Properties

Label 1815.193
Modulus $1815$
Conductor $605$
Order $220$
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(220))
 
M = H._module
 
chi = DirichletCharacter(H, M([0,165,138]))
 
pari: [g,chi] = znchar(Mod(193,1815))
 

Basic properties

Modulus: \(1815\)
Conductor: \(605\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(220\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: no, induced from \(\chi_{605}(193,\cdot)\)
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: yes
Parity: even
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 1815.bt

\(\chi_{1815}(7,\cdot)\) \(\chi_{1815}(13,\cdot)\) \(\chi_{1815}(28,\cdot)\) \(\chi_{1815}(52,\cdot)\) \(\chi_{1815}(73,\cdot)\) \(\chi_{1815}(127,\cdot)\) \(\chi_{1815}(172,\cdot)\) \(\chi_{1815}(178,\cdot)\) \(\chi_{1815}(193,\cdot)\) \(\chi_{1815}(217,\cdot)\) \(\chi_{1815}(238,\cdot)\) \(\chi_{1815}(277,\cdot)\) \(\chi_{1815}(283,\cdot)\) \(\chi_{1815}(292,\cdot)\) \(\chi_{1815}(337,\cdot)\) \(\chi_{1815}(343,\cdot)\) \(\chi_{1815}(358,\cdot)\) \(\chi_{1815}(382,\cdot)\) \(\chi_{1815}(442,\cdot)\) \(\chi_{1815}(448,\cdot)\) \(\chi_{1815}(502,\cdot)\) \(\chi_{1815}(508,\cdot)\) \(\chi_{1815}(523,\cdot)\) \(\chi_{1815}(547,\cdot)\) \(\chi_{1815}(568,\cdot)\) \(\chi_{1815}(607,\cdot)\) \(\chi_{1815}(613,\cdot)\) \(\chi_{1815}(622,\cdot)\) \(\chi_{1815}(667,\cdot)\) \(\chi_{1815}(673,\cdot)\) ...

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: $\Q(\zeta_{220})$
Fixed field: Number field defined by a degree 220 polynomial (not computed)

Values on generators

\((1211,727,1696)\) → \((1,-i,e\left(\frac{69}{110}\right))\)

First values

\(a\) \(-1\)\(1\)\(2\)\(4\)\(7\)\(8\)\(13\)\(14\)\(16\)\(17\)\(19\)\(23\)
\( \chi_{ 1815 }(193, a) \) \(1\)\(1\)\(e\left(\frac{83}{220}\right)\)\(e\left(\frac{83}{110}\right)\)\(e\left(\frac{31}{220}\right)\)\(e\left(\frac{29}{220}\right)\)\(e\left(\frac{133}{220}\right)\)\(e\left(\frac{57}{110}\right)\)\(e\left(\frac{28}{55}\right)\)\(e\left(\frac{107}{220}\right)\)\(e\left(\frac{31}{55}\right)\)\(e\left(\frac{7}{44}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 1815 }(193,a) \;\) at \(\;a = \) e.g. 2