from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(2940, base_ring=CyclotomicField(28))
M = H._module
chi = DirichletCharacter(H, M([0,0,21,22]))
pari: [g,chi] = znchar(Mod(13,2940))
Basic properties
| Modulus: | \(2940\) | |
| Conductor: | \(245\) | sage: chi.conductor()
pari: znconreyconductor(g,chi)
|
| Order: | \(28\) | sage: chi.multiplicative_order()
pari: charorder(g,chi)
|
| Real: | no | |
| Primitive: | no, induced from \(\chi_{245}(13,\cdot)\) | sage: chi.is_primitive()
pari: #znconreyconductor(g,chi)==1
|
| Minimal: | yes | |
| Parity: | even | sage: chi.is_odd()
pari: zncharisodd(g,chi)
|
Galois orbit 2940.cq
\(\chi_{2940}(13,\cdot)\) \(\chi_{2940}(433,\cdot)\) \(\chi_{2940}(517,\cdot)\) \(\chi_{2940}(853,\cdot)\) \(\chi_{2940}(937,\cdot)\) \(\chi_{2940}(1357,\cdot)\) \(\chi_{2940}(1693,\cdot)\) \(\chi_{2940}(1777,\cdot)\) \(\chi_{2940}(2113,\cdot)\) \(\chi_{2940}(2197,\cdot)\) \(\chi_{2940}(2533,\cdot)\) \(\chi_{2940}(2617,\cdot)\)
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: | Number field defined by a degree 28 polynomial |
Values on generators
\((1471,1961,1177,1081)\) → \((1,1,-i,e\left(\frac{11}{14}\right))\)
First values
| \(a\) | \(-1\) | \(1\) | \(11\) | \(13\) | \(17\) | \(19\) | \(23\) | \(29\) | \(31\) | \(37\) | \(41\) | \(43\) |
| \( \chi_{ 2940 }(13, a) \) | \(1\) | \(1\) | \(e\left(\frac{3}{7}\right)\) | \(e\left(\frac{5}{28}\right)\) | \(e\left(\frac{11}{28}\right)\) | \(1\) | \(e\left(\frac{3}{28}\right)\) | \(e\left(\frac{9}{14}\right)\) | \(-1\) | \(e\left(\frac{25}{28}\right)\) | \(e\left(\frac{11}{14}\right)\) | \(e\left(\frac{27}{28}\right)\) |
sage: chi.jacobi_sum(n)