from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(1666, base_ring=CyclotomicField(42))
M = H._module
chi = DirichletCharacter(H, M([40,0]))
pari: [g,chi] = znchar(Mod(1089,1666))
Basic properties
Modulus: | \(1666\) | |
Conductor: | \(49\) | sage: chi.conductor()
pari: znconreyconductor(g,chi)
|
Order: | \(21\) | sage: chi.multiplicative_order()
pari: charorder(g,chi)
|
Real: | no | |
Primitive: | no, induced from \(\chi_{49}(11,\cdot)\) | sage: chi.is_primitive()
pari: #znconreyconductor(g,chi)==1
|
Minimal: | yes | |
Parity: | even | sage: chi.is_odd()
pari: zncharisodd(g,chi)
|
Galois orbit 1666.u
\(\chi_{1666}(137,\cdot)\) \(\chi_{1666}(205,\cdot)\) \(\chi_{1666}(375,\cdot)\) \(\chi_{1666}(443,\cdot)\) \(\chi_{1666}(613,\cdot)\) \(\chi_{1666}(681,\cdot)\) \(\chi_{1666}(919,\cdot)\) \(\chi_{1666}(1089,\cdot)\) \(\chi_{1666}(1327,\cdot)\) \(\chi_{1666}(1395,\cdot)\) \(\chi_{1666}(1565,\cdot)\) \(\chi_{1666}(1633,\cdot)\)
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: | \(\Q(\zeta_{21})\) |
Fixed field: | Number field defined by a degree 21 polynomial |
Values on generators
\((885,785)\) → \((e\left(\frac{20}{21}\right),1)\)
First values
\(a\) | \(-1\) | \(1\) | \(3\) | \(5\) | \(9\) | \(11\) | \(13\) | \(15\) | \(19\) | \(23\) | \(25\) | \(27\) |
\( \chi_{ 1666 }(1089, a) \) | \(1\) | \(1\) | \(e\left(\frac{20}{21}\right)\) | \(e\left(\frac{13}{21}\right)\) | \(e\left(\frac{19}{21}\right)\) | \(e\left(\frac{2}{21}\right)\) | \(e\left(\frac{3}{7}\right)\) | \(e\left(\frac{4}{7}\right)\) | \(e\left(\frac{1}{3}\right)\) | \(e\left(\frac{4}{21}\right)\) | \(e\left(\frac{5}{21}\right)\) | \(e\left(\frac{6}{7}\right)\) |
sage: chi.jacobi_sum(n)