Normalized defining polynomial
\( x^{16} - 2 x^{14} - 2 x^{13} + 57 x^{12} + 12 x^{11} + 171 x^{10} + 128 x^{9} + 1436 x^{8} + \cdots + 42947 \)
Invariants
Degree: | $16$ | sage: K.degree()
gp: poldegree(K.pol)
magma: Degree(K);
oscar: degree(K)
| |
Signature: | $[0, 8]$ | sage: K.signature()
gp: K.sign
magma: Signature(K);
oscar: signature(K)
| |
Discriminant: |
\(33378638618235270076563456\)
\(\medspace = 2^{24}\cdot 3^{4}\cdot 89^{2}\cdot 1327^{4}\)
| sage: K.disc()
gp: K.disc
magma: OK := Integers(K); Discriminant(OK);
oscar: OK = ring_of_integers(K); discriminant(OK)
| |
Root discriminant: | \(39.37\) | 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: | $2^{3/2}3^{1/2}89^{1/2}1327^{1/2}\approx 1683.5890234852448$ | ||
Ramified primes: |
\(2\), \(3\), \(89\), \(1327\)
| sage: K.disc().support()
gp: factor(abs(K.disc))[,1]~
magma: PrimeDivisors(Discriminant(OK));
oscar: prime_divisors(discriminant((OK)))
| |
Discriminant root field: | \(\Q\) | ||
$\card{ \Aut(K/\Q) }$: | $4$ | sage: K.automorphisms()
magma: Automorphisms(K);
oscar: automorphisms(K)
| |
This field is not Galois over $\Q$. | |||
This is a CM field. | |||
Reflex fields: | unavailable$^{128}$ |
Integral basis (with respect to field generator \(a\))
$1$, $a$, $a^{2}$, $a^{3}$, $a^{4}$, $a^{5}$, $a^{6}$, $a^{7}$, $a^{8}$, $a^{9}$, $a^{10}$, $a^{11}$, $\frac{1}{4}a^{12}-\frac{1}{2}a^{11}-\frac{1}{4}a^{10}+\frac{1}{4}a^{8}-\frac{1}{2}a^{7}-\frac{1}{4}a^{6}-\frac{1}{2}a^{5}-\frac{1}{2}a^{3}+\frac{1}{4}$, $\frac{1}{4}a^{13}-\frac{1}{4}a^{11}-\frac{1}{2}a^{10}+\frac{1}{4}a^{9}-\frac{1}{4}a^{7}-\frac{1}{2}a^{4}+\frac{1}{4}a-\frac{1}{2}$, $\frac{1}{4}a^{14}-\frac{1}{2}a^{7}-\frac{1}{4}a^{6}-\frac{1}{2}a^{3}+\frac{1}{4}a^{2}-\frac{1}{2}a+\frac{1}{4}$, $\frac{1}{73\!\cdots\!68}a^{15}+\frac{22\!\cdots\!72}{18\!\cdots\!17}a^{14}-\frac{18\!\cdots\!41}{36\!\cdots\!34}a^{13}-\frac{19\!\cdots\!49}{18\!\cdots\!17}a^{12}+\frac{15\!\cdots\!37}{36\!\cdots\!34}a^{11}+\frac{76\!\cdots\!23}{18\!\cdots\!17}a^{10}-\frac{37\!\cdots\!35}{36\!\cdots\!34}a^{9}-\frac{27\!\cdots\!27}{36\!\cdots\!34}a^{8}-\frac{10\!\cdots\!19}{73\!\cdots\!68}a^{7}-\frac{83\!\cdots\!08}{18\!\cdots\!17}a^{6}+\frac{32\!\cdots\!43}{18\!\cdots\!17}a^{5}+\frac{12\!\cdots\!77}{36\!\cdots\!34}a^{4}+\frac{28\!\cdots\!17}{73\!\cdots\!68}a^{3}+\frac{77\!\cdots\!25}{36\!\cdots\!34}a^{2}+\frac{34\!\cdots\!51}{73\!\cdots\!68}a-\frac{27\!\cdots\!42}{18\!\cdots\!17}$
Monogenic: | Not computed | |
Index: | $1$ | |
Inessential primes: | None |
Class group and class number
$C_{140}$, which has order $140$ (assuming GRH)
Unit group
Rank: | $7$ | 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: |
$\frac{51\!\cdots\!89}{31\!\cdots\!12}a^{15}-\frac{18\!\cdots\!83}{78\!\cdots\!53}a^{14}-\frac{13\!\cdots\!63}{78\!\cdots\!53}a^{13}+\frac{10\!\cdots\!29}{31\!\cdots\!12}a^{12}-\frac{31\!\cdots\!81}{15\!\cdots\!06}a^{11}-\frac{26\!\cdots\!45}{31\!\cdots\!12}a^{10}-\frac{12\!\cdots\!32}{78\!\cdots\!53}a^{9}-\frac{59\!\cdots\!97}{31\!\cdots\!12}a^{8}-\frac{82\!\cdots\!25}{31\!\cdots\!12}a^{7}+\frac{84\!\cdots\!71}{31\!\cdots\!12}a^{6}-\frac{38\!\cdots\!25}{15\!\cdots\!06}a^{5}+\frac{10\!\cdots\!23}{15\!\cdots\!06}a^{4}-\frac{17\!\cdots\!27}{31\!\cdots\!12}a^{3}+\frac{72\!\cdots\!41}{15\!\cdots\!06}a^{2}-\frac{14\!\cdots\!37}{31\!\cdots\!12}a+\frac{29\!\cdots\!57}{31\!\cdots\!12}$, $\frac{92\!\cdots\!99}{73\!\cdots\!68}a^{15}+\frac{20\!\cdots\!21}{18\!\cdots\!17}a^{14}-\frac{43\!\cdots\!52}{18\!\cdots\!17}a^{13}-\frac{47\!\cdots\!79}{73\!\cdots\!68}a^{12}+\frac{21\!\cdots\!97}{36\!\cdots\!34}a^{11}+\frac{54\!\cdots\!75}{73\!\cdots\!68}a^{10}+\frac{47\!\cdots\!93}{18\!\cdots\!17}a^{9}+\frac{23\!\cdots\!43}{73\!\cdots\!68}a^{8}+\frac{11\!\cdots\!47}{73\!\cdots\!68}a^{7}+\frac{11\!\cdots\!59}{73\!\cdots\!68}a^{6}+\frac{21\!\cdots\!55}{36\!\cdots\!34}a^{5}+\frac{13\!\cdots\!41}{36\!\cdots\!34}a^{4}+\frac{12\!\cdots\!97}{73\!\cdots\!68}a^{3}+\frac{11\!\cdots\!23}{36\!\cdots\!34}a^{2}+\frac{12\!\cdots\!87}{73\!\cdots\!68}a-\frac{34\!\cdots\!39}{73\!\cdots\!68}$, $\frac{35\!\cdots\!69}{18\!\cdots\!17}a^{15}-\frac{22\!\cdots\!73}{36\!\cdots\!34}a^{14}-\frac{10\!\cdots\!71}{36\!\cdots\!34}a^{13}-\frac{14\!\cdots\!35}{36\!\cdots\!34}a^{12}+\frac{40\!\cdots\!01}{36\!\cdots\!34}a^{11}+\frac{64\!\cdots\!37}{36\!\cdots\!34}a^{10}+\frac{14\!\cdots\!29}{36\!\cdots\!34}a^{9}+\frac{88\!\cdots\!99}{36\!\cdots\!34}a^{8}+\frac{11\!\cdots\!05}{36\!\cdots\!34}a^{7}+\frac{24\!\cdots\!12}{18\!\cdots\!17}a^{6}+\frac{24\!\cdots\!61}{18\!\cdots\!17}a^{5}+\frac{45\!\cdots\!46}{18\!\cdots\!17}a^{4}+\frac{87\!\cdots\!55}{18\!\cdots\!17}a^{3}+\frac{12\!\cdots\!69}{36\!\cdots\!34}a^{2}+\frac{20\!\cdots\!45}{36\!\cdots\!34}a+\frac{84\!\cdots\!01}{18\!\cdots\!17}$, $\frac{78\!\cdots\!15}{73\!\cdots\!68}a^{15}+\frac{30\!\cdots\!23}{73\!\cdots\!68}a^{14}-\frac{37\!\cdots\!19}{73\!\cdots\!68}a^{13}-\frac{93\!\cdots\!73}{36\!\cdots\!34}a^{12}+\frac{49\!\cdots\!71}{73\!\cdots\!68}a^{11}+\frac{75\!\cdots\!40}{18\!\cdots\!17}a^{10}+\frac{40\!\cdots\!25}{73\!\cdots\!68}a^{9}+\frac{33\!\cdots\!08}{18\!\cdots\!17}a^{8}+\frac{48\!\cdots\!81}{36\!\cdots\!34}a^{7}+\frac{64\!\cdots\!87}{73\!\cdots\!68}a^{6}+\frac{40\!\cdots\!83}{18\!\cdots\!17}a^{5}+\frac{30\!\cdots\!59}{18\!\cdots\!17}a^{4}+\frac{64\!\cdots\!45}{73\!\cdots\!68}a^{3}+\frac{30\!\cdots\!69}{73\!\cdots\!68}a^{2}+\frac{40\!\cdots\!95}{36\!\cdots\!34}a+\frac{78\!\cdots\!67}{73\!\cdots\!68}$, $\frac{28\!\cdots\!81}{36\!\cdots\!34}a^{15}+\frac{45\!\cdots\!54}{18\!\cdots\!17}a^{14}-\frac{42\!\cdots\!12}{18\!\cdots\!17}a^{13}-\frac{69\!\cdots\!41}{36\!\cdots\!34}a^{12}+\frac{38\!\cdots\!11}{18\!\cdots\!17}a^{11}+\frac{70\!\cdots\!81}{36\!\cdots\!34}a^{10}-\frac{26\!\cdots\!38}{18\!\cdots\!17}a^{9}+\frac{11\!\cdots\!51}{36\!\cdots\!34}a^{8}+\frac{14\!\cdots\!41}{36\!\cdots\!34}a^{7}+\frac{16\!\cdots\!97}{36\!\cdots\!34}a^{6}-\frac{93\!\cdots\!51}{18\!\cdots\!17}a^{5}+\frac{58\!\cdots\!81}{18\!\cdots\!17}a^{4}+\frac{40\!\cdots\!23}{36\!\cdots\!34}a^{3}+\frac{19\!\cdots\!11}{18\!\cdots\!17}a^{2}+\frac{11\!\cdots\!33}{36\!\cdots\!34}a+\frac{79\!\cdots\!03}{36\!\cdots\!34}$, $\frac{51\!\cdots\!89}{31\!\cdots\!12}a^{15}+\frac{18\!\cdots\!83}{78\!\cdots\!53}a^{14}+\frac{13\!\cdots\!63}{78\!\cdots\!53}a^{13}-\frac{10\!\cdots\!29}{31\!\cdots\!12}a^{12}+\frac{31\!\cdots\!81}{15\!\cdots\!06}a^{11}+\frac{26\!\cdots\!45}{31\!\cdots\!12}a^{10}+\frac{12\!\cdots\!32}{78\!\cdots\!53}a^{9}+\frac{59\!\cdots\!97}{31\!\cdots\!12}a^{8}+\frac{82\!\cdots\!25}{31\!\cdots\!12}a^{7}-\frac{84\!\cdots\!71}{31\!\cdots\!12}a^{6}+\frac{38\!\cdots\!25}{15\!\cdots\!06}a^{5}-\frac{10\!\cdots\!23}{15\!\cdots\!06}a^{4}+\frac{17\!\cdots\!27}{31\!\cdots\!12}a^{3}-\frac{72\!\cdots\!41}{15\!\cdots\!06}a^{2}+\frac{14\!\cdots\!37}{31\!\cdots\!12}a+\frac{22\!\cdots\!55}{31\!\cdots\!12}$, $\frac{10\!\cdots\!20}{18\!\cdots\!17}a^{15}+\frac{70\!\cdots\!23}{73\!\cdots\!68}a^{14}+\frac{14\!\cdots\!49}{73\!\cdots\!68}a^{13}-\frac{18\!\cdots\!43}{73\!\cdots\!68}a^{12}-\frac{25\!\cdots\!03}{73\!\cdots\!68}a^{11}+\frac{30\!\cdots\!41}{73\!\cdots\!68}a^{10}-\frac{27\!\cdots\!67}{73\!\cdots\!68}a^{9}+\frac{41\!\cdots\!85}{73\!\cdots\!68}a^{8}-\frac{39\!\cdots\!09}{73\!\cdots\!68}a^{7}+\frac{90\!\cdots\!42}{18\!\cdots\!17}a^{6}-\frac{49\!\cdots\!61}{36\!\cdots\!34}a^{5}+\frac{15\!\cdots\!15}{36\!\cdots\!34}a^{4}-\frac{12\!\cdots\!18}{18\!\cdots\!17}a^{3}+\frac{62\!\cdots\!15}{73\!\cdots\!68}a^{2}-\frac{65\!\cdots\!81}{73\!\cdots\!68}a+\frac{89\!\cdots\!99}{36\!\cdots\!34}$
| 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: | \( 7729.95963966061 \) (assuming GRH) | sage: K.regulator()
gp: K.reg
magma: Regulator(K);
oscar: regulator(K)
|
Class number formula
\[ \begin{aligned}\lim_{s\to 1} (s-1)\zeta_K(s) =\mathstrut & \frac{2^{r_1}\cdot (2\pi)^{r_2}\cdot R\cdot h}{w\cdot\sqrt{|D|}}\cr \approx\mathstrut &\frac{2^{0}\cdot(2\pi)^{8}\cdot 7729.95963966061 \cdot 140}{2\cdot\sqrt{33378638618235270076563456}}\cr\approx \mathstrut & 0.227499215529261 \end{aligned}\] (assuming GRH)
Galois group
$C_2^5:S_4$ (as 16T1045):
A solvable group of order 768 |
The 40 conjugacy class representatives for $C_2^5:S_4$ |
Character table for $C_2^5:S_4$ |
Intermediate fields
\(\Q(\sqrt{-2}) \), 4.4.3981.1, 8.0.5777424912384.1, 8.8.1410504129.1, 8.0.64914886656.1 |
Fields in the database are given up to isomorphism. Isomorphic intermediate fields are shown with their multiplicities.
Sibling fields
Degree 16 siblings: | data not computed |
Degree 32 siblings: | data not computed |
Minimal sibling: | This field is its own minimal sibling |
Frobenius cycle types
$p$ | $2$ | $3$ | $5$ | $7$ | $11$ | $13$ | $17$ | $19$ | $23$ | $29$ | $31$ | $37$ | $41$ | $43$ | $47$ | $53$ | $59$ |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Cycle type | R | R | ${\href{/padicField/5.6.0.1}{6} }^{2}{,}\,{\href{/padicField/5.2.0.1}{2} }^{2}$ | ${\href{/padicField/7.8.0.1}{8} }^{2}$ | ${\href{/padicField/11.4.0.1}{4} }^{4}$ | ${\href{/padicField/13.6.0.1}{6} }^{2}{,}\,{\href{/padicField/13.2.0.1}{2} }^{2}$ | ${\href{/padicField/17.4.0.1}{4} }^{4}$ | ${\href{/padicField/19.8.0.1}{8} }^{2}$ | ${\href{/padicField/23.6.0.1}{6} }^{2}{,}\,{\href{/padicField/23.2.0.1}{2} }^{2}$ | ${\href{/padicField/29.8.0.1}{8} }^{2}$ | ${\href{/padicField/31.8.0.1}{8} }^{2}$ | ${\href{/padicField/37.4.0.1}{4} }^{2}{,}\,{\href{/padicField/37.2.0.1}{2} }^{4}$ | ${\href{/padicField/41.3.0.1}{3} }^{4}{,}\,{\href{/padicField/41.2.0.1}{2} }^{2}$ | ${\href{/padicField/43.3.0.1}{3} }^{4}{,}\,{\href{/padicField/43.2.0.1}{2} }^{2}$ | ${\href{/padicField/47.4.0.1}{4} }^{4}$ | ${\href{/padicField/53.6.0.1}{6} }^{2}{,}\,{\href{/padicField/53.2.0.1}{2} }^{2}$ | ${\href{/padicField/59.3.0.1}{3} }^{4}{,}\,{\href{/padicField/59.2.0.1}{2} }^{2}$ |
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 |
---|---|---|---|---|---|---|---|
\(2\)
| 2.8.12.2 | $x^{8} + 16 x^{7} + 120 x^{6} + 546 x^{5} + 1646 x^{4} + 3352 x^{3} + 4457 x^{2} + 3470 x + 1203$ | $2$ | $4$ | $12$ | $C_4\times C_2$ | $[3]^{4}$ |
2.8.12.2 | $x^{8} + 16 x^{7} + 120 x^{6} + 546 x^{5} + 1646 x^{4} + 3352 x^{3} + 4457 x^{2} + 3470 x + 1203$ | $2$ | $4$ | $12$ | $C_4\times C_2$ | $[3]^{4}$ | |
\(3\)
| 3.4.2.1 | $x^{4} + 4 x^{3} + 14 x^{2} + 20 x + 13$ | $2$ | $2$ | $2$ | $C_2^2$ | $[\ ]_{2}^{2}$ |
3.4.0.1 | $x^{4} + 2 x^{3} + 2$ | $1$ | $4$ | $0$ | $C_4$ | $[\ ]^{4}$ | |
3.4.2.1 | $x^{4} + 4 x^{3} + 14 x^{2} + 20 x + 13$ | $2$ | $2$ | $2$ | $C_2^2$ | $[\ ]_{2}^{2}$ | |
3.4.0.1 | $x^{4} + 2 x^{3} + 2$ | $1$ | $4$ | $0$ | $C_4$ | $[\ ]^{4}$ | |
\(89\)
| 89.2.1.1 | $x^{2} + 89$ | $2$ | $1$ | $1$ | $C_2$ | $[\ ]_{2}$ |
89.2.1.1 | $x^{2} + 89$ | $2$ | $1$ | $1$ | $C_2$ | $[\ ]_{2}$ | |
89.2.0.1 | $x^{2} + 82 x + 3$ | $1$ | $2$ | $0$ | $C_2$ | $[\ ]^{2}$ | |
89.2.0.1 | $x^{2} + 82 x + 3$ | $1$ | $2$ | $0$ | $C_2$ | $[\ ]^{2}$ | |
89.4.0.1 | $x^{4} + 4 x^{2} + 72 x + 3$ | $1$ | $4$ | $0$ | $C_4$ | $[\ ]^{4}$ | |
89.4.0.1 | $x^{4} + 4 x^{2} + 72 x + 3$ | $1$ | $4$ | $0$ | $C_4$ | $[\ ]^{4}$ | |
\(1327\)
| Deg $2$ | $1$ | $2$ | $0$ | $C_2$ | $[\ ]^{2}$ | |
Deg $2$ | $1$ | $2$ | $0$ | $C_2$ | $[\ ]^{2}$ | ||
Deg $2$ | $1$ | $2$ | $0$ | $C_2$ | $[\ ]^{2}$ | ||
Deg $2$ | $1$ | $2$ | $0$ | $C_2$ | $[\ ]^{2}$ | ||
Deg $4$ | $2$ | $2$ | $2$ | ||||
Deg $4$ | $2$ | $2$ | $2$ |