Properties

Label 2805.1213
Modulus $2805$
Conductor $935$
Order $80$
Real no
Primitive no
Minimal yes
Parity even

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Show commands: PariGP / SageMath
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(2805, base_ring=CyclotomicField(80))
 
M = H._module
 
chi = DirichletCharacter(H, M([0,60,64,75]))
 
pari: [g,chi] = znchar(Mod(1213,2805))
 

Basic properties

Modulus: \(2805\)
Conductor: \(935\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(80\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: no, induced from \(\chi_{935}(278,\cdot)\)
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: yes
Parity: even
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 2805.fa

\(\chi_{2805}(37,\cdot)\) \(\chi_{2805}(58,\cdot)\) \(\chi_{2805}(82,\cdot)\) \(\chi_{2805}(97,\cdot)\) \(\chi_{2805}(163,\cdot)\) \(\chi_{2805}(313,\cdot)\) \(\chi_{2805}(532,\cdot)\) \(\chi_{2805}(592,\cdot)\) \(\chi_{2805}(823,\cdot)\) \(\chi_{2805}(862,\cdot)\) \(\chi_{2805}(928,\cdot)\) \(\chi_{2805}(1048,\cdot)\) \(\chi_{2805}(1213,\cdot)\) \(\chi_{2805}(1303,\cdot)\) \(\chi_{2805}(1312,\cdot)\) \(\chi_{2805}(1357,\cdot)\) \(\chi_{2805}(1468,\cdot)\) \(\chi_{2805}(1567,\cdot)\) \(\chi_{2805}(1588,\cdot)\) \(\chi_{2805}(1807,\cdot)\) \(\chi_{2805}(1813,\cdot)\) \(\chi_{2805}(1978,\cdot)\) \(\chi_{2805}(2062,\cdot)\) \(\chi_{2805}(2077,\cdot)\) \(\chi_{2805}(2137,\cdot)\) \(\chi_{2805}(2203,\cdot)\) \(\chi_{2805}(2392,\cdot)\) \(\chi_{2805}(2458,\cdot)\) \(\chi_{2805}(2572,\cdot)\) \(\chi_{2805}(2578,\cdot)\) ...

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: $\Q(\zeta_{80})$
Fixed field: Number field defined by a degree 80 polynomial

Values on generators

\((1871,562,1531,496)\) → \((1,-i,e\left(\frac{4}{5}\right),e\left(\frac{15}{16}\right))\)

First values

\(a\) \(-1\)\(1\)\(2\)\(4\)\(7\)\(8\)\(13\)\(14\)\(16\)\(19\)\(23\)\(26\)
\( \chi_{ 2805 }(1213, a) \) \(1\)\(1\)\(e\left(\frac{27}{40}\right)\)\(e\left(\frac{7}{20}\right)\)\(e\left(\frac{53}{80}\right)\)\(e\left(\frac{1}{40}\right)\)\(e\left(\frac{4}{5}\right)\)\(e\left(\frac{27}{80}\right)\)\(e\left(\frac{7}{10}\right)\)\(e\left(\frac{1}{40}\right)\)\(e\left(\frac{5}{16}\right)\)\(e\left(\frac{19}{40}\right)\)
sage: chi.jacobi_sum(n)
 
\( \chi_{ 2805 }(1213,a) \;\) at \(\;a = \) e.g. 2