from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(3920, base_ring=CyclotomicField(42))
M = H._module
chi = DirichletCharacter(H, M([0,0,0,10]))
pari: [g,chi] = znchar(Mod(641,3920))
Basic properties
| Modulus: | \(3920\) | |
| 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 \(\chi_{49}(4,\cdot)\) | sage: chi.is_primitive()
pari: #znconreyconductor(g,chi)==1
|
| Minimal: | no | |
| Parity: | even | sage: chi.is_odd()
pari: zncharisodd(g,chi)
|
Galois orbit 3920.ds
\(\chi_{3920}(81,\cdot)\) \(\chi_{3920}(401,\cdot)\) \(\chi_{3920}(641,\cdot)\) \(\chi_{3920}(1201,\cdot)\) \(\chi_{3920}(1521,\cdot)\) \(\chi_{3920}(1761,\cdot)\) \(\chi_{3920}(2081,\cdot)\) \(\chi_{3920}(2641,\cdot)\) \(\chi_{3920}(2881,\cdot)\) \(\chi_{3920}(3201,\cdot)\) \(\chi_{3920}(3441,\cdot)\) \(\chi_{3920}(3761,\cdot)\)
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
\((1471,981,3137,3041)\) → \((1,1,1,e\left(\frac{5}{21}\right))\)
First values
| \(a\) | \(-1\) | \(1\) | \(3\) | \(9\) | \(11\) | \(13\) | \(17\) | \(19\) | \(23\) | \(27\) | \(29\) | \(31\) |
| \( \chi_{ 3920 }(641, a) \) | \(1\) | \(1\) | \(e\left(\frac{5}{21}\right)\) | \(e\left(\frac{10}{21}\right)\) | \(e\left(\frac{11}{21}\right)\) | \(e\left(\frac{6}{7}\right)\) | \(e\left(\frac{20}{21}\right)\) | \(e\left(\frac{1}{3}\right)\) | \(e\left(\frac{1}{21}\right)\) | \(e\left(\frac{5}{7}\right)\) | \(e\left(\frac{2}{7}\right)\) | \(e\left(\frac{2}{3}\right)\) |
sage: chi.jacobi_sum(n)