from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(2220, base_ring=CyclotomicField(12))
M = H._module
chi = DirichletCharacter(H, M([6,0,3,4]))
pari: [g,chi] = znchar(Mod(1987,2220))
Basic properties
| Modulus: | \(2220\) | |
| Conductor: | \(740\) | sage: chi.conductor()
pari: znconreyconductor(g,chi)
|
| Order: | \(12\) | sage: chi.multiplicative_order()
pari: charorder(g,chi)
|
| Real: | no | |
| Primitive: | no, induced from \(\chi_{740}(507,\cdot)\) | sage: chi.is_primitive()
pari: #znconreyconductor(g,chi)==1
|
| Minimal: | yes | |
| Parity: | even | sage: chi.is_odd()
pari: zncharisodd(g,chi)
|
Galois orbit 2220.cl
\(\chi_{2220}(343,\cdot)\) \(\chi_{2220}(787,\cdot)\) \(\chi_{2220}(1543,\cdot)\) \(\chi_{2220}(1987,\cdot)\)
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: | \(\Q(\zeta_{12})\) |
| Fixed field: | 12.12.28099835631368000000000.1 |
Values on generators
\((1111,1481,1777,1741)\) → \((-1,1,i,e\left(\frac{1}{3}\right))\)
First values
| \(a\) | \(-1\) | \(1\) | \(7\) | \(11\) | \(13\) | \(17\) | \(19\) | \(23\) | \(29\) | \(31\) | \(41\) | \(43\) |
| \( \chi_{ 2220 }(1987, a) \) | \(1\) | \(1\) | \(e\left(\frac{5}{12}\right)\) | \(-1\) | \(e\left(\frac{5}{12}\right)\) | \(e\left(\frac{7}{12}\right)\) | \(e\left(\frac{2}{3}\right)\) | \(i\) | \(-1\) | \(-1\) | \(e\left(\frac{2}{3}\right)\) | \(i\) |
sage: chi.jacobi_sum(n)