$
Fixed field: Number field defined by a degree 110 polynomial (not computed)

Values on generators

\((1211,727,1696)\) → \((1,-1,e\left(\frac{9}{55}\right))\)

First values

\(a\) \(-1\)\(1\)\(2\)\(4\)\(7\)\(8\)\(13\)\(14\)\(16\)\(17\)\(19\)\(23\)
\( \chi_{ 1815 }(784, a) \) \(1\)\(1\)\(e\left(\frac{73}{110}\right)\)\(e\left(\frac{18}{55}\right)\)\(e\left(\frac{71}{110}\right)\)\(e\left(\frac{109}{110}\right)\)\(e\left(\frac{3}{110}\right)\)\(e\left(\frac{17}{55}\right)\)\(e\left(\frac{36}{55}\right)\)\(e\left(\frac{57}{110}\right)\)\(e\left(\frac{32}{55}\right)\)\(e\left(\frac{21}{22}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 1815 }(784,a) \;\) at \(\;a = \) e.g. 2