Normalized defining polynomial
\( x^{9} + x^{7} - 3x^{6} - x^{5} - 2x^{4} + 2x^{3} + 3x^{2} - 3x + 1 \)
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: | \(-1851804352\) \(\medspace = -\,2^{6}\cdot 307^{3}\) | sage: K.disc()
gp: K.disc
magma: OK := Integers(K); Discriminant(OK);
oscar: OK = ring_of_integers(K); discriminant(OK)
| |
Root discriminant: | \(10.71\) | 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: | $2^{2/3}307^{1/2}\approx 27.813513345772268$ | ||
Ramified primes: | \(2\), \(307\) | sage: K.disc().support()
gp: factor(abs(K.disc))[,1]~
magma: PrimeDivisors(Discriminant(OK));
oscar: prime_divisors(discriminant((OK)))
| |
Discriminant root field: | \(\Q(\sqrt{-307}) \) | ||
$\card{ \Aut(K/\Q) }$: | $3$ | 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 \(a\))
$1$, $a$, $a^{2}$, $a^{3}$, $a^{4}$, $a^{5}$, $a^{6}$, $a^{7}$, $\frac{1}{11}a^{8}+\frac{4}{11}a^{7}-\frac{5}{11}a^{6}-\frac{1}{11}a^{5}-\frac{5}{11}a^{4}+\frac{2}{11}a^{2}-\frac{3}{11}$
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: | $\frac{16}{11}a^{8}+\frac{9}{11}a^{7}+\frac{19}{11}a^{6}-\frac{38}{11}a^{5}-\frac{36}{11}a^{4}-4a^{3}+\frac{10}{11}a^{2}+5a-\frac{26}{11}$, $\frac{6}{11}a^{8}+\frac{2}{11}a^{7}+\frac{3}{11}a^{6}-\frac{17}{11}a^{5}-\frac{19}{11}a^{4}-a^{3}+\frac{12}{11}a^{2}+3a-\frac{7}{11}$, $\frac{7}{11}a^{8}+\frac{6}{11}a^{7}+\frac{9}{11}a^{6}-\frac{18}{11}a^{5}-\frac{24}{11}a^{4}-2a^{3}+\frac{3}{11}a^{2}+3a-\frac{10}{11}$, $\frac{2}{11}a^{8}-\frac{3}{11}a^{7}+\frac{1}{11}a^{6}-\frac{13}{11}a^{5}+\frac{1}{11}a^{4}+\frac{15}{11}a^{2}+2a-\frac{6}{11}$, $\frac{17}{11}a^{8}+\frac{2}{11}a^{7}+\frac{14}{11}a^{6}-\frac{50}{11}a^{5}-\frac{30}{11}a^{4}-3a^{3}+\frac{34}{11}a^{2}+6a-\frac{40}{11}$ | 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: | \( 11.2006960433 \) | sage: K.regulator()
gp: K.reg
magma: Regulator(K);
oscar: regulator(K)
|
Class number formula
\[ \begin{aligned}\lim_{s\to 1} (s-1)\zeta_K(s) =\mathstrut & \frac{2^{r_1}\cdot (2\pi)^{r_2}\cdot R\cdot h}{w\cdot\sqrt{|D|}}\cr \approx\mathstrut &\frac{2^{3}\cdot(2\pi)^{3}\cdot 11.2006960433 \cdot 1}{2\cdot\sqrt{1851804352}}\cr\approx \mathstrut & 0.258254000675 \end{aligned}\]
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
3.1.1228.3 |
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: | 9.3.462951088.1 |
Frobenius cycle types
$p$ | $2$ | $3$ | $5$ | $7$ | $11$ | $13$ | $17$ | $19$ | $23$ | $29$ | $31$ | $37$ | $41$ | $43$ | $47$ | $53$ | $59$ |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Cycle type | R | ${\href{/padicField/3.6.0.1}{6} }{,}\,{\href{/padicField/3.3.0.1}{3} }$ | ${\href{/padicField/5.6.0.1}{6} }{,}\,{\href{/padicField/5.3.0.1}{3} }$ | ${\href{/padicField/7.3.0.1}{3} }^{3}$ | ${\href{/padicField/11.3.0.1}{3} }^{2}{,}\,{\href{/padicField/11.1.0.1}{1} }^{3}$ | ${\href{/padicField/13.6.0.1}{6} }{,}\,{\href{/padicField/13.3.0.1}{3} }$ | ${\href{/padicField/17.3.0.1}{3} }^{3}$ | ${\href{/padicField/19.3.0.1}{3} }^{3}$ | ${\href{/padicField/23.6.0.1}{6} }{,}\,{\href{/padicField/23.3.0.1}{3} }$ | ${\href{/padicField/29.6.0.1}{6} }{,}\,{\href{/padicField/29.3.0.1}{3} }$ | ${\href{/padicField/31.2.0.1}{2} }^{3}{,}\,{\href{/padicField/31.1.0.1}{1} }^{3}$ | ${\href{/padicField/37.3.0.1}{3} }^{2}{,}\,{\href{/padicField/37.1.0.1}{1} }^{3}$ | ${\href{/padicField/41.3.0.1}{3} }^{2}{,}\,{\href{/padicField/41.1.0.1}{1} }^{3}$ | ${\href{/padicField/43.6.0.1}{6} }{,}\,{\href{/padicField/43.3.0.1}{3} }$ | ${\href{/padicField/47.6.0.1}{6} }{,}\,{\href{/padicField/47.3.0.1}{3} }$ | ${\href{/padicField/53.3.0.1}{3} }^{3}$ | ${\href{/padicField/59.6.0.1}{6} }{,}\,{\href{/padicField/59.3.0.1}{3} }$ |
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 | $x^{9} + 3 x^{7} + 9 x^{6} + 3 x^{5} - 26 x^{3} + 9 x^{2} - 27 x + 29$ | $3$ | $3$ | $6$ | $S_3\times C_3$ | $[\ ]_{3}^{6}$ |
\(307\) | 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 | $1$ | $1$ | \(\Q\) | $C_1$ | $1$ | $1$ |
1.307.2t1.a.a | $1$ | $ 307 $ | \(\Q(\sqrt{-307}) \) | $C_2$ (as 2T1) | $1$ | $-1$ | |
* | 2.1228.3t2.b.a | $2$ | $ 2^{2} \cdot 307 $ | 3.1.1228.3 | $S_3$ (as 3T2) | $1$ | $0$ |
2.1228.3t2.c.a | $2$ | $ 2^{2} \cdot 307 $ | 3.1.1228.2 | $S_3$ (as 3T2) | $1$ | $0$ | |
2.1228.3t2.a.a | $2$ | $ 2^{2} \cdot 307 $ | 3.1.1228.1 | $S_3$ (as 3T2) | $1$ | $0$ | |
2.307.3t2.a.a | $2$ | $ 307 $ | 3.1.307.1 | $S_3$ (as 3T2) | $1$ | $0$ | |
* | 3.1228.9t12.c.a | $3$ | $ 2^{2} \cdot 307 $ | 9.3.1851804352.1 | $(C_3^2:C_3):C_2$ (as 9T12) | $0$ | $1$ |
* | 3.1228.9t12.c.b | $3$ | $ 2^{2} \cdot 307 $ | 9.3.1851804352.1 | $(C_3^2:C_3):C_2$ (as 9T12) | $0$ | $1$ |
3.376996.18t24.c.a | $3$ | $ 2^{2} \cdot 307^{2}$ | 9.3.1851804352.1 | $(C_3^2:C_3):C_2$ (as 9T12) | $0$ | $-1$ | |
3.376996.18t24.c.b | $3$ | $ 2^{2} \cdot 307^{2}$ | 9.3.1851804352.1 | $(C_3^2:C_3):C_2$ (as 9T12) | $0$ | $-1$ |