Normalized defining polynomial
\( x^{20} - 8x^{16} - 22x^{14} - 6x^{12} + 22x^{10} + 33x^{8} - 22x^{6} + 19x^{4} - 2x^{2} + 1 \)
Invariants
Degree: | $20$ | sage: K.degree()
gp: poldegree(K.pol)
magma: Degree(K);
oscar: degree(K)
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Signature: | $[4, 8]$ | sage: K.signature()
gp: K.sign
magma: Signature(K);
oscar: signature(K)
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Discriminant: | \(436011848767111570653184\) \(\medspace = 2^{30}\cdot 67^{8}\) | sage: K.disc()
gp: K.disc
magma: OK := Integers(K); Discriminant(OK);
oscar: OK = ring_of_integers(K); discriminant(OK)
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Root discriminant: | \(15.20\) | 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))
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Galois root discriminant: | $2^{3/2}67^{1/2}\approx 23.15167380558045$ | ||
Ramified primes: | \(2\), \(67\) | sage: K.disc().support()
gp: factor(abs(K.disc))[,1]~
magma: PrimeDivisors(Discriminant(OK));
oscar: prime_divisors(discriminant((OK)))
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Discriminant root field: | \(\Q\) | ||
$\card{ \Aut(K/\Q) }$: | $2$ | sage: K.automorphisms()
magma: Automorphisms(K);
oscar: automorphisms(K)
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This field is not Galois over $\Q$. | |||
This is not a CM field. |
Integral basis (with respect to field generator \(a\))
$1$, $a$, $a^{2}$, $a^{3}$, $a^{4}$, $a^{5}$, $a^{6}$, $a^{7}$, $\frac{1}{2}a^{8}-\frac{1}{2}a^{6}-\frac{1}{2}a^{4}-\frac{1}{2}$, $\frac{1}{2}a^{9}-\frac{1}{2}a^{7}-\frac{1}{2}a^{5}-\frac{1}{2}a$, $\frac{1}{2}a^{10}-\frac{1}{2}a^{4}-\frac{1}{2}a^{2}-\frac{1}{2}$, $\frac{1}{2}a^{11}-\frac{1}{2}a^{5}-\frac{1}{2}a^{3}-\frac{1}{2}a$, $\frac{1}{4}a^{12}-\frac{1}{4}a^{11}-\frac{1}{4}a^{9}-\frac{1}{4}a^{8}-\frac{1}{4}a^{7}-\frac{1}{2}a^{5}-\frac{1}{2}a^{4}-\frac{1}{4}a^{3}+\frac{1}{4}a^{2}-\frac{1}{4}$, $\frac{1}{4}a^{13}-\frac{1}{4}a^{11}-\frac{1}{4}a^{10}+\frac{1}{4}a^{7}-\frac{1}{2}a^{5}-\frac{1}{4}a^{4}+\frac{1}{4}a^{2}+\frac{1}{4}a+\frac{1}{4}$, $\frac{1}{4}a^{14}-\frac{1}{4}a^{9}-\frac{1}{4}a^{7}-\frac{1}{2}a^{6}-\frac{1}{4}a^{5}-\frac{1}{2}a^{4}-\frac{1}{2}a^{3}-\frac{1}{2}a^{2}-\frac{1}{4}a-\frac{1}{4}$, $\frac{1}{4}a^{15}-\frac{1}{4}a^{10}-\frac{1}{4}a^{8}-\frac{1}{2}a^{7}-\frac{1}{4}a^{6}-\frac{1}{2}a^{5}-\frac{1}{2}a^{4}-\frac{1}{2}a^{3}-\frac{1}{4}a^{2}-\frac{1}{4}a$, $\frac{1}{16}a^{16}-\frac{1}{8}a^{14}-\frac{1}{16}a^{12}-\frac{1}{4}a^{11}-\frac{1}{8}a^{10}-\frac{1}{4}a^{9}-\frac{1}{16}a^{8}+\frac{1}{4}a^{7}-\frac{3}{8}a^{6}-\frac{1}{2}a^{5}-\frac{3}{8}a^{4}+\frac{1}{4}a^{3}-\frac{1}{2}a^{2}-\frac{1}{2}a+\frac{5}{16}$, $\frac{1}{16}a^{17}-\frac{1}{8}a^{15}-\frac{1}{16}a^{13}+\frac{1}{8}a^{11}-\frac{1}{4}a^{10}+\frac{3}{16}a^{9}-\frac{1}{8}a^{7}-\frac{1}{2}a^{6}+\frac{1}{8}a^{5}-\frac{1}{4}a^{4}-\frac{1}{4}a^{3}-\frac{1}{4}a^{2}+\frac{5}{16}a-\frac{1}{4}$, $\frac{1}{18208}a^{18}-\frac{315}{18208}a^{16}+\frac{1349}{18208}a^{14}-\frac{1621}{18208}a^{12}-\frac{1491}{18208}a^{10}+\frac{831}{18208}a^{8}-\frac{1}{2}a^{7}-\frac{1137}{2276}a^{6}-\frac{3547}{9104}a^{4}-\frac{1}{2}a^{3}+\frac{8701}{18208}a^{2}-\frac{1}{2}a+\frac{8591}{18208}$, $\frac{1}{36416}a^{19}-\frac{1}{36416}a^{18}+\frac{823}{36416}a^{17}-\frac{823}{36416}a^{16}-\frac{927}{36416}a^{15}+\frac{927}{36416}a^{14}+\frac{1793}{36416}a^{13}-\frac{1793}{36416}a^{12}+\frac{5337}{36416}a^{11}-\frac{5337}{36416}a^{10}-\frac{4859}{36416}a^{9}-\frac{4245}{36416}a^{8}-\frac{3981}{9104}a^{7}+\frac{1705}{9104}a^{6}+\frac{2143}{18208}a^{5}-\frac{6695}{18208}a^{4}-\frac{4955}{36416}a^{3}-\frac{13253}{36416}a^{2}+\frac{625}{36416}a-\frac{9729}{36416}$
Monogenic: | Not computed | |
Index: | $1$ | |
Inessential primes: | None |
Class group and class number
Trivial group, which has order $1$
Unit group
Rank: | $11$ | sage: UK.rank()
gp: K.fu
magma: UnitRank(K);
oscar: rank(UK)
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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)
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Fundamental units: | $a$, $\frac{477}{4552}a^{19}+\frac{1231}{18208}a^{18}-\frac{76}{569}a^{17}-\frac{845}{18208}a^{16}-\frac{4049}{4552}a^{15}-\frac{9965}{18208}a^{14}-\frac{1409}{1138}a^{13}-\frac{19883}{18208}a^{12}+\frac{12561}{4552}a^{11}+\frac{12691}{18208}a^{10}+\frac{4785}{1138}a^{9}+\frac{30625}{18208}a^{8}+\frac{1339}{2276}a^{7}+\frac{1231}{2276}a^{6}-\frac{19059}{2276}a^{5}-\frac{32853}{9104}a^{4}+\frac{13747}{4552}a^{3}+\frac{45595}{18208}a^{2}-\frac{644}{569}a+\frac{1225}{18208}$, $\frac{2881}{18208}a^{19}-\frac{2675}{9104}a^{18}-\frac{1667}{18208}a^{17}+\frac{505}{9104}a^{16}-\frac{23699}{18208}a^{15}+\frac{21645}{9104}a^{14}-\frac{49821}{18208}a^{13}+\frac{55019}{9104}a^{12}+\frac{24277}{18208}a^{11}+\frac{3149}{9104}a^{10}+\frac{86247}{18208}a^{9}-\frac{69829}{9104}a^{8}+\frac{7433}{2276}a^{7}-\frac{20713}{2276}a^{6}-\frac{65671}{9104}a^{5}+\frac{40549}{4552}a^{4}+\frac{72549}{18208}a^{3}-\frac{46319}{9104}a^{2}-\frac{7657}{18208}a+\frac{6675}{9104}$, $\frac{477}{4552}a^{19}-\frac{1231}{18208}a^{18}-\frac{76}{569}a^{17}+\frac{845}{18208}a^{16}-\frac{4049}{4552}a^{15}+\frac{9965}{18208}a^{14}-\frac{1409}{1138}a^{13}+\frac{19883}{18208}a^{12}+\frac{12561}{4552}a^{11}-\frac{12691}{18208}a^{10}+\frac{4785}{1138}a^{9}-\frac{30625}{18208}a^{8}+\frac{1339}{2276}a^{7}-\frac{1231}{2276}a^{6}-\frac{19059}{2276}a^{5}+\frac{32853}{9104}a^{4}+\frac{13747}{4552}a^{3}-\frac{45595}{18208}a^{2}-\frac{644}{569}a-\frac{1225}{18208}$, $\frac{77}{4552}a^{19}+\frac{3317}{18208}a^{18}+\frac{53}{1138}a^{17}-\frac{171}{18208}a^{16}-\frac{823}{4552}a^{15}-\frac{27295}{18208}a^{14}-\frac{905}{1138}a^{13}-\frac{71501}{18208}a^{12}-\frac{3283}{4552}a^{11}-\frac{11279}{18208}a^{10}+\frac{3259}{2276}a^{9}+\frac{91231}{18208}a^{8}+\frac{2999}{1138}a^{7}+\frac{14697}{2276}a^{6}+\frac{285}{1138}a^{5}-\frac{41723}{9104}a^{4}-\frac{11685}{4552}a^{3}+\frac{28849}{18208}a^{2}+\frac{509}{1138}a-\frac{6001}{18208}$, $\frac{13455}{36416}a^{19}-\frac{2135}{36416}a^{18}-\frac{6103}{36416}a^{17}+\frac{2243}{36416}a^{16}-\frac{109553}{36416}a^{15}+\frac{17233}{36416}a^{14}-\frac{246593}{36416}a^{13}+\frac{29765}{36416}a^{12}+\frac{69815}{36416}a^{11}-\frac{37255}{36416}a^{10}+\frac{371243}{36416}a^{9}-\frac{70599}{36416}a^{8}+\frac{74137}{9104}a^{7}-\frac{9391}{9104}a^{6}-\frac{285079}{18208}a^{5}+\frac{56355}{18208}a^{4}+\frac{335915}{36416}a^{3}-\frac{81859}{36416}a^{2}-\frac{39137}{36416}a+\frac{42605}{36416}$, $\frac{9125}{36416}a^{19}+\frac{13089}{36416}a^{18}+\frac{3627}{36416}a^{17}-\frac{2337}{36416}a^{16}-\frac{74091}{36416}a^{15}-\frac{107119}{36416}a^{14}-\frac{230915}{36416}a^{13}-\frac{270103}{36416}a^{12}-\frac{124627}{36416}a^{11}-\frac{8103}{36416}a^{10}+\frac{212049}{36416}a^{9}+\frac{360701}{36416}a^{8}+\frac{100755}{9104}a^{7}+\frac{104131}{9104}a^{6}-\frac{59693}{18208}a^{5}-\frac{204537}{18208}a^{4}+\frac{23401}{36416}a^{3}+\frac{219397}{36416}a^{2}+\frac{44989}{36416}a-\frac{17527}{36416}$, $\frac{3627}{36416}a^{19}+\frac{4597}{36416}a^{18}-\frac{1091}{36416}a^{17}-\frac{3933}{36416}a^{16}-\frac{30165}{36416}a^{15}-\frac{37163}{36416}a^{14}-\frac{69877}{36416}a^{13}-\frac{69531}{36416}a^{12}+\frac{11299}{36416}a^{11}+\frac{62637}{36416}a^{10}+\frac{101895}{36416}a^{9}+\frac{131849}{36416}a^{8}+\frac{20341}{9104}a^{7}+\frac{14315}{9104}a^{6}-\frac{74987}{18208}a^{5}-\frac{122061}{18208}a^{4}+\frac{63239}{36416}a^{3}+\frac{173049}{36416}a^{2}+\frac{27291}{36416}a-\frac{40155}{36416}$, $\frac{4597}{36416}a^{19}-\frac{10967}{36416}a^{18}-\frac{3933}{36416}a^{17}-\frac{3777}{36416}a^{16}-\frac{37163}{36416}a^{15}+\frac{88281}{36416}a^{14}-\frac{69531}{36416}a^{13}+\frac{273929}{36416}a^{12}+\frac{62637}{36416}a^{11}+\frac{144401}{36416}a^{10}+\frac{131849}{36416}a^{9}-\frac{251971}{36416}a^{8}+\frac{14315}{9104}a^{7}-\frac{123785}{9104}a^{6}-\frac{122061}{18208}a^{5}+\frac{58871}{18208}a^{4}+\frac{173049}{36416}a^{3}-\frac{45811}{36416}a^{2}-\frac{40155}{36416}a-\frac{17271}{36416}$, $\frac{7693}{36416}a^{19}-\frac{6711}{36416}a^{18}-\frac{2769}{36416}a^{17}+\frac{699}{36416}a^{16}-\frac{62155}{36416}a^{15}+\frac{53137}{36416}a^{14}-\frac{146951}{36416}a^{13}+\frac{141501}{36416}a^{12}+\frac{21261}{36416}a^{11}+\frac{30393}{36416}a^{10}+\frac{198749}{36416}a^{9}-\frac{136063}{36416}a^{8}+\frac{44405}{9104}a^{7}-\frac{50407}{9104}a^{6}-\frac{153737}{18208}a^{5}+\frac{77755}{18208}a^{4}+\frac{190817}{36416}a^{3}-\frac{167779}{36416}a^{2}-\frac{23823}{36416}a+\frac{18501}{36416}$, $\frac{13455}{36416}a^{19}+\frac{2135}{36416}a^{18}-\frac{6103}{36416}a^{17}-\frac{2243}{36416}a^{16}-\frac{109553}{36416}a^{15}-\frac{17233}{36416}a^{14}-\frac{246593}{36416}a^{13}-\frac{29765}{36416}a^{12}+\frac{69815}{36416}a^{11}+\frac{37255}{36416}a^{10}+\frac{371243}{36416}a^{9}+\frac{70599}{36416}a^{8}+\frac{74137}{9104}a^{7}+\frac{9391}{9104}a^{6}-\frac{285079}{18208}a^{5}-\frac{56355}{18208}a^{4}+\frac{335915}{36416}a^{3}+\frac{81859}{36416}a^{2}-\frac{39137}{36416}a-\frac{42605}{36416}$ | sage: UK.fundamental_units()
gp: K.fu
magma: [K|fUK(g): g in Generators(UK)];
oscar: [K(fUK(a)) for a in gens(UK)]
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Regulator: | \( 7917.88619089 \) | sage: K.regulator()
gp: K.reg
magma: Regulator(K);
oscar: regulator(K)
|
Class number formula
\[ \begin{aligned}\lim_{s\to 1} (s-1)\zeta_K(s) =\mathstrut & \frac{2^{r_1}\cdot (2\pi)^{r_2}\cdot R\cdot h}{w\cdot\sqrt{|D|}}\cr \approx\mathstrut &\frac{2^{4}\cdot(2\pi)^{8}\cdot 7917.88619089 \cdot 1}{2\cdot\sqrt{436011848767111570653184}}\cr\approx \mathstrut & 0.233017770773 \end{aligned}\]
Galois group
$C_2\times A_5$ (as 20T36):
A non-solvable group of order 120 |
The 10 conjugacy class representatives for $C_2\times A_5$ |
Character table for $C_2\times A_5$ |
Intermediate fields
10.2.82538991616.1 |
Fields in the database are given up to isomorphism. Isomorphic intermediate fields are shown with their multiplicities.
Sibling fields
Degree 10 sibling: | data not computed |
Degree 12 siblings: | data not computed |
Degree 20 sibling: | data not computed |
Degree 24 sibling: | data not computed |
Degree 30 siblings: | data not computed |
Degree 40 sibling: | data not computed |
Minimal sibling: | 10.0.5530112438272.1 |
Frobenius cycle types
$p$ | $2$ | $3$ | $5$ | $7$ | $11$ | $13$ | $17$ | $19$ | $23$ | $29$ | $31$ | $37$ | $41$ | $43$ | $47$ | $53$ | $59$ |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Cycle type | R | ${\href{/padicField/3.10.0.1}{10} }^{2}$ | ${\href{/padicField/5.6.0.1}{6} }^{3}{,}\,{\href{/padicField/5.2.0.1}{2} }$ | ${\href{/padicField/7.10.0.1}{10} }^{2}$ | ${\href{/padicField/11.6.0.1}{6} }^{3}{,}\,{\href{/padicField/11.2.0.1}{2} }$ | ${\href{/padicField/13.10.0.1}{10} }^{2}$ | ${\href{/padicField/17.2.0.1}{2} }^{10}$ | ${\href{/padicField/19.5.0.1}{5} }^{4}$ | ${\href{/padicField/23.3.0.1}{3} }^{6}{,}\,{\href{/padicField/23.1.0.1}{1} }^{2}$ | ${\href{/padicField/29.3.0.1}{3} }^{6}{,}\,{\href{/padicField/29.1.0.1}{1} }^{2}$ | ${\href{/padicField/31.6.0.1}{6} }^{3}{,}\,{\href{/padicField/31.2.0.1}{2} }$ | ${\href{/padicField/37.5.0.1}{5} }^{4}$ | ${\href{/padicField/41.10.0.1}{10} }^{2}$ | ${\href{/padicField/43.10.0.1}{10} }^{2}$ | ${\href{/padicField/47.5.0.1}{5} }^{4}$ | ${\href{/padicField/53.6.0.1}{6} }^{3}{,}\,{\href{/padicField/53.2.0.1}{2} }$ | ${\href{/padicField/59.2.0.1}{2} }^{10}$ |
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 |
---|---|---|---|---|---|---|---|
\(2\) | 2.8.12.16 | $x^{8} + 8 x^{7} + 32 x^{6} + 78 x^{5} + 137 x^{4} + 186 x^{3} + 128 x^{2} - 10 x + 7$ | $4$ | $2$ | $12$ | $A_4\times C_2$ | $[2, 2]^{6}$ |
2.12.18.48 | $x^{12} + 6 x^{11} + 18 x^{10} + 32 x^{9} + 34 x^{8} + 16 x^{7} - 8 x^{6} - 16 x^{5} - 12 x^{4} - 8 x^{3} - 8 x^{2} + 72$ | $4$ | $3$ | $18$ | $A_4\times C_2$ | $[2, 2]^{6}$ | |
\(67\) | 67.2.0.1 | $x^{2} + 63 x + 2$ | $1$ | $2$ | $0$ | $C_2$ | $[\ ]^{2}$ |
67.2.1.1 | $x^{2} + 134$ | $2$ | $1$ | $1$ | $C_2$ | $[\ ]_{2}$ | |
67.2.1.1 | $x^{2} + 134$ | $2$ | $1$ | $1$ | $C_2$ | $[\ ]_{2}$ | |
67.2.0.1 | $x^{2} + 63 x + 2$ | $1$ | $2$ | $0$ | $C_2$ | $[\ ]^{2}$ | |
67.4.2.1 | $x^{4} + 126 x^{3} + 4107 x^{2} + 8694 x + 270148$ | $2$ | $2$ | $2$ | $C_2^2$ | $[\ ]_{2}^{2}$ | |
67.4.2.1 | $x^{4} + 126 x^{3} + 4107 x^{2} + 8694 x + 270148$ | $2$ | $2$ | $2$ | $C_2^2$ | $[\ ]_{2}^{2}$ | |
67.4.2.1 | $x^{4} + 126 x^{3} + 4107 x^{2} + 8694 x + 270148$ | $2$ | $2$ | $2$ | $C_2^2$ | $[\ ]_{2}^{2}$ |