Normalized defining polynomial
\( x^{18} - x^{17} - 56 x^{16} + 56 x^{15} + 1312 x^{14} - 1312 x^{13} - 16643 x^{12} + 16643 x^{11} + \cdots + 44917 \)
Invariants
Degree: | $18$ | sage: K.degree()
gp: poldegree(K.pol)
magma: Degree(K);
oscar: degree(K)
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Signature: | $[18, 0]$ | sage: K.signature()
gp: K.sign
magma: Signature(K);
oscar: signature(K)
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Discriminant: | \(12922465537100419689226617716849\) \(\medspace = 11^{9}\cdot 19^{17}\) | 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: | \(53.51\) | 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: | $11^{1/2}19^{17/18}\approx 53.50668890125934$ | ||
Ramified primes: | \(11\), \(19\) | 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: | \(\Q(\sqrt{209}) \) | ||
$\card{ \Gal(K/\Q) }$: | $18$ | sage: K.automorphisms()
magma: Automorphisms(K);
oscar: automorphisms(K)
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This field is Galois and abelian over $\Q$. | |||
Conductor: | \(209=11\cdot 19\) | ||
Dirichlet character group: | $\lbrace$$\chi_{209}(1,·)$, $\chi_{209}(65,·)$, $\chi_{209}(10,·)$, $\chi_{209}(45,·)$, $\chi_{209}(208,·)$, $\chi_{209}(21,·)$, $\chi_{209}(23,·)$, $\chi_{209}(100,·)$, $\chi_{209}(32,·)$, $\chi_{209}(144,·)$, $\chi_{209}(98,·)$, $\chi_{209}(164,·)$, $\chi_{209}(199,·)$, $\chi_{209}(109,·)$, $\chi_{209}(111,·)$, $\chi_{209}(177,·)$, $\chi_{209}(186,·)$, $\chi_{209}(188,·)$$\rbrace$ | ||
This is not a CM field. |
Integral basis (with respect to field generator \(a\))
$1$, $a$, $a^{2}$, $a^{3}$, $a^{4}$, $a^{5}$, $a^{6}$, $a^{7}$, $a^{8}$, $a^{9}$, $\frac{1}{15467}a^{10}-\frac{6479}{15467}a^{9}-\frac{30}{15467}a^{8}+\frac{4796}{15467}a^{7}+\frac{315}{15467}a^{6}+\frac{3237}{15467}a^{5}-\frac{1350}{15467}a^{4}+\frac{4677}{15467}a^{3}+\frac{2025}{15467}a^{2}-\frac{5756}{15467}a-\frac{486}{15467}$, $\frac{1}{15467}a^{11}-\frac{33}{15467}a^{9}-\frac{3970}{15467}a^{8}+\frac{396}{15467}a^{7}+\frac{2478}{15467}a^{6}-\frac{2079}{15467}a^{5}-\frac{3118}{15467}a^{4}+\frac{4455}{15467}a^{3}-\frac{1797}{15467}a^{2}-\frac{2673}{15467}a+\frac{6474}{15467}$, $\frac{1}{15467}a^{12}-\frac{1239}{15467}a^{9}-\frac{594}{15467}a^{8}+\frac{6076}{15467}a^{7}-\frac{7151}{15467}a^{6}-\frac{4566}{15467}a^{5}+\frac{6306}{15467}a^{4}-\frac{2126}{15467}a^{3}+\frac{2284}{15467}a^{2}+\frac{2130}{15467}a-\frac{571}{15467}$, $\frac{1}{15467}a^{13}-\frac{702}{15467}a^{9}-\frac{160}{15467}a^{8}-\frac{4235}{15467}a^{7}-\frac{956}{15467}a^{6}-\frac{4471}{15467}a^{5}-\frac{4340}{15467}a^{4}-\frac{3038}{15467}a^{3}+\frac{5451}{15467}a^{2}-\frac{1968}{15467}a+\frac{1059}{15467}$, $\frac{1}{15467}a^{14}-\frac{1120}{15467}a^{9}+\frac{5639}{15467}a^{8}-\frac{5970}{15467}a^{7}+\frac{121}{15467}a^{6}-\frac{5615}{15467}a^{5}-\frac{7251}{15467}a^{4}-\frac{5766}{15467}a^{3}-\frac{3382}{15467}a^{2}-\frac{2766}{15467}a-\frac{898}{15467}$, $\frac{1}{15467}a^{15}+\frac{3182}{15467}a^{9}+\frac{6831}{15467}a^{8}+\frac{4592}{15467}a^{7}+\frac{6911}{15467}a^{6}-\frac{1089}{15467}a^{5}-\frac{2000}{15467}a^{4}+\frac{7012}{15467}a^{3}+\frac{7052}{15467}a^{2}+\frac{2121}{15467}a-\frac{2975}{15467}$, $\frac{1}{15467}a^{16}+\frac{5498}{15467}a^{9}+\frac{7250}{15467}a^{8}-\frac{3499}{15467}a^{7}+\frac{1936}{15467}a^{6}-\frac{1112}{15467}a^{5}+\frac{2886}{15467}a^{4}+\frac{4092}{15467}a^{3}-\frac{7157}{15467}a^{2}-\frac{311}{15467}a-\frac{248}{15467}$, $\frac{1}{15467}a^{17}-\frac{7176}{15467}a^{9}+\frac{6771}{15467}a^{8}+\frac{4763}{15467}a^{7}-\frac{678}{15467}a^{6}-\frac{7090}{15467}a^{5}+\frac{2232}{15467}a^{4}+\frac{318}{15467}a^{3}+\frac{2479}{15467}a^{2}+\frac{758}{15467}a-\frac{3763}{15467}$
Monogenic: | Not computed | |
Index: | $1$ | |
Inessential primes: | None |
Class group and class number
Trivial group, which has order $1$ (assuming GRH)
Unit group
Rank: | $17$ | 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: | $\frac{2}{15467}a^{16}-\frac{96}{15467}a^{14}+\frac{16}{15467}a^{13}+\frac{1859}{15467}a^{12}-\frac{624}{15467}a^{11}-\frac{18466}{15467}a^{10}+\frac{9391}{15467}a^{9}+\frac{98382}{15467}a^{8}-\frac{68069}{15467}a^{7}-\frac{263371}{15467}a^{6}+\frac{240045}{15467}a^{5}+\frac{268641}{15467}a^{4}-\frac{354803}{15467}a^{3}+\frac{32157}{15467}a^{2}+\frac{108396}{15467}a-\frac{45553}{15467}$, $\frac{16}{15467}a^{13}-\frac{624}{15467}a^{11}+\frac{9360}{15467}a^{9}-\frac{67392}{15467}a^{7}+\frac{599}{15467}a^{6}+\frac{235872}{15467}a^{5}-\frac{10782}{15467}a^{4}-\frac{353808}{15467}a^{3}+\frac{48519}{15467}a^{2}+\frac{151632}{15467}a-\frac{32346}{15467}$, $\frac{35}{15467}a^{11}-\frac{1155}{15467}a^{9}+\frac{253}{15467}a^{8}+\frac{13860}{15467}a^{7}-\frac{6072}{15467}a^{6}-\frac{72765}{15467}a^{5}+\frac{45540}{15467}a^{4}+\frac{155925}{15467}a^{3}-\frac{109296}{15467}a^{2}-\frac{93555}{15467}a+\frac{25519}{15467}$, $\frac{35}{15467}a^{11}-\frac{1155}{15467}a^{9}+\frac{253}{15467}a^{8}+\frac{13860}{15467}a^{7}-\frac{6072}{15467}a^{6}-\frac{72765}{15467}a^{5}+\frac{45540}{15467}a^{4}+\frac{155925}{15467}a^{3}-\frac{109296}{15467}a^{2}-\frac{93555}{15467}a+\frac{40986}{15467}$, $\frac{13}{15467}a^{12}-\frac{468}{15467}a^{10}+\frac{6318}{15467}a^{8}-\frac{160}{15467}a^{7}-\frac{39312}{15467}a^{6}+\frac{3360}{15467}a^{5}+\frac{110565}{15467}a^{4}-\frac{20160}{15467}a^{3}-\frac{113724}{15467}a^{2}+\frac{30240}{15467}a+\frac{18954}{15467}$, $\frac{1}{15467}a^{17}-\frac{51}{15467}a^{15}-\frac{1}{15467}a^{14}+\frac{1071}{15467}a^{13}+\frac{42}{15467}a^{12}-\frac{11969}{15467}a^{11}-\frac{693}{15467}a^{10}+\frac{76890}{15467}a^{9}+\frac{5417}{15467}a^{8}-\frac{286506}{15467}a^{7}-\frac{17742}{15467}a^{6}+\frac{592192}{15467}a^{5}+\frac{2088}{15467}a^{4}-\frac{585888}{15467}a^{3}+\frac{71774}{15467}a^{2}+\frac{156537}{15467}a-\frac{25806}{15467}$, $\frac{13}{15467}a^{12}-\frac{468}{15467}a^{10}+\frac{6318}{15467}a^{8}-\frac{160}{15467}a^{7}-\frac{39312}{15467}a^{6}+\frac{3360}{15467}a^{5}+\frac{110565}{15467}a^{4}-\frac{20160}{15467}a^{3}-\frac{113724}{15467}a^{2}+\frac{30240}{15467}a+\frac{3487}{15467}$, $\frac{1}{15467}a^{17}-\frac{51}{15467}a^{15}+\frac{1071}{15467}a^{13}-\frac{11934}{15467}a^{11}+\frac{75735}{15467}a^{9}-\frac{272646}{15467}a^{7}+\frac{520506}{15467}a^{5}-\frac{446148}{15467}a^{3}-\frac{1801}{15467}a^{2}+\frac{111537}{15467}a+\frac{10806}{15467}$, $\frac{1}{15467}a^{17}-\frac{51}{15467}a^{15}+\frac{1074}{15467}a^{13}-\frac{12051}{15467}a^{11}-\frac{74}{15467}a^{10}+\frac{77459}{15467}a^{9}+\frac{2220}{15467}a^{8}-\frac{284445}{15467}a^{7}-\frac{22231}{15467}a^{6}+\frac{557199}{15467}a^{5}+\frac{80478}{15467}a^{4}-\frac{487377}{15467}a^{3}-\frac{64252}{15467}a^{2}+\frac{117369}{15467}a-\frac{11496}{15467}$, $\frac{1}{15467}a^{17}-\frac{51}{15467}a^{15}+\frac{15}{15467}a^{14}+\frac{1071}{15467}a^{13}-\frac{569}{15467}a^{12}-\frac{11934}{15467}a^{11}+\frac{8199}{15467}a^{10}+\frac{75735}{15467}a^{9}-\frac{55404}{15467}a^{8}-\frac{272207}{15467}a^{7}+\frac{172746}{15467}a^{6}+\frac{512005}{15467}a^{5}-\frac{195615}{15467}a^{4}-\frac{401604}{15467}a^{3}+\frac{386}{15467}a^{2}+\frac{60876}{15467}a+\frac{3200}{15467}$, $\frac{2}{15467}a^{16}-\frac{97}{15467}a^{14}+\frac{13}{15467}a^{13}+\frac{1901}{15467}a^{12}-\frac{542}{15467}a^{11}-\frac{19233}{15467}a^{10}+\frac{8760}{15467}a^{9}+\frac{106019}{15467}a^{8}-\frac{68456}{15467}a^{7}-\frac{305502}{15467}a^{6}+\frac{259972}{15467}a^{5}+\frac{390051}{15467}a^{4}-\frac{403094}{15467}a^{3}-\frac{131517}{15467}a^{2}+\frac{102366}{15467}a-\frac{3402}{15467}$, $\frac{35}{15467}a^{11}+\frac{179}{15467}a^{10}-\frac{871}{15467}a^{9}-\frac{5117}{15467}a^{8}+\frac{6192}{15467}a^{7}+\frac{50313}{15467}a^{6}-\frac{3753}{15467}a^{5}-\frac{196110}{15467}a^{4}-\frac{74115}{15467}a^{3}+\frac{253179}{15467}a^{2}+\frac{128948}{15467}a-\frac{15074}{15467}$, $\frac{1}{15467}a^{17}+\frac{2}{15467}a^{16}-\frac{56}{15467}a^{15}-\frac{112}{15467}a^{14}+\frac{1296}{15467}a^{13}+\frac{2544}{15467}a^{12}-\frac{16019}{15467}a^{11}-\frac{30096}{15467}a^{10}+\frac{114015}{15467}a^{9}+\frac{197387}{15467}a^{8}-\frac{468756}{15467}a^{7}-\frac{701544}{15467}a^{6}+\frac{1050744}{15467}a^{5}+\frac{1205678}{15467}a^{4}-\frac{1081463}{15467}a^{3}-\frac{735361}{15467}a^{2}+\frac{252657}{15467}a+\frac{68591}{15467}$, $\frac{1}{15467}a^{15}-\frac{1}{15467}a^{14}-\frac{29}{15467}a^{13}+\frac{29}{15467}a^{12}+\frac{186}{15467}a^{11}-\frac{151}{15467}a^{10}+\frac{1966}{15467}a^{9}-\frac{2868}{15467}a^{8}-\frac{31619}{15467}a^{7}+\frac{39407}{15467}a^{6}+\frac{147112}{15467}a^{5}-\frac{170382}{15467}a^{4}-\frac{240513}{15467}a^{3}+\frac{237528}{15467}a^{2}+\frac{62631}{15467}a-\frac{9157}{15467}$, $\frac{1}{15467}a^{17}+\frac{2}{15467}a^{16}-\frac{56}{15467}a^{15}-\frac{96}{15467}a^{14}+\frac{1312}{15467}a^{13}+\frac{1872}{15467}a^{12}-\frac{16682}{15467}a^{11}-\frac{19008}{15467}a^{10}+\frac{124662}{15467}a^{9}+\frac{106827}{15467}a^{8}-\frac{551592}{15467}a^{7}-\frac{323761}{15467}a^{6}+\frac{1369494}{15467}a^{5}+\frac{461648}{15467}a^{4}-\frac{1635971}{15467}a^{3}-\frac{184426}{15467}a^{2}+\frac{589401}{15467}a-\frac{23286}{15467}$, $\frac{5}{15467}a^{15}-\frac{17}{15467}a^{14}-\frac{225}{15467}a^{13}+\frac{714}{15467}a^{12}+\frac{4050}{15467}a^{11}-\frac{11750}{15467}a^{10}-\frac{36903}{15467}a^{9}+\frac{95460}{15467}a^{8}+\frac{176256}{15467}a^{7}-\frac{395073}{15467}a^{6}-\frac{408200}{15467}a^{5}+\frac{768544}{15467}a^{4}+\frac{373620}{15467}a^{3}-\frac{553098}{15467}a^{2}-\frac{131607}{15467}a+\frac{103150}{15467}$, $\frac{3}{15467}a^{17}+\frac{4}{15467}a^{16}-\frac{153}{15467}a^{15}-\frac{208}{15467}a^{14}+\frac{3197}{15467}a^{13}+\frac{4416}{15467}a^{12}-\frac{35104}{15467}a^{11}-\frac{49030}{15467}a^{10}+\frac{215434}{15467}a^{9}+\frac{302433}{15467}a^{8}-\frac{722079}{15467}a^{7}-\frac{1013729}{15467}a^{6}+\frac{1177536}{15467}a^{5}+\frac{1669446}{15467}a^{4}-\frac{645211}{15467}a^{3}-\frac{1060189}{15467}a^{2}-\frac{144279}{15467}a+\frac{42602}{15467}$ (assuming GRH) | 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: | \( 3961676166.05 \) (assuming GRH) | sage: K.regulator()
gp: K.reg
magma: Regulator(K);
oscar: regulator(K)
|
Class number formula
\[ \begin{aligned}\lim_{s\to 1} (s-1)\zeta_K(s) =\mathstrut & \frac{2^{r_1}\cdot (2\pi)^{r_2}\cdot R\cdot h}{w\cdot\sqrt{|D|}}\cr \approx\mathstrut &\frac{2^{18}\cdot(2\pi)^{0}\cdot 3961676166.05 \cdot 1}{2\cdot\sqrt{12922465537100419689226617716849}}\cr\approx \mathstrut & 0.144449554805 \end{aligned}\] (assuming GRH)
Galois group
A cyclic group of order 18 |
The 18 conjugacy class representatives for $C_{18}$ |
Character table for $C_{18}$ |
Intermediate fields
\(\Q(\sqrt{209}) \), 3.3.361.1, 6.6.3295687769.1, \(\Q(\zeta_{19})^+\) |
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 | ${\href{/padicField/2.9.0.1}{9} }^{2}$ | $18$ | ${\href{/padicField/5.9.0.1}{9} }^{2}$ | ${\href{/padicField/7.6.0.1}{6} }^{3}$ | R | ${\href{/padicField/13.9.0.1}{9} }^{2}$ | $18$ | R | ${\href{/padicField/23.9.0.1}{9} }^{2}$ | ${\href{/padicField/29.9.0.1}{9} }^{2}$ | ${\href{/padicField/31.6.0.1}{6} }^{3}$ | ${\href{/padicField/37.2.0.1}{2} }^{9}$ | ${\href{/padicField/41.9.0.1}{9} }^{2}$ | $18$ | ${\href{/padicField/47.9.0.1}{9} }^{2}$ | $18$ | $18$ |
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 |
---|---|---|---|---|---|---|---|
\(11\) | 11.6.3.2 | $x^{6} + 37 x^{4} + 18 x^{3} + 367 x^{2} - 558 x + 972$ | $2$ | $3$ | $3$ | $C_6$ | $[\ ]_{2}^{3}$ |
11.6.3.2 | $x^{6} + 37 x^{4} + 18 x^{3} + 367 x^{2} - 558 x + 972$ | $2$ | $3$ | $3$ | $C_6$ | $[\ ]_{2}^{3}$ | |
11.6.3.2 | $x^{6} + 37 x^{4} + 18 x^{3} + 367 x^{2} - 558 x + 972$ | $2$ | $3$ | $3$ | $C_6$ | $[\ ]_{2}^{3}$ | |
\(19\) | 19.18.17.1 | $x^{18} + 342$ | $18$ | $1$ | $17$ | $C_{18}$ | $[\ ]_{18}$ |