Normalized defining polynomial
\( x^{9} - x^{7} - 3x^{6} + 7x^{5} + 2x^{4} - 16x^{3} - 7x^{2} - x - 1 \)
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: | \(-10474708672\) \(\medspace = -\,2^{6}\cdot 547^{3}\) | sage: K.disc()
gp: K.disc
magma: OK := Integers(K); Discriminant(OK);
oscar: OK = ring_of_integers(K); discriminant(OK)
| |
Root discriminant: | \(12.98\) | 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: | $2^{2/3}547^{1/2}\approx 37.126185214548926$ | ||
Ramified primes: | \(2\), \(547\) | sage: K.disc().support()
gp: factor(abs(K.disc))[,1]~
magma: PrimeDivisors(Discriminant(OK));
oscar: prime_divisors(discriminant((OK)))
| |
Discriminant root field: | \(\Q(\sqrt{-547}) \) | ||
$\card{ \Aut(K/\Q) }$: | $3$ | 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 \(a\))
$1$, $a$, $a^{2}$, $a^{3}$, $a^{4}$, $a^{5}$, $\frac{1}{2}a^{6}-\frac{1}{2}a^{2}-\frac{1}{2}$, $\frac{1}{2}a^{7}-\frac{1}{2}a^{3}-\frac{1}{2}a$, $\frac{1}{578}a^{8}-\frac{83}{578}a^{7}-\frac{24}{289}a^{6}+\frac{112}{289}a^{5}-\frac{89}{578}a^{4}-\frac{125}{578}a^{3}-\frac{45}{578}a^{2}-\frac{29}{578}a+\frac{47}{289}$
Monogenic: | Not computed | |
Index: | $1$ | |
Inessential primes: | None |
Class group and class number
Trivial group, which has order $1$
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: | $\frac{36}{289}a^{8}-\frac{98}{289}a^{7}+\frac{6}{289}a^{6}-\frac{28}{289}a^{5}+\frac{553}{289}a^{4}-\frac{743}{289}a^{3}-\frac{464}{289}a^{2}+\frac{1268}{289}a+\frac{205}{289}$, $a$, $\frac{443}{578}a^{8}-\frac{33}{289}a^{7}-\frac{228}{289}a^{6}-\frac{670}{289}a^{5}+\frac{3345}{578}a^{4}+\frac{201}{289}a^{3}-\frac{7219}{578}a^{2}-\frac{1366}{289}a+\frac{302}{289}$, $\frac{52}{289}a^{8}+\frac{19}{289}a^{7}-\frac{79}{578}a^{6}-\frac{201}{289}a^{5}+\frac{285}{289}a^{4}+\frac{147}{289}a^{3}-\frac{1501}{578}a^{2}-\frac{930}{289}a-\frac{917}{578}$, $\frac{46}{289}a^{8}-\frac{61}{289}a^{7}-\frac{81}{578}a^{6}-\frac{100}{289}a^{5}+\frac{530}{289}a^{4}-\frac{259}{289}a^{3}-\frac{1539}{578}a^{2}+\frac{400}{289}a+\frac{267}{578}$ | 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: | \( 29.1520587428 \) | sage: K.regulator()
gp: K.reg
magma: Regulator(K);
oscar: regulator(K)
|
Class number formula
\[ \begin{aligned}\lim_{s\to 1} (s-1)\zeta_K(s) =\mathstrut & \frac{2^{r_1}\cdot (2\pi)^{r_2}\cdot R\cdot h}{w\cdot\sqrt{|D|}}\cr \approx\mathstrut &\frac{2^{3}\cdot(2\pi)^{3}\cdot 29.1520587428 \cdot 1}{2\cdot\sqrt{10474708672}}\cr\approx \mathstrut & 0.282616719081 \end{aligned}\]
Galois group
$C_3^2:S_3$ (as 9T12):
A solvable group of order 54 |
The 10 conjugacy class representatives for $(C_3^2:C_3):C_2$ |
Character table for $(C_3^2:C_3):C_2$ |
Intermediate fields
3.1.2188.3 |
Fields in the database are given up to isomorphism. Isomorphic intermediate fields are shown with their multiplicities.
Sibling fields
Degree 9 siblings: | data not computed |
Degree 18 siblings: | data not computed |
Degree 27 sibling: | data not computed |
Minimal sibling: | 9.3.2618677168.1 |
Frobenius cycle types
$p$ | $2$ | $3$ | $5$ | $7$ | $11$ | $13$ | $17$ | $19$ | $23$ | $29$ | $31$ | $37$ | $41$ | $43$ | $47$ | $53$ | $59$ |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Cycle type | R | ${\href{/padicField/3.6.0.1}{6} }{,}\,{\href{/padicField/3.3.0.1}{3} }$ | ${\href{/padicField/5.6.0.1}{6} }{,}\,{\href{/padicField/5.3.0.1}{3} }$ | ${\href{/padicField/7.6.0.1}{6} }{,}\,{\href{/padicField/7.3.0.1}{3} }$ | ${\href{/padicField/11.3.0.1}{3} }^{3}$ | ${\href{/padicField/13.3.0.1}{3} }^{3}$ | ${\href{/padicField/17.2.0.1}{2} }^{3}{,}\,{\href{/padicField/17.1.0.1}{1} }^{3}$ | ${\href{/padicField/19.3.0.1}{3} }^{2}{,}\,{\href{/padicField/19.1.0.1}{1} }^{3}$ | ${\href{/padicField/23.2.0.1}{2} }^{3}{,}\,{\href{/padicField/23.1.0.1}{1} }^{3}$ | ${\href{/padicField/29.3.0.1}{3} }^{2}{,}\,{\href{/padicField/29.1.0.1}{1} }^{3}$ | ${\href{/padicField/31.6.0.1}{6} }{,}\,{\href{/padicField/31.3.0.1}{3} }$ | ${\href{/padicField/37.6.0.1}{6} }{,}\,{\href{/padicField/37.3.0.1}{3} }$ | ${\href{/padicField/41.2.0.1}{2} }^{3}{,}\,{\href{/padicField/41.1.0.1}{1} }^{3}$ | ${\href{/padicField/43.6.0.1}{6} }{,}\,{\href{/padicField/43.3.0.1}{3} }$ | ${\href{/padicField/47.3.0.1}{3} }^{3}$ | ${\href{/padicField/53.3.0.1}{3} }^{3}$ | ${\href{/padicField/59.2.0.1}{2} }^{3}{,}\,{\href{/padicField/59.1.0.1}{1} }^{3}$ |
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 | $x^{9} + 3 x^{7} + 9 x^{6} + 3 x^{5} - 26 x^{3} + 9 x^{2} - 27 x + 29$ | $3$ | $3$ | $6$ | $S_3\times C_3$ | $[\ ]_{3}^{6}$ |
\(547\) | Deg $3$ | $1$ | $3$ | $0$ | $C_3$ | $[\ ]^{3}$ | |
Deg $6$ | $2$ | $3$ | $3$ |
Artin representations
Label | Dimension | Conductor | Artin stem field | $G$ | Ind | $\chi(c)$ | |
---|---|---|---|---|---|---|---|
* | 1.1.1t1.a.a | $1$ | $1$ | \(\Q\) | $C_1$ | $1$ | $1$ |
1.547.2t1.a.a | $1$ | $ 547 $ | \(\Q(\sqrt{-547}) \) | $C_2$ (as 2T1) | $1$ | $-1$ | |
* | 2.2188.3t2.b.a | $2$ | $ 2^{2} \cdot 547 $ | 3.1.2188.3 | $S_3$ (as 3T2) | $1$ | $0$ |
2.2188.3t2.c.a | $2$ | $ 2^{2} \cdot 547 $ | 3.1.2188.1 | $S_3$ (as 3T2) | $1$ | $0$ | |
2.547.3t2.a.a | $2$ | $ 547 $ | 3.1.547.1 | $S_3$ (as 3T2) | $1$ | $0$ | |
2.2188.3t2.a.a | $2$ | $ 2^{2} \cdot 547 $ | 3.1.2188.2 | $S_3$ (as 3T2) | $1$ | $0$ | |
* | 3.2188.9t12.a.a | $3$ | $ 2^{2} \cdot 547 $ | 9.3.10474708672.3 | $(C_3^2:C_3):C_2$ (as 9T12) | $0$ | $1$ |
* | 3.2188.9t12.a.b | $3$ | $ 2^{2} \cdot 547 $ | 9.3.10474708672.3 | $(C_3^2:C_3):C_2$ (as 9T12) | $0$ | $1$ |
3.1196836.18t24.a.a | $3$ | $ 2^{2} \cdot 547^{2}$ | 9.3.10474708672.3 | $(C_3^2:C_3):C_2$ (as 9T12) | $0$ | $-1$ | |
3.1196836.18t24.a.b | $3$ | $ 2^{2} \cdot 547^{2}$ | 9.3.10474708672.3 | $(C_3^2:C_3):C_2$ (as 9T12) | $0$ | $-1$ |