from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(2790, base_ring=CyclotomicField(30))
M = H._module
chi = DirichletCharacter(H, M([0,15,4]))
pari: [g,chi] = znchar(Mod(19,2790))
Basic properties
Modulus: | \(2790\) | |
Conductor: | \(155\) | sage: chi.conductor()
pari: znconreyconductor(g,chi)
|
Order: | \(30\) | sage: chi.multiplicative_order()
pari: charorder(g,chi)
|
Real: | no | |
Primitive: | no, induced from \(\chi_{155}(19,\cdot)\) | sage: chi.is_primitive()
pari: #znconreyconductor(g,chi)==1
|
Minimal: | yes | |
Parity: | even | sage: chi.is_odd()
pari: zncharisodd(g,chi)
|
Galois orbit 2790.dh
\(\chi_{2790}(19,\cdot)\) \(\chi_{2790}(289,\cdot)\) \(\chi_{2790}(379,\cdot)\) \(\chi_{2790}(919,\cdot)\) \(\chi_{2790}(1099,\cdot)\) \(\chi_{2790}(1909,\cdot)\) \(\chi_{2790}(2179,\cdot)\) \(\chi_{2790}(2539,\cdot)\)
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: | \(\Q(\zeta_{15})\) |
Fixed field: | 30.30.17485477327500765872904889567178150559785186767578125.1 |
Values on generators
\((2171,1117,1801)\) → \((1,-1,e\left(\frac{2}{15}\right))\)
First values
\(a\) | \(-1\) | \(1\) | \(7\) | \(11\) | \(13\) | \(17\) | \(19\) | \(23\) | \(29\) | \(37\) | \(41\) | \(43\) |
\( \chi_{ 2790 }(19, a) \) | \(1\) | \(1\) | \(e\left(\frac{7}{30}\right)\) | \(e\left(\frac{1}{15}\right)\) | \(e\left(\frac{29}{30}\right)\) | \(e\left(\frac{13}{30}\right)\) | \(e\left(\frac{8}{15}\right)\) | \(e\left(\frac{1}{10}\right)\) | \(e\left(\frac{1}{5}\right)\) | \(e\left(\frac{5}{6}\right)\) | \(e\left(\frac{13}{15}\right)\) | \(e\left(\frac{1}{30}\right)\) |
sage: chi.jacobi_sum(n)