from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(261, base_ring=CyclotomicField(28))
M = H._module
chi = DirichletCharacter(H, M([14,3]))
pari: [g,chi] = znchar(Mod(8,261))
Basic properties
Modulus: | \(261\) | |
Conductor: | \(87\) | sage: chi.conductor()
pari: znconreyconductor(g,chi)
|
Order: | \(28\) | sage: chi.multiplicative_order()
pari: charorder(g,chi)
|
Real: | no | |
Primitive: | no, induced from \(\chi_{87}(8,\cdot)\) | sage: chi.is_primitive()
pari: #znconreyconductor(g,chi)==1
|
Minimal: | no | |
Parity: | even | sage: chi.is_odd()
pari: zncharisodd(g,chi)
|
Galois orbit 261.r
\(\chi_{261}(8,\cdot)\) \(\chi_{261}(26,\cdot)\) \(\chi_{261}(44,\cdot)\) \(\chi_{261}(89,\cdot)\) \(\chi_{261}(98,\cdot)\) \(\chi_{261}(134,\cdot)\) \(\chi_{261}(143,\cdot)\) \(\chi_{261}(188,\cdot)\) \(\chi_{261}(206,\cdot)\) \(\chi_{261}(224,\cdot)\) \(\chi_{261}(242,\cdot)\) \(\chi_{261}(251,\cdot)\)
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: | \(\Q(\zeta_{28})\) |
Fixed field: | \(\Q(\zeta_{87})^+\) |
Values on generators
\((146,118)\) → \((-1,e\left(\frac{3}{28}\right))\)
First values
\(a\) | \(-1\) | \(1\) | \(2\) | \(4\) | \(5\) | \(7\) | \(8\) | \(10\) | \(11\) | \(13\) | \(14\) | \(16\) |
\( \chi_{ 261 }(8, a) \) | \(1\) | \(1\) | \(e\left(\frac{17}{28}\right)\) | \(e\left(\frac{3}{14}\right)\) | \(e\left(\frac{6}{7}\right)\) | \(e\left(\frac{2}{7}\right)\) | \(e\left(\frac{23}{28}\right)\) | \(e\left(\frac{13}{28}\right)\) | \(e\left(\frac{5}{28}\right)\) | \(e\left(\frac{13}{14}\right)\) | \(e\left(\frac{25}{28}\right)\) | \(e\left(\frac{3}{7}\right)\) |
sage: chi.jacobi_sum(n)
Gauss sum
sage: chi.gauss_sum(a)
pari: znchargauss(g,chi,a)
Jacobi sum
sage: chi.jacobi_sum(n)
Kloosterman sum
sage: chi.kloosterman_sum(a,b)