from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(2646, base_ring=CyclotomicField(42))
M = H._module
chi = DirichletCharacter(H, M([28,18]))
pari: [g,chi] = znchar(Mod(127,2646))
Basic properties
Modulus: | \(2646\) | |
Conductor: | \(441\) | sage: chi.conductor()
pari: znconreyconductor(g,chi)
|
Order: | \(21\) | sage: chi.multiplicative_order()
pari: charorder(g,chi)
|
Real: | no | |
Primitive: | no, induced from \(\chi_{441}(421,\cdot)\) | sage: chi.is_primitive()
pari: #znconreyconductor(g,chi)==1
|
Minimal: | no | |
Parity: | even | sage: chi.is_odd()
pari: zncharisodd(g,chi)
|
Galois orbit 2646.bm
\(\chi_{2646}(127,\cdot)\) \(\chi_{2646}(253,\cdot)\) \(\chi_{2646}(505,\cdot)\) \(\chi_{2646}(631,\cdot)\) \(\chi_{2646}(1009,\cdot)\) \(\chi_{2646}(1261,\cdot)\) \(\chi_{2646}(1387,\cdot)\) \(\chi_{2646}(1639,\cdot)\) \(\chi_{2646}(2017,\cdot)\) \(\chi_{2646}(2143,\cdot)\) \(\chi_{2646}(2395,\cdot)\) \(\chi_{2646}(2521,\cdot)\)
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
\((785,1081)\) → \((e\left(\frac{2}{3}\right),e\left(\frac{3}{7}\right))\)
First values
\(a\) | \(-1\) | \(1\) | \(5\) | \(11\) | \(13\) | \(17\) | \(19\) | \(23\) | \(25\) | \(29\) | \(31\) | \(37\) |
\( \chi_{ 2646 }(127, a) \) | \(1\) | \(1\) | \(e\left(\frac{16}{21}\right)\) | \(e\left(\frac{17}{21}\right)\) | \(e\left(\frac{10}{21}\right)\) | \(e\left(\frac{5}{7}\right)\) | \(1\) | \(e\left(\frac{13}{21}\right)\) | \(e\left(\frac{11}{21}\right)\) | \(e\left(\frac{8}{21}\right)\) | \(e\left(\frac{1}{3}\right)\) | \(e\left(\frac{5}{7}\right)\) |
sage: chi.jacobi_sum(n)