Properties

Label 2025.19
Modulus $2025$
Conductor $675$
Order $90$
Real no
Primitive no
Minimal no
Parity even

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(2025, base_ring=CyclotomicField(90))
 
M = H._module
 
chi = DirichletCharacter(H, M([80,81]))
 
pari: [g,chi] = znchar(Mod(19,2025))
 

Basic properties

Modulus: \(2025\)
Conductor: \(675\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(90\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: no, induced from \(\chi_{675}(169,\cdot)\)
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: no
Parity: even
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 2025.bk

\(\chi_{2025}(19,\cdot)\) \(\chi_{2025}(64,\cdot)\) \(\chi_{2025}(154,\cdot)\) \(\chi_{2025}(289,\cdot)\) \(\chi_{2025}(334,\cdot)\) \(\chi_{2025}(469,\cdot)\) \(\chi_{2025}(559,\cdot)\) \(\chi_{2025}(604,\cdot)\) \(\chi_{2025}(694,\cdot)\) \(\chi_{2025}(739,\cdot)\) \(\chi_{2025}(829,\cdot)\) \(\chi_{2025}(964,\cdot)\) \(\chi_{2025}(1009,\cdot)\) \(\chi_{2025}(1144,\cdot)\) \(\chi_{2025}(1234,\cdot)\) \(\chi_{2025}(1279,\cdot)\) \(\chi_{2025}(1369,\cdot)\) \(\chi_{2025}(1414,\cdot)\) \(\chi_{2025}(1504,\cdot)\) \(\chi_{2025}(1639,\cdot)\) \(\chi_{2025}(1684,\cdot)\) \(\chi_{2025}(1819,\cdot)\) \(\chi_{2025}(1909,\cdot)\) \(\chi_{2025}(1954,\cdot)\)

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: $\Q(\zeta_{45})$
Fixed field: Number field defined by a degree 90 polynomial

Values on generators

\((326,1702)\) → \((e\left(\frac{8}{9}\right),e\left(\frac{9}{10}\right))\)

First values

\(a\) \(-1\)\(1\)\(2\)\(4\)\(7\)\(8\)\(11\)\(13\)\(14\)\(16\)\(17\)\(19\)
\( \chi_{ 2025 }(19, a) \) \(1\)\(1\)\(e\left(\frac{71}{90}\right)\)\(e\left(\frac{26}{45}\right)\)\(e\left(\frac{13}{18}\right)\)\(e\left(\frac{11}{30}\right)\)\(e\left(\frac{43}{45}\right)\)\(e\left(\frac{19}{90}\right)\)\(e\left(\frac{23}{45}\right)\)\(e\left(\frac{7}{45}\right)\)\(e\left(\frac{1}{30}\right)\)\(e\left(\frac{13}{15}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 2025 }(19,a) \;\) at \(\;a = \) e.g. 2