Normalized defining polynomial
\( x^{32} - 480 x^{30} + 104400 x^{28} - 13608000 x^{26} + 1184625000 x^{24} - 72657000000 x^{22} + \cdots + 13\!\cdots\!50 \)
Invariants
Degree: | $32$ | sage: K.degree()
gp: poldegree(K.pol)
magma: Degree(K);
oscar: degree(K)
| |
Signature: | $[32, 0]$ | sage: K.signature()
gp: K.sign
magma: Signature(K);
oscar: signature(K)
| |
Discriminant: | \(20615283744186880032112588280912120153429260426382010514145280000000000000000\) \(\medspace = 2^{191}\cdot 3^{16}\cdot 5^{16}\) | sage: K.disc()
gp: K.disc
magma: OK := Integers(K); Discriminant(OK);
oscar: OK = ring_of_integers(K); discriminant(OK)
| |
Root discriminant: | \(242.56\) | sage: (K.disc().abs())^(1./K.degree())
gp: abs(K.disc)^(1/poldegree(K.pol))
magma: Abs(Discriminant(OK))^(1/Degree(K));
oscar: (1.0 * dK)^(1/degree(K))
| |
Galois root discriminant: | $2^{191/32}3^{1/2}5^{1/2}\approx 242.55957116988884$ | ||
Ramified primes: | \(2\), \(3\), \(5\) | sage: K.disc().support()
gp: factor(abs(K.disc))[,1]~
magma: PrimeDivisors(Discriminant(OK));
oscar: prime_divisors(discriminant((OK)))
| |
Discriminant root field: | \(\Q(\sqrt{2}) \) | ||
$\card{ \Gal(K/\Q) }$: | $32$ | sage: K.automorphisms()
magma: Automorphisms(K);
oscar: automorphisms(K)
| |
This field is Galois and abelian over $\Q$. | |||
Conductor: | \(1920=2^{7}\cdot 3\cdot 5\) | ||
Dirichlet character group: | $\lbrace$$\chi_{1920}(1,·)$, $\chi_{1920}(899,·)$, $\chi_{1920}(1801,·)$, $\chi_{1920}(779,·)$, $\chi_{1920}(1681,·)$, $\chi_{1920}(659,·)$, $\chi_{1920}(1561,·)$, $\chi_{1920}(539,·)$, $\chi_{1920}(1441,·)$, $\chi_{1920}(419,·)$, $\chi_{1920}(1321,·)$, $\chi_{1920}(299,·)$, $\chi_{1920}(1201,·)$, $\chi_{1920}(179,·)$, $\chi_{1920}(1081,·)$, $\chi_{1920}(59,·)$, $\chi_{1920}(961,·)$, $\chi_{1920}(1859,·)$, $\chi_{1920}(841,·)$, $\chi_{1920}(1739,·)$, $\chi_{1920}(721,·)$, $\chi_{1920}(1619,·)$, $\chi_{1920}(601,·)$, $\chi_{1920}(1499,·)$, $\chi_{1920}(481,·)$, $\chi_{1920}(1379,·)$, $\chi_{1920}(361,·)$, $\chi_{1920}(1259,·)$, $\chi_{1920}(241,·)$, $\chi_{1920}(1139,·)$, $\chi_{1920}(121,·)$, $\chi_{1920}(1019,·)$$\rbrace$ | ||
This is not a CM field. |
Integral basis (with respect to field generator \(a\))
$1$, $a$, $\frac{1}{15}a^{2}$, $\frac{1}{15}a^{3}$, $\frac{1}{225}a^{4}$, $\frac{1}{225}a^{5}$, $\frac{1}{3375}a^{6}$, $\frac{1}{3375}a^{7}$, $\frac{1}{50625}a^{8}$, $\frac{1}{50625}a^{9}$, $\frac{1}{759375}a^{10}$, $\frac{1}{759375}a^{11}$, $\frac{1}{11390625}a^{12}$, $\frac{1}{11390625}a^{13}$, $\frac{1}{170859375}a^{14}$, $\frac{1}{170859375}a^{15}$, $\frac{1}{2562890625}a^{16}$, $\frac{1}{2562890625}a^{17}$, $\frac{1}{38443359375}a^{18}$, $\frac{1}{38443359375}a^{19}$, $\frac{1}{576650390625}a^{20}$, $\frac{1}{576650390625}a^{21}$, $\frac{1}{8649755859375}a^{22}$, $\frac{1}{8649755859375}a^{23}$, $\frac{1}{129746337890625}a^{24}$, $\frac{1}{129746337890625}a^{25}$, $\frac{1}{19\!\cdots\!75}a^{26}$, $\frac{1}{19\!\cdots\!75}a^{27}$, $\frac{1}{29\!\cdots\!25}a^{28}$, $\frac{1}{29\!\cdots\!25}a^{29}$, $\frac{1}{43\!\cdots\!75}a^{30}$, $\frac{1}{43\!\cdots\!75}a^{31}$
Monogenic: | Not computed | |
Index: | $1$ | |
Inessential primes: | None |
Class group and class number
not computed
Unit group
Rank: | $31$ | sage: UK.rank()
gp: K.fu
magma: UnitRank(K);
oscar: rank(UK)
| |
Torsion generator: | \( -1 \) (order $2$) | sage: UK.torsion_generator()
gp: K.tu[2]
magma: K!f(TU.1) where TU,f is TorsionUnitGroup(K);
oscar: torsion_units_generator(OK)
| |
Fundamental units: | not computed | sage: UK.fundamental_units()
gp: K.fu
magma: [K|fUK(g): g in Generators(UK)];
oscar: [K(fUK(a)) for a in gens(UK)]
| |
Regulator: | not computed | sage: K.regulator()
gp: K.reg
magma: Regulator(K);
oscar: regulator(K)
|
Class number formula
\[ \begin{aligned}\lim_{s\to 1} (s-1)\zeta_K(s) =\mathstrut & \frac{2^{r_1}\cdot (2\pi)^{r_2}\cdot R\cdot h}{w\cdot\sqrt{|D|}}\cr $
Galois group
A cyclic group of order 32 |
The 32 conjugacy class representatives for $C_{32}$ |
Character table for $C_{32}$ |
Intermediate fields
\(\Q(\sqrt{2}) \), \(\Q(\zeta_{16})^+\), \(\Q(\zeta_{32})^+\), \(\Q(\zeta_{64})^+\) |
Fields in the database are given up to isomorphism. Isomorphic intermediate fields are shown with their multiplicities.
Frobenius cycle types
$p$ | $2$ | $3$ | $5$ | $7$ | $11$ | $13$ | $17$ | $19$ | $23$ | $29$ | $31$ | $37$ | $41$ | $43$ | $47$ | $53$ | $59$ |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Cycle type | R | R | R | $16^{2}$ | $32$ | $32$ | ${\href{/padicField/17.8.0.1}{8} }^{4}$ | $32$ | $16^{2}$ | $32$ | ${\href{/padicField/31.4.0.1}{4} }^{8}$ | $32$ | $16^{2}$ | $32$ | ${\href{/padicField/47.8.0.1}{8} }^{4}$ | $32$ | $32$ |
In the table, R denotes a ramified prime. Cycle lengths which are repeated in a cycle type are indicated by exponents.
Local algebras for ramified primes
$p$ | Label | Polynomial | $e$ | $f$ | $c$ | Galois group | Slope content |
---|---|---|---|---|---|---|---|
\(2\) | Deg $32$ | $32$ | $1$ | $191$ | |||
\(3\) | Deg $32$ | $2$ | $16$ | $16$ | |||
\(5\) | Deg $32$ | $2$ | $16$ | $16$ |