Normalized defining polynomial
\( x^{42} - 43 x^{40} + 860 x^{38} - 10621 x^{36} + 90687 x^{34} - 567987 x^{32} + 2701776 x^{30} + \cdots - 43 \)
Invariants
Degree: | $42$ | sage: K.degree()
gp: poldegree(K.pol)
magma: Degree(K);
oscar: degree(K)
| |
Signature: | $[42, 0]$ | sage: K.signature()
gp: K.sign
magma: Signature(K);
oscar: signature(K)
| |
Discriminant: | \(41254041074227118944013302420247071185885898029927512658248841159725538158313472\) \(\medspace = 2^{42}\cdot 43^{41}\) | sage: K.disc()
gp: K.disc
magma: OK := Integers(K); Discriminant(OK);
oscar: OK = ring_of_integers(K); discriminant(OK)
| |
Root discriminant: | \(78.63\) | 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: | $2\cdot 43^{41/42}\approx 78.63327159054276$ | ||
Ramified primes: | \(2\), \(43\) | sage: K.disc().support()
gp: factor(abs(K.disc))[,1]~
magma: PrimeDivisors(Discriminant(OK));
oscar: prime_divisors(discriminant((OK)))
| |
Discriminant root field: | \(\Q(\sqrt{43}) \) | ||
$\card{ \Gal(K/\Q) }$: | $42$ | sage: K.automorphisms()
magma: Automorphisms(K);
oscar: automorphisms(K)
| |
This field is Galois and abelian over $\Q$. | |||
Conductor: | \(172=2^{2}\cdot 43\) | ||
Dirichlet character group: | $\lbrace$$\chi_{172}(1,·)$, $\chi_{172}(3,·)$, $\chi_{172}(133,·)$, $\chi_{172}(7,·)$, $\chi_{172}(9,·)$, $\chi_{172}(13,·)$, $\chi_{172}(115,·)$, $\chi_{172}(17,·)$, $\chi_{172}(19,·)$, $\chi_{172}(21,·)$, $\chi_{172}(151,·)$, $\chi_{172}(25,·)$, $\chi_{172}(155,·)$, $\chi_{172}(159,·)$, $\chi_{172}(27,·)$, $\chi_{172}(165,·)$, $\chi_{172}(39,·)$, $\chi_{172}(41,·)$, $\chi_{172}(171,·)$, $\chi_{172}(49,·)$, $\chi_{172}(51,·)$, $\chi_{172}(53,·)$, $\chi_{172}(55,·)$, $\chi_{172}(57,·)$, $\chi_{172}(63,·)$, $\chi_{172}(71,·)$, $\chi_{172}(75,·)$, $\chi_{172}(81,·)$, $\chi_{172}(163,·)$, $\chi_{172}(169,·)$, $\chi_{172}(91,·)$, $\chi_{172}(97,·)$, $\chi_{172}(131,·)$, $\chi_{172}(101,·)$, $\chi_{172}(145,·)$, $\chi_{172}(109,·)$, $\chi_{172}(147,·)$, $\chi_{172}(117,·)$, $\chi_{172}(119,·)$, $\chi_{172}(153,·)$, $\chi_{172}(121,·)$, $\chi_{172}(123,·)$$\rbrace$ | ||
This is not a CM field. |
Integral basis (with respect to field generator \(a\))
$1$, $a$, $a^{2}$, $a^{3}$, $a^{4}$, $a^{5}$, $a^{6}$, $a^{7}$, $a^{8}$, $a^{9}$, $a^{10}$, $a^{11}$, $a^{12}$, $a^{13}$, $a^{14}$, $a^{15}$, $a^{16}$, $a^{17}$, $a^{18}$, $a^{19}$, $a^{20}$, $a^{21}$, $a^{22}$, $a^{23}$, $a^{24}$, $a^{25}$, $a^{26}$, $a^{27}$, $a^{28}$, $a^{29}$, $a^{30}$, $a^{31}$, $a^{32}$, $a^{33}$, $a^{34}$, $a^{35}$, $a^{36}$, $a^{37}$, $a^{38}$, $a^{39}$, $a^{40}$, $a^{41}$
Monogenic: | Yes | |
Index: | $1$ | |
Inessential primes: | None |
Class group and class number
not computed
Unit group
Rank: | $41$ | 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: | not computed | 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: | not computed | 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 $
Galois group
A cyclic group of order 42 |
The 42 conjugacy class representatives for $C_{42}$ |
Character table for $C_{42}$ |
Intermediate fields
\(\Q(\sqrt{43}) \), 3.3.1849.1, 6.6.9408540352.1, 7.7.6321363049.1, 14.14.28152039412241052225421312.1, \(\Q(\zeta_{43})^+\) |
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 | R | $21^{2}$ | $42$ | ${\href{/padicField/7.3.0.1}{3} }^{14}$ | ${\href{/padicField/11.14.0.1}{14} }^{3}$ | $21^{2}$ | $21^{2}$ | $21^{2}$ | $42$ | $42$ | $42$ | ${\href{/padicField/37.6.0.1}{6} }^{7}$ | ${\href{/padicField/41.7.0.1}{7} }^{6}$ | R | ${\href{/padicField/47.14.0.1}{14} }^{3}$ | $21^{2}$ | ${\href{/padicField/59.14.0.1}{14} }^{3}$ |
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 |
---|---|---|---|---|---|---|---|
\(2\) | 2.14.14.15 | $x^{14} + 14 x^{13} + 126 x^{12} + 784 x^{11} + 4300 x^{10} + 19592 x^{9} + 80680 x^{8} + 276608 x^{7} + 822832 x^{6} + 1982880 x^{5} + 3998112 x^{4} + 6222080 x^{3} + 7679040 x^{2} + 6275456 x + 3453824$ | $2$ | $7$ | $14$ | $C_{14}$ | $[2]^{7}$ |
2.14.14.15 | $x^{14} + 14 x^{13} + 126 x^{12} + 784 x^{11} + 4300 x^{10} + 19592 x^{9} + 80680 x^{8} + 276608 x^{7} + 822832 x^{6} + 1982880 x^{5} + 3998112 x^{4} + 6222080 x^{3} + 7679040 x^{2} + 6275456 x + 3453824$ | $2$ | $7$ | $14$ | $C_{14}$ | $[2]^{7}$ | |
2.14.14.15 | $x^{14} + 14 x^{13} + 126 x^{12} + 784 x^{11} + 4300 x^{10} + 19592 x^{9} + 80680 x^{8} + 276608 x^{7} + 822832 x^{6} + 1982880 x^{5} + 3998112 x^{4} + 6222080 x^{3} + 7679040 x^{2} + 6275456 x + 3453824$ | $2$ | $7$ | $14$ | $C_{14}$ | $[2]^{7}$ | |
\(43\) | Deg $42$ | $42$ | $1$ | $41$ |