Normalized defining polynomial
\( x^{9} - x^{8} - 1965 x^{7} + 73862 x^{6} - 1377684 x^{5} + 15584739 x^{4} - 111818439 x^{3} + \cdots + 1392458831 \)
Invariants
Degree: | $9$ | sage: K.degree()
gp: poldegree(K.pol)
magma: Degree(K);
oscar: degree(K)
| |
Signature: | $[3, 3]$ | sage: K.signature()
gp: K.sign
magma: Signature(K);
oscar: signature(K)
| |
Discriminant: |
\(-765763711957563428907417238099136\)
\(\medspace = -\,2^{6}\cdot 43^{7}\cdot 71^{3}\cdot 103^{7}\)
| sage: K.disc()
gp: K.disc
magma: OK := Integers(K); Discriminant(OK);
oscar: OK = ring_of_integers(K); discriminant(OK)
| |
Root discriminant: | \(4505.97\) | 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: | $2^{2/3}43^{5/6}71^{1/2}103^{5/6}\approx 14618.536789485457$ | ||
Ramified primes: |
\(2\), \(43\), \(71\), \(103\)
| sage: K.disc().support()
gp: factor(abs(K.disc))[,1]~
magma: PrimeDivisors(Discriminant(OK));
oscar: prime_divisors(discriminant((OK)))
| |
Discriminant root field: | \(\Q(\sqrt{-314459}) \) | ||
$\card{ \Aut(K/\Q) }$: | $3$ | sage: K.automorphisms()
magma: Automorphisms(K);
oscar: automorphisms(K)
| |
This field is not Galois over $\Q$. | |||
This is not a CM field. |
Integral basis (with respect to field generator \(a\))
$1$, $a$, $a^{2}$, $a^{3}$, $a^{4}$, $a^{5}$, $\frac{1}{71}a^{6}+\frac{23}{71}a^{5}+\frac{31}{71}a^{4}+\frac{32}{71}a^{3}-\frac{21}{71}a^{2}-\frac{29}{71}a-\frac{7}{71}$, $\frac{1}{71}a^{7}-\frac{1}{71}a^{5}+\frac{29}{71}a^{4}+\frac{24}{71}a^{3}+\frac{28}{71}a^{2}+\frac{21}{71}a+\frac{19}{71}$, $\frac{1}{71}a^{8}-\frac{19}{71}a^{5}-\frac{16}{71}a^{4}-\frac{11}{71}a^{3}-\frac{10}{71}a-\frac{7}{71}$
Monogenic: | Not computed | |
Index: | $1$ | |
Inessential primes: | None |
Class group and class number
$C_{2}\times C_{2}\times C_{42}\times C_{558516}$, which has order $93830688$ (assuming GRH)
Unit group
Rank: | $5$ | 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: |
$a-7$, $a^{8}+7a^{7}-1909a^{6}+58590a^{5}-908964a^{4}+8313027a^{3}-45314223a^{2}+136264113a-174057354$, $\frac{21}{71}a^{8}+\frac{69}{71}a^{7}-\frac{41186}{71}a^{6}+\frac{1371540}{71}a^{5}-\frac{22661224}{71}a^{4}+\frac{220237269}{71}a^{3}-\frac{1277530904}{71}a^{2}+\frac{4094526541}{71}a-\frac{5578327291}{71}$, $\frac{5}{71}a^{8}+\frac{33}{71}a^{7}-\frac{9574}{71}a^{6}+\frac{296550}{71}a^{5}-\frac{4635011}{71}a^{4}+\frac{42707447}{71}a^{3}-\frac{234646284}{71}a^{2}+\frac{711548834}{71}a-\frac{916912158}{71}$, $\frac{238}{71}a^{8}+\frac{1598}{71}a^{7}-\frac{455362}{71}a^{6}+\frac{14066106}{71}a^{5}-\frac{219343350}{71}a^{4}+\frac{2016174058}{71}a^{3}-\frac{11047516878}{71}a^{2}+\frac{33398547684}{71}a-\frac{42890027189}{71}$
| 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: | \( 74376.1833618562 \) (assuming GRH) | sage: K.regulator()
gp: K.reg
magma: Regulator(K);
oscar: regulator(K)
|
Class number formula
\[ \begin{aligned}\lim_{s\to 1} (s-1)\zeta_K(s) =\mathstrut & \frac{2^{r_1}\cdot (2\pi)^{r_2}\cdot R\cdot h}{w\cdot\sqrt{|D|}}\cr \approx\mathstrut &\frac{2^{3}\cdot(2\pi)^{3}\cdot 74376.1833618562 \cdot 93830688}{2\cdot\sqrt{765763711957563428907417238099136}}\cr\approx \mathstrut & 0.250225170996319 \end{aligned}\] (assuming GRH)
Galois group
$C_3\times S_3$ (as 9T4):
A solvable group of order 18 |
The 9 conjugacy class representatives for $S_3\times C_3$ |
Character table for $S_3\times C_3$ |
Intermediate fields
3.3.19616041.2, 3.1.1257836.1 |
Fields in the database are given up to isomorphism. Isomorphic intermediate fields are shown with their multiplicities.
Sibling fields
Galois closure: | data not computed |
Degree 6 sibling: | data not computed |
Minimal sibling: | 6.0.9759407007223876480827824.1 |
Frobenius cycle types
$p$ | $2$ | $3$ | $5$ | $7$ | $11$ | $13$ | $17$ | $19$ | $23$ | $29$ | $31$ | $37$ | $41$ | $43$ | $47$ | $53$ | $59$ |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Cycle type | R | ${\href{/padicField/3.3.0.1}{3} }^{3}$ | ${\href{/padicField/5.3.0.1}{3} }^{3}$ | ${\href{/padicField/7.3.0.1}{3} }^{3}$ | ${\href{/padicField/11.3.0.1}{3} }^{3}$ | ${\href{/padicField/13.6.0.1}{6} }{,}\,{\href{/padicField/13.3.0.1}{3} }$ | ${\href{/padicField/17.2.0.1}{2} }^{3}{,}\,{\href{/padicField/17.1.0.1}{1} }^{3}$ | ${\href{/padicField/19.2.0.1}{2} }^{3}{,}\,{\href{/padicField/19.1.0.1}{1} }^{3}$ | ${\href{/padicField/23.6.0.1}{6} }{,}\,{\href{/padicField/23.3.0.1}{3} }$ | ${\href{/padicField/29.6.0.1}{6} }{,}\,{\href{/padicField/29.3.0.1}{3} }$ | ${\href{/padicField/31.3.0.1}{3} }^{3}$ | ${\href{/padicField/37.3.0.1}{3} }^{3}$ | ${\href{/padicField/41.6.0.1}{6} }{,}\,{\href{/padicField/41.3.0.1}{3} }$ | R | ${\href{/padicField/47.3.0.1}{3} }^{3}$ | ${\href{/padicField/53.3.0.1}{3} }^{3}$ | ${\href{/padicField/59.6.0.1}{6} }{,}\,{\href{/padicField/59.3.0.1}{3} }$ |
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 |
---|---|---|---|---|---|---|---|
\(2\)
| 2.9.6.1 | $x^{9} + 3 x^{7} + 9 x^{6} + 3 x^{5} - 26 x^{3} + 9 x^{2} - 27 x + 29$ | $3$ | $3$ | $6$ | $S_3\times C_3$ | $[\ ]_{3}^{6}$ |
\(43\)
| 43.3.2.2 | $x^{3} + 301$ | $3$ | $1$ | $2$ | $C_3$ | $[\ ]_{3}$ |
43.6.5.3 | $x^{6} + 301$ | $6$ | $1$ | $5$ | $C_6$ | $[\ ]_{6}$ | |
\(71\)
| $\Q_{71}$ | $x + 64$ | $1$ | $1$ | $0$ | Trivial | $[\ ]$ |
$\Q_{71}$ | $x + 64$ | $1$ | $1$ | $0$ | Trivial | $[\ ]$ | |
$\Q_{71}$ | $x + 64$ | $1$ | $1$ | $0$ | Trivial | $[\ ]$ | |
71.2.1.2 | $x^{2} + 71$ | $2$ | $1$ | $1$ | $C_2$ | $[\ ]_{2}$ | |
71.2.1.2 | $x^{2} + 71$ | $2$ | $1$ | $1$ | $C_2$ | $[\ ]_{2}$ | |
71.2.1.2 | $x^{2} + 71$ | $2$ | $1$ | $1$ | $C_2$ | $[\ ]_{2}$ | |
\(103\)
| 103.3.2.2 | $x^{3} + 206$ | $3$ | $1$ | $2$ | $C_3$ | $[\ ]_{3}$ |
103.6.5.4 | $x^{6} + 206$ | $6$ | $1$ | $5$ | $C_6$ | $[\ ]_{6}$ |