Normalized defining polynomial
\( x^{9} - 63x^{7} + 1323x^{5} - 10290x^{3} + 21609x - 5831 \)
Invariants
Degree: | $9$ | sage: K.degree()
gp: poldegree(K.pol)
magma: Degree(K);
oscar: degree(K)
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Signature: | $[9, 0]$ | sage: K.signature()
gp: K.sign
magma: Signature(K);
oscar: signature(K)
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Discriminant: | \(3691950281939241\) \(\medspace = 3^{22}\cdot 7^{6}\) | sage: K.disc()
gp: K.disc
magma: OK := Integers(K); Discriminant(OK);
oscar: OK = ring_of_integers(K); discriminant(OK)
| |
Root discriminant: | \(53.67\) | 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: | $3^{22/9}7^{2/3}\approx 53.665489341339345$ | ||
Ramified primes: | \(3\), \(7\) | sage: K.disc().support()
gp: factor(abs(K.disc))[,1]~
magma: PrimeDivisors(Discriminant(OK));
oscar: prime_divisors(discriminant((OK)))
| |
Discriminant root field: | \(\Q\) | ||
$\card{ \Gal(K/\Q) }$: | $9$ | sage: K.automorphisms()
magma: Automorphisms(K);
oscar: automorphisms(K)
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This field is Galois and abelian over $\Q$. | |||
Conductor: | \(189=3^{3}\cdot 7\) | ||
Dirichlet character group: | $\lbrace$$\chi_{189}(64,·)$, $\chi_{189}(1,·)$, $\chi_{189}(184,·)$, $\chi_{189}(25,·)$, $\chi_{189}(151,·)$, $\chi_{189}(88,·)$, $\chi_{189}(121,·)$, $\chi_{189}(58,·)$, $\chi_{189}(127,·)$$\rbrace$ | ||
This is not a CM field. |
Integral basis (with respect to field generator \(a\))
$1$, $a$, $a^{2}$, $\frac{1}{7}a^{3}$, $\frac{1}{7}a^{4}$, $\frac{1}{133}a^{5}-\frac{8}{133}a^{4}+\frac{3}{133}a^{3}-\frac{6}{19}a^{2}-\frac{3}{19}a+\frac{2}{19}$, $\frac{1}{931}a^{6}-\frac{6}{133}a^{4}-\frac{8}{133}a^{3}+\frac{9}{19}a^{2}+\frac{5}{19}a+\frac{5}{19}$, $\frac{1}{931}a^{7}+\frac{1}{133}a^{4}+\frac{5}{133}a^{3}+\frac{7}{19}a^{2}+\frac{6}{19}a-\frac{7}{19}$, $\frac{1}{931}a^{8}-\frac{6}{133}a^{4}+\frac{8}{133}a^{3}-\frac{7}{19}a^{2}-\frac{4}{19}a-\frac{2}{19}$
Monogenic: | Not computed | |
Index: | $1$ | |
Inessential primes: | None |
Class group and class number
$C_{3}$, which has order $3$
Unit group
Rank: | $8$ | 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: | $\frac{2}{931}a^{6}-\frac{12}{133}a^{4}+\frac{3}{133}a^{3}+\frac{18}{19}a^{2}-\frac{9}{19}a-\frac{9}{19}$, $\frac{1}{931}a^{6}-\frac{6}{133}a^{4}-\frac{8}{133}a^{3}+\frac{9}{19}a^{2}+\frac{24}{19}a+\frac{5}{19}$, $\frac{2}{931}a^{7}+\frac{2}{931}a^{6}-\frac{12}{133}a^{5}-\frac{9}{133}a^{4}+\frac{129}{133}a^{3}+\frac{9}{19}a^{2}-\frac{37}{19}a+\frac{10}{19}$, $\frac{1}{931}a^{7}+\frac{2}{931}a^{6}-\frac{10}{133}a^{5}-\frac{1}{19}a^{4}+\frac{206}{133}a^{3}-\frac{10}{19}a^{2}-\frac{163}{19}a+\frac{192}{19}$, $\frac{1}{931}a^{8}-\frac{55}{931}a^{6}+\frac{1}{133}a^{5}+\frac{18}{19}a^{4}-\frac{43}{133}a^{3}-\frac{71}{19}a^{2}+\frac{60}{19}a+\frac{10}{19}$, $\frac{1}{931}a^{8}-\frac{3}{49}a^{6}-\frac{2}{133}a^{5}+\frac{143}{133}a^{4}+\frac{78}{133}a^{3}-\frac{109}{19}a^{2}-\frac{112}{19}a+\frac{32}{19}$, $\frac{1}{931}a^{8}+\frac{3}{931}a^{7}-\frac{40}{931}a^{6}-\frac{15}{133}a^{5}+\frac{72}{133}a^{4}+\frac{146}{133}a^{3}-\frac{47}{19}a^{2}-\frac{46}{19}a+\frac{89}{19}$, $\frac{1}{931}a^{8}+\frac{4}{931}a^{7}-\frac{44}{931}a^{6}-\frac{23}{133}a^{5}+\frac{85}{133}a^{4}+\frac{39}{19}a^{3}-\frac{47}{19}a^{2}-\frac{112}{19}a+\frac{46}{19}$ | 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: | \( 40597.2195867 \) | sage: K.regulator()
gp: K.reg
magma: Regulator(K);
oscar: regulator(K)
|
Class number formula
\[ \begin{aligned}\lim_{s\to 1} (s-1)\zeta_K(s) =\mathstrut & \frac{2^{r_1}\cdot (2\pi)^{r_2}\cdot R\cdot h}{w\cdot\sqrt{|D|}}\cr \approx\mathstrut &\frac{2^{9}\cdot(2\pi)^{0}\cdot 40597.2195867 \cdot 3}{2\cdot\sqrt{3691950281939241}}\cr\approx \mathstrut & 0.513132578690 \end{aligned}\]
Galois group
A cyclic group of order 9 |
The 9 conjugacy class representatives for $C_9$ |
Character table for $C_9$ |
Intermediate fields
\(\Q(\zeta_{9})^+\) |
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 | ${\href{/padicField/2.9.0.1}{9} }$ | R | ${\href{/padicField/5.9.0.1}{9} }$ | R | ${\href{/padicField/11.9.0.1}{9} }$ | ${\href{/padicField/13.9.0.1}{9} }$ | ${\href{/padicField/17.1.0.1}{1} }^{9}$ | ${\href{/padicField/19.1.0.1}{1} }^{9}$ | ${\href{/padicField/23.9.0.1}{9} }$ | ${\href{/padicField/29.9.0.1}{9} }$ | ${\href{/padicField/31.9.0.1}{9} }$ | ${\href{/padicField/37.3.0.1}{3} }^{3}$ | ${\href{/padicField/41.9.0.1}{9} }$ | ${\href{/padicField/43.9.0.1}{9} }$ | ${\href{/padicField/47.9.0.1}{9} }$ | ${\href{/padicField/53.3.0.1}{3} }^{3}$ | ${\href{/padicField/59.9.0.1}{9} }$ |
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 |
---|---|---|---|---|---|---|---|
\(3\) | 3.9.22.6 | $x^{9} + 18 x^{8} + 9 x^{7} + 6 x^{6} + 18 x^{5} + 57$ | $9$ | $1$ | $22$ | $C_9$ | $[2, 3]$ |
\(7\) | 7.9.6.3 | $x^{9} - 42 x^{6} - 1372$ | $3$ | $3$ | $6$ | $C_9$ | $[\ ]_{3}^{3}$ |
Artin representations
Label | Dimension | Conductor | Artin stem field | $G$ | Ind | $\chi(c)$ | |
---|---|---|---|---|---|---|---|
* | 1.1.1t1.a.a | $1$ | $1$ | \(\Q\) | $C_1$ | $1$ | $1$ |
* | 1.189.9t1.b.a | $1$ | $ 3^{3} \cdot 7 $ | 9.9.3691950281939241.2 | $C_9$ (as 9T1) | $0$ | $1$ |
* | 1.189.9t1.b.b | $1$ | $ 3^{3} \cdot 7 $ | 9.9.3691950281939241.2 | $C_9$ (as 9T1) | $0$ | $1$ |
* | 1.9.3t1.a.a | $1$ | $ 3^{2}$ | \(\Q(\zeta_{9})^+\) | $C_3$ (as 3T1) | $0$ | $1$ |
* | 1.189.9t1.b.c | $1$ | $ 3^{3} \cdot 7 $ | 9.9.3691950281939241.2 | $C_9$ (as 9T1) | $0$ | $1$ |
* | 1.189.9t1.b.d | $1$ | $ 3^{3} \cdot 7 $ | 9.9.3691950281939241.2 | $C_9$ (as 9T1) | $0$ | $1$ |
* | 1.9.3t1.a.b | $1$ | $ 3^{2}$ | \(\Q(\zeta_{9})^+\) | $C_3$ (as 3T1) | $0$ | $1$ |
* | 1.189.9t1.b.e | $1$ | $ 3^{3} \cdot 7 $ | 9.9.3691950281939241.2 | $C_9$ (as 9T1) | $0$ | $1$ |
* | 1.189.9t1.b.f | $1$ | $ 3^{3} \cdot 7 $ | 9.9.3691950281939241.2 | $C_9$ (as 9T1) | $0$ | $1$ |