Properties

Label 2205.1963
Modulus $2205$
Conductor $245$
Order $84$
Real no
Primitive no
Minimal yes
Parity even

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(2205, base_ring=CyclotomicField(84))
 
M = H._module
 
chi = DirichletCharacter(H, M([0,63,2]))
 
pari: [g,chi] = znchar(Mod(1963,2205))
 

Basic properties

Modulus: \(2205\)
Conductor: \(245\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(84\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: no, induced from \(\chi_{245}(3,\cdot)\)
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: yes
Parity: even
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 2205.eh

\(\chi_{2205}(73,\cdot)\) \(\chi_{2205}(82,\cdot)\) \(\chi_{2205}(208,\cdot)\) \(\chi_{2205}(262,\cdot)\) \(\chi_{2205}(388,\cdot)\) \(\chi_{2205}(397,\cdot)\) \(\chi_{2205}(523,\cdot)\) \(\chi_{2205}(577,\cdot)\) \(\chi_{2205}(703,\cdot)\) \(\chi_{2205}(712,\cdot)\) \(\chi_{2205}(838,\cdot)\) \(\chi_{2205}(892,\cdot)\) \(\chi_{2205}(1018,\cdot)\) \(\chi_{2205}(1027,\cdot)\) \(\chi_{2205}(1153,\cdot)\) \(\chi_{2205}(1333,\cdot)\) \(\chi_{2205}(1468,\cdot)\) \(\chi_{2205}(1522,\cdot)\) \(\chi_{2205}(1657,\cdot)\) \(\chi_{2205}(1837,\cdot)\) \(\chi_{2205}(1963,\cdot)\) \(\chi_{2205}(1972,\cdot)\) \(\chi_{2205}(2098,\cdot)\) \(\chi_{2205}(2152,\cdot)\)

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: $\Q(\zeta_{84})$
Fixed field: Number field defined by a degree 84 polynomial

Values on generators

\((1226,442,1081)\) → \((1,-i,e\left(\frac{1}{42}\right))\)

First values

\(a\) \(-1\)\(1\)\(2\)\(4\)\(8\)\(11\)\(13\)\(16\)\(17\)\(19\)\(22\)\(23\)
\( \chi_{ 2205 }(1963, a) \) \(1\)\(1\)\(e\left(\frac{31}{84}\right)\)\(e\left(\frac{31}{42}\right)\)\(e\left(\frac{3}{28}\right)\)\(e\left(\frac{20}{21}\right)\)\(e\left(\frac{1}{28}\right)\)\(e\left(\frac{10}{21}\right)\)\(e\left(\frac{29}{84}\right)\)\(e\left(\frac{1}{3}\right)\)\(e\left(\frac{9}{28}\right)\)\(e\left(\frac{13}{84}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 2205 }(1963,a) \;\) at \(\;a = \) e.g. 2