Normalized defining polynomial
\( x^{9} - 2x^{8} + x^{7} + 2x^{6} + 3x^{4} - 3x^{3} - 5x^{2} + 5x - 1 \)
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: | \(-11554111408\) \(\medspace = -\,2^{4}\cdot 7^{4}\cdot 67^{3}\) | sage: K.disc()
gp: K.disc
magma: OK := Integers(K); Discriminant(OK);
oscar: OK = ring_of_integers(K); discriminant(OK)
| |
Root discriminant: | \(13.12\) | 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: | $2^{2/3}7^{1/2}67^{1/2}\approx 34.37740456755558$ | ||
Ramified primes: | \(2\), \(7\), \(67\) | sage: K.disc().support()
gp: factor(abs(K.disc))[,1]~
magma: PrimeDivisors(Discriminant(OK));
oscar: prime_divisors(discriminant((OK)))
| |
Discriminant root field: | \(\Q(\sqrt{-67}) \) | ||
$\card{ \Aut(K/\Q) }$: | $1$ | 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 \(a\))
$1$, $a$, $a^{2}$, $a^{3}$, $a^{4}$, $a^{5}$, $a^{6}$, $a^{7}$, $\frac{1}{7}a^{8}+\frac{2}{7}a^{7}+\frac{2}{7}a^{6}+\frac{3}{7}a^{5}-\frac{2}{7}a^{4}+\frac{2}{7}a^{3}-\frac{2}{7}a^{2}+\frac{1}{7}a+\frac{2}{7}$
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: | $a$, $a^{8}-2a^{7}+a^{6}+2a^{5}+3a^{3}-3a^{2}-5a+4$, $\frac{39}{7}a^{8}-\frac{55}{7}a^{7}+\frac{8}{7}a^{6}+\frac{82}{7}a^{5}+\frac{48}{7}a^{4}+\frac{148}{7}a^{3}-\frac{29}{7}a^{2}-\frac{206}{7}a+\frac{78}{7}$, $\frac{23}{7}a^{8}-\frac{31}{7}a^{7}+\frac{4}{7}a^{6}+\frac{48}{7}a^{5}+\frac{31}{7}a^{4}+\frac{88}{7}a^{3}-\frac{4}{7}a^{2}-\frac{110}{7}a+\frac{39}{7}$, $\frac{31}{7}a^{8}-\frac{36}{7}a^{7}-\frac{1}{7}a^{6}+\frac{65}{7}a^{5}+\frac{50}{7}a^{4}+\frac{139}{7}a^{3}+\frac{15}{7}a^{2}-\frac{144}{7}a+\frac{34}{7}$ | 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: | \( 43.0626614118 \) | sage: K.regulator()
gp: K.reg
magma: Regulator(K);
oscar: regulator(K)
|
Class number formula
\[ \begin{aligned}\lim_{s\to 1} (s-1)\zeta_K(s) =\mathstrut & \frac{2^{r_1}\cdot (2\pi)^{r_2}\cdot R\cdot h}{w\cdot\sqrt{|D|}}\cr \approx\mathstrut &\frac{2^{3}\cdot(2\pi)^{3}\cdot 43.0626614118 \cdot 1}{2\cdot\sqrt{11554111408}}\cr\approx \mathstrut & 0.397495474091 \end{aligned}\]
Galois group
$C_3^2:D_6$ (as 9T18):
A solvable group of order 108 |
The 11 conjugacy class representatives for $C_3^2 : D_{6} $ |
Character table for $C_3^2 : D_{6} $ |
Intermediate fields
3.3.469.1 |
Fields in the database are given up to isomorphism. Isomorphic intermediate fields are shown with their multiplicities.
Sibling fields
Degree 9 sibling: | data not computed |
Degree 18 siblings: | data not computed |
Degree 27 sibling: | data not computed |
Degree 36 siblings: | data not computed |
Minimal sibling: | 9.1.6602349376.1 |
Frobenius cycle types
$p$ | $2$ | $3$ | $5$ | $7$ | $11$ | $13$ | $17$ | $19$ | $23$ | $29$ | $31$ | $37$ | $41$ | $43$ | $47$ | $53$ | $59$ |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Cycle type | R | ${\href{/padicField/3.6.0.1}{6} }{,}\,{\href{/padicField/3.3.0.1}{3} }$ | ${\href{/padicField/5.6.0.1}{6} }{,}\,{\href{/padicField/5.3.0.1}{3} }$ | R | ${\href{/padicField/11.6.0.1}{6} }{,}\,{\href{/padicField/11.3.0.1}{3} }$ | ${\href{/padicField/13.6.0.1}{6} }{,}\,{\href{/padicField/13.3.0.1}{3} }$ | ${\href{/padicField/17.6.0.1}{6} }{,}\,{\href{/padicField/17.2.0.1}{2} }{,}\,{\href{/padicField/17.1.0.1}{1} }$ | ${\href{/padicField/19.6.0.1}{6} }{,}\,{\href{/padicField/19.2.0.1}{2} }{,}\,{\href{/padicField/19.1.0.1}{1} }$ | ${\href{/padicField/23.3.0.1}{3} }^{3}$ | ${\href{/padicField/29.3.0.1}{3} }^{3}$ | ${\href{/padicField/31.6.0.1}{6} }{,}\,{\href{/padicField/31.3.0.1}{3} }$ | ${\href{/padicField/37.3.0.1}{3} }^{3}$ | ${\href{/padicField/41.6.0.1}{6} }{,}\,{\href{/padicField/41.3.0.1}{3} }$ | ${\href{/padicField/43.6.0.1}{6} }{,}\,{\href{/padicField/43.3.0.1}{3} }$ | ${\href{/padicField/47.6.0.1}{6} }{,}\,{\href{/padicField/47.2.0.1}{2} }{,}\,{\href{/padicField/47.1.0.1}{1} }$ | ${\href{/padicField/53.6.0.1}{6} }{,}\,{\href{/padicField/53.3.0.1}{3} }$ | ${\href{/padicField/59.6.0.1}{6} }{,}\,{\href{/padicField/59.2.0.1}{2} }{,}\,{\href{/padicField/59.1.0.1}{1} }$ |
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 |
---|---|---|---|---|---|---|---|
\(2\) | 2.3.0.1 | $x^{3} + x + 1$ | $1$ | $3$ | $0$ | $C_3$ | $[\ ]^{3}$ |
2.6.4.2 | $x^{6} - 2 x^{3} + 4$ | $3$ | $2$ | $4$ | $S_3\times C_3$ | $[\ ]_{3}^{6}$ | |
\(7\) | $\Q_{7}$ | $x + 4$ | $1$ | $1$ | $0$ | Trivial | $[\ ]$ |
7.2.1.2 | $x^{2} + 7$ | $2$ | $1$ | $1$ | $C_2$ | $[\ ]_{2}$ | |
7.2.1.1 | $x^{2} + 21$ | $2$ | $1$ | $1$ | $C_2$ | $[\ ]_{2}$ | |
7.4.2.1 | $x^{4} + 12 x^{3} + 56 x^{2} + 120 x + 268$ | $2$ | $2$ | $2$ | $C_2^2$ | $[\ ]_{2}^{2}$ | |
\(67\) | 67.3.0.1 | $x^{3} + 6 x + 65$ | $1$ | $3$ | $0$ | $C_3$ | $[\ ]^{3}$ |
67.6.3.2 | $x^{6} - 36582 x^{5} + 2222863221 x^{4} + 128481437253012 x^{3} + 148931835807 x^{2} - 164216598 x + 300763$ | $2$ | $3$ | $3$ | $C_6$ | $[\ ]_{2}^{3}$ |
Artin representations
Label | Dimension | Conductor | Artin stem field | $G$ | Ind | $\chi(c)$ | |
---|---|---|---|---|---|---|---|
* | 1.1.1t1.a.a | $1$ | $1$ | \(\Q\) | $C_1$ | $1$ | $1$ |
1.7.2t1.a.a | $1$ | $ 7 $ | \(\Q(\sqrt{-7}) \) | $C_2$ (as 2T1) | $1$ | $-1$ | |
1.469.2t1.a.a | $1$ | $ 7 \cdot 67 $ | \(\Q(\sqrt{469}) \) | $C_2$ (as 2T1) | $1$ | $1$ | |
1.67.2t1.a.a | $1$ | $ 67 $ | \(\Q(\sqrt{-67}) \) | $C_2$ (as 2T1) | $1$ | $-1$ | |
2.469.6t3.a.a | $2$ | $ 7 \cdot 67 $ | 6.0.14737387.1 | $D_{6}$ (as 6T3) | $1$ | $-2$ | |
2.13132.6t3.b.a | $2$ | $ 2^{2} \cdot 7^{2} \cdot 67 $ | 6.0.24635632.2 | $D_{6}$ (as 6T3) | $1$ | $0$ | |
2.268.3t2.a.a | $2$ | $ 2^{2} \cdot 67 $ | 3.1.268.1 | $S_3$ (as 3T2) | $1$ | $0$ | |
* | 2.469.3t2.a.a | $2$ | $ 7 \cdot 67 $ | 3.3.469.1 | $S_3$ (as 3T2) | $1$ | $2$ |
4.3519376.6t9.a.a | $4$ | $ 2^{4} \cdot 7^{2} \cdot 67^{2}$ | 6.0.24635632.1 | $S_3^2$ (as 6T9) | $1$ | $0$ | |
6.110589352048.18t51.b.a | $6$ | $ 2^{4} \cdot 7^{3} \cdot 67^{4}$ | 9.3.11554111408.1 | $C_3^2 : D_{6} $ (as 9T18) | $1$ | $0$ | |
* | 6.24635632.9t18.b.a | $6$ | $ 2^{4} \cdot 7^{3} \cdot 67^{2}$ | 9.3.11554111408.1 | $C_3^2 : D_{6} $ (as 9T18) | $1$ | $0$ |