Normalized defining polynomial
\( x^{38} - 191 x^{36} + 15662 x^{34} - 730575 x^{32} + 21705622 x^{30} - 436357836 x^{28} + \cdots - 1101076991 \)
Invariants
Degree: | $38$ | sage: K.degree()
gp: poldegree(K.pol)
magma: Degree(K);
oscar: degree(K)
| |
Signature: | $[38, 0]$ | sage: K.signature()
gp: K.sign
magma: Signature(K);
oscar: signature(K)
| |
Discriminant: | \(687\!\cdots\!664\) \(\medspace = 2^{38}\cdot 191^{37}\) | sage: K.disc()
gp: K.disc
magma: OK := Integers(K); Discriminant(OK);
oscar: OK = ring_of_integers(K); discriminant(OK)
| |
Root discriminant: | \(332.69\) | 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: | $2\cdot 191^{37/38}\approx 332.6872590953789$ | ||
Ramified primes: | \(2\), \(191\) | sage: K.disc().support()
gp: factor(abs(K.disc))[,1]~
magma: PrimeDivisors(Discriminant(OK));
oscar: prime_divisors(discriminant((OK)))
| |
Discriminant root field: | \(\Q(\sqrt{191}) \) | ||
$\card{ \Gal(K/\Q) }$: | $38$ | sage: K.automorphisms()
magma: Automorphisms(K);
oscar: automorphisms(K)
| |
This field is Galois and abelian over $\Q$. | |||
Conductor: | \(764=2^{2}\cdot 191\) | ||
Dirichlet character group: | $\lbrace$$\chi_{764}(1,·)$, $\chi_{764}(643,·)$, $\chi_{764}(5,·)$, $\chi_{764}(567,·)$, $\chi_{764}(139,·)$, $\chi_{764}(275,·)$, $\chi_{764}(25,·)$, $\chi_{764}(153,·)$, $\chi_{764}(155,·)$, $\chi_{764}(31,·)$, $\chi_{764}(197,·)$, $\chi_{764}(419,·)$, $\chi_{764}(423,·)$, $\chi_{764}(605,·)$, $\chi_{764}(177,·)$, $\chi_{764}(709,·)$, $\chi_{764}(695,·)$, $\chi_{764}(543,·)$, $\chi_{764}(159,·)$, $\chi_{764}(11,·)$, $\chi_{764}(69,·)$, $\chi_{764}(55,·)$, $\chi_{764}(611,·)$, $\chi_{764}(341,·)$, $\chi_{764}(625,·)$, $\chi_{764}(345,·)$, $\chi_{764}(733,·)$, $\chi_{764}(609,·)$, $\chi_{764}(587,·)$, $\chi_{764}(739,·)$, $\chi_{764}(489,·)$, $\chi_{764}(753,·)$, $\chi_{764}(221,·)$, $\chi_{764}(759,·)$, $\chi_{764}(121,·)$, $\chi_{764}(763,·)$, $\chi_{764}(125,·)$, $\chi_{764}(639,·)$$\rbrace$ | ||
This is not a CM field. |
Integral basis (with respect to field generator \(a\))
$1$, $a$, $a^{2}$, $a^{3}$, $a^{4}$, $a^{5}$, $a^{6}$, $\frac{1}{7}a^{7}-\frac{1}{7}a$, $\frac{1}{7}a^{8}-\frac{1}{7}a^{2}$, $\frac{1}{7}a^{9}-\frac{1}{7}a^{3}$, $\frac{1}{7}a^{10}-\frac{1}{7}a^{4}$, $\frac{1}{7}a^{11}-\frac{1}{7}a^{5}$, $\frac{1}{7}a^{12}-\frac{1}{7}a^{6}$, $\frac{1}{7}a^{13}-\frac{1}{7}a$, $\frac{1}{49}a^{14}-\frac{2}{49}a^{8}+\frac{1}{49}a^{2}$, $\frac{1}{49}a^{15}-\frac{2}{49}a^{9}+\frac{1}{49}a^{3}$, $\frac{1}{49}a^{16}-\frac{2}{49}a^{10}+\frac{1}{49}a^{4}$, $\frac{1}{49}a^{17}-\frac{2}{49}a^{11}+\frac{1}{49}a^{5}$, $\frac{1}{49}a^{18}-\frac{2}{49}a^{12}+\frac{1}{49}a^{6}$, $\frac{1}{49}a^{19}-\frac{2}{49}a^{13}+\frac{1}{49}a^{7}$, $\frac{1}{49}a^{20}-\frac{3}{49}a^{8}+\frac{2}{49}a^{2}$, $\frac{1}{343}a^{21}-\frac{3}{343}a^{15}+\frac{3}{343}a^{9}-\frac{1}{343}a^{3}$, $\frac{1}{343}a^{22}-\frac{3}{343}a^{16}+\frac{3}{343}a^{10}-\frac{1}{343}a^{4}$, $\frac{1}{343}a^{23}-\frac{3}{343}a^{17}+\frac{3}{343}a^{11}-\frac{1}{343}a^{5}$, $\frac{1}{2401}a^{24}+\frac{3}{2401}a^{22}+\frac{1}{343}a^{20}+\frac{4}{2401}a^{18}-\frac{2}{2401}a^{16}-\frac{2}{343}a^{14}+\frac{87}{2401}a^{12}+\frac{93}{2401}a^{10}+\frac{15}{343}a^{8}-\frac{778}{2401}a^{6}+\frac{935}{2401}a^{4}-\frac{9}{49}a^{2}$, $\frac{1}{2401}a^{25}+\frac{3}{2401}a^{23}+\frac{4}{2401}a^{19}-\frac{2}{2401}a^{17}+\frac{1}{343}a^{15}+\frac{87}{2401}a^{13}+\frac{93}{2401}a^{11}+\frac{12}{343}a^{9}-\frac{92}{2401}a^{7}+\frac{935}{2401}a^{5}-\frac{62}{343}a^{3}-\frac{2}{7}a$, $\frac{1}{2401}a^{26}-\frac{2}{2401}a^{22}-\frac{17}{2401}a^{20}-\frac{2}{343}a^{18}-\frac{8}{2401}a^{16}-\frac{18}{2401}a^{14}-\frac{24}{343}a^{12}+\frac{169}{2401}a^{10}-\frac{113}{2401}a^{8}+\frac{124}{343}a^{6}-\frac{1188}{2401}a^{4}+\frac{10}{49}a^{2}$, $\frac{1}{2401}a^{27}-\frac{2}{2401}a^{23}-\frac{3}{2401}a^{21}-\frac{2}{343}a^{19}-\frac{8}{2401}a^{17}-\frac{11}{2401}a^{15}-\frac{24}{343}a^{13}+\frac{169}{2401}a^{11}-\frac{169}{2401}a^{9}-\frac{23}{343}a^{7}-\frac{1188}{2401}a^{5}+\frac{75}{343}a^{3}+\frac{3}{7}a$, $\frac{1}{1831963}a^{28}+\frac{22}{261709}a^{26}+\frac{36}{261709}a^{24}+\frac{2096}{1831963}a^{22}+\frac{1418}{261709}a^{20}-\frac{2250}{261709}a^{18}-\frac{14967}{1831963}a^{16}-\frac{1915}{261709}a^{14}-\frac{13738}{261709}a^{12}-\frac{22320}{1831963}a^{10}+\frac{9582}{261709}a^{8}+\frac{27957}{261709}a^{6}+\frac{20784}{1831963}a^{4}-\frac{13747}{37387}a^{2}-\frac{202}{763}$, $\frac{1}{1831963}a^{29}+\frac{22}{261709}a^{27}+\frac{36}{261709}a^{25}+\frac{2096}{1831963}a^{23}-\frac{108}{261709}a^{21}-\frac{2250}{261709}a^{19}-\frac{14967}{1831963}a^{17}+\frac{2663}{261709}a^{15}-\frac{13738}{261709}a^{13}-\frac{22320}{1831963}a^{11}+\frac{5004}{261709}a^{9}-\frac{9430}{261709}a^{7}+\frac{20784}{1831963}a^{5}-\frac{13529}{37387}a^{3}-\frac{93}{763}a$, $\frac{1}{1831963}a^{30}+\frac{27}{261709}a^{26}-\frac{88}{1831963}a^{24}+\frac{15}{37387}a^{22}-\frac{1096}{261709}a^{20}-\frac{17333}{1831963}a^{18}+\frac{2}{763}a^{16}-\frac{2446}{261709}a^{14}-\frac{95071}{1831963}a^{12}+\frac{1446}{37387}a^{10}+\frac{17725}{261709}a^{8}+\frac{242145}{1831963}a^{6}+\frac{4566}{37387}a^{4}-\frac{2327}{5341}a^{2}-\frac{25}{109}$, $\frac{1}{12823741}a^{31}+\frac{3}{12823741}a^{29}+\frac{93}{1831963}a^{27}-\frac{95}{12823741}a^{25}-\frac{16630}{12823741}a^{23}+\frac{2395}{1831963}a^{21}+\frac{44526}{12823741}a^{19}-\frac{49255}{12823741}a^{17}+\frac{14699}{1831963}a^{15}+\frac{634273}{12823741}a^{13}+\frac{803518}{12823741}a^{11}-\frac{45089}{1831963}a^{9}+\frac{226472}{12823741}a^{7}+\frac{6061996}{12823741}a^{5}+\frac{32504}{261709}a^{3}-\frac{781}{5341}a$, $\frac{1}{12823741}a^{32}+\frac{3}{12823741}a^{30}+\frac{1130}{12823741}a^{26}+\frac{912}{12823741}a^{24}+\frac{506}{1831963}a^{22}-\frac{66851}{12823741}a^{20}+\frac{88141}{12823741}a^{18}-\frac{16365}{1831963}a^{16}+\frac{19519}{12823741}a^{14}+\frac{394466}{12823741}a^{12}+\frac{72813}{1831963}a^{10}-\frac{507744}{12823741}a^{8}-\frac{759637}{12823741}a^{6}+\frac{435594}{1831963}a^{4}-\frac{8073}{37387}a^{2}-\frac{289}{763}$, $\frac{1}{12823741}a^{33}-\frac{2}{12823741}a^{29}+\frac{255}{12823741}a^{27}-\frac{340}{1831963}a^{25}+\frac{14694}{12823741}a^{23}-\frac{10277}{12823741}a^{21}+\frac{12094}{1831963}a^{19}+\frac{51284}{12823741}a^{17}-\frac{9125}{12823741}a^{15}+\frac{70618}{1831963}a^{13}-\frac{834014}{12823741}a^{11}-\frac{474676}{12823741}a^{9}+\frac{97703}{1831963}a^{7}+\frac{3867729}{12823741}a^{5}+\frac{68682}{261709}a^{3}-\frac{1094}{5341}a$, $\frac{1}{686313794579}a^{34}-\frac{19890}{686313794579}a^{32}-\frac{45819}{686313794579}a^{30}+\frac{5876}{686313794579}a^{28}-\frac{113957209}{686313794579}a^{26}+\frac{135161525}{686313794579}a^{24}+\frac{64903026}{686313794579}a^{22}+\frac{1815319684}{686313794579}a^{20}+\frac{904338957}{686313794579}a^{18}+\frac{6515432227}{686313794579}a^{16}+\frac{3123289335}{686313794579}a^{14}+\frac{25923280105}{686313794579}a^{12}-\frac{10106665799}{686313794579}a^{10}+\frac{14261364695}{686313794579}a^{8}-\frac{138914368254}{686313794579}a^{6}-\frac{22900353157}{98044827797}a^{4}-\frac{567990517}{2000914853}a^{2}-\frac{13811668}{40834997}$, $\frac{1}{686313794579}a^{35}-\frac{19890}{686313794579}a^{33}+\frac{1100}{98044827797}a^{31}+\frac{166433}{686313794579}a^{29}-\frac{79116340}{686313794579}a^{27}+\frac{18582460}{98044827797}a^{25}-\frac{117873992}{98044827797}a^{23}+\frac{711650866}{686313794579}a^{21}+\frac{469617993}{98044827797}a^{19}+\frac{3879353882}{686313794579}a^{17}+\frac{626360390}{686313794579}a^{15}-\frac{5453698715}{98044827797}a^{13}+\frac{32896814043}{686313794579}a^{11}+\frac{19379600741}{686313794579}a^{9}-\frac{4106997927}{98044827797}a^{7}+\frac{164129491825}{686313794579}a^{5}-\frac{2481362025}{14006403971}a^{3}-\frac{138480015}{285844979}a$, $\frac{1}{20\!\cdots\!07}a^{36}+\frac{11\!\cdots\!41}{20\!\cdots\!07}a^{34}+\frac{24\!\cdots\!46}{20\!\cdots\!07}a^{32}-\frac{10\!\cdots\!46}{42\!\cdots\!77}a^{30}-\frac{44\!\cdots\!42}{20\!\cdots\!07}a^{28}+\frac{39\!\cdots\!22}{20\!\cdots\!07}a^{26}-\frac{27\!\cdots\!89}{29\!\cdots\!01}a^{24}+\frac{21\!\cdots\!04}{20\!\cdots\!07}a^{22}-\frac{18\!\cdots\!54}{20\!\cdots\!07}a^{20}-\frac{12\!\cdots\!25}{20\!\cdots\!07}a^{18}+\frac{15\!\cdots\!33}{20\!\cdots\!07}a^{16}-\frac{12\!\cdots\!10}{20\!\cdots\!07}a^{14}+\frac{12\!\cdots\!99}{20\!\cdots\!07}a^{12}-\frac{12\!\cdots\!95}{20\!\cdots\!07}a^{10}-\frac{11\!\cdots\!27}{20\!\cdots\!07}a^{8}+\frac{28\!\cdots\!75}{20\!\cdots\!07}a^{6}-\frac{12\!\cdots\!37}{42\!\cdots\!43}a^{4}+\frac{11\!\cdots\!80}{85\!\cdots\!07}a^{2}-\frac{69\!\cdots\!21}{17\!\cdots\!43}$, $\frac{1}{14\!\cdots\!49}a^{37}-\frac{48\!\cdots\!25}{14\!\cdots\!49}a^{35}-\frac{38\!\cdots\!41}{14\!\cdots\!49}a^{33}+\frac{38\!\cdots\!76}{14\!\cdots\!49}a^{31}-\frac{16\!\cdots\!47}{14\!\cdots\!49}a^{29}-\frac{28\!\cdots\!07}{14\!\cdots\!49}a^{27}-\frac{96\!\cdots\!50}{20\!\cdots\!07}a^{25}+\frac{91\!\cdots\!02}{14\!\cdots\!49}a^{23}-\frac{16\!\cdots\!61}{14\!\cdots\!49}a^{21}+\frac{10\!\cdots\!25}{14\!\cdots\!49}a^{19}+\frac{43\!\cdots\!87}{14\!\cdots\!49}a^{17}+\frac{87\!\cdots\!94}{13\!\cdots\!61}a^{15}-\frac{91\!\cdots\!21}{14\!\cdots\!49}a^{13}+\frac{45\!\cdots\!89}{14\!\cdots\!49}a^{11}-\frac{21\!\cdots\!66}{14\!\cdots\!49}a^{9}+\frac{96\!\cdots\!79}{14\!\cdots\!49}a^{7}+\frac{13\!\cdots\!31}{29\!\cdots\!01}a^{5}+\frac{97\!\cdots\!19}{60\!\cdots\!49}a^{3}-\frac{40\!\cdots\!90}{12\!\cdots\!01}a$
Monogenic: | No | |
Index: | Not computed | |
Inessential primes: | $7$ |
Class group and class number
not computed
Unit group
Rank: | $37$ | 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 38 |
The 38 conjugacy class representatives for $C_{38}$ |
Character table for $C_{38}$ |
Intermediate fields
\(\Q(\sqrt{191}) \), 19.19.114445997944945591651333831028437092270721.1 |
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 | $38$ | $19^{2}$ | ${\href{/padicField/7.1.0.1}{1} }^{38}$ | $19^{2}$ | $19^{2}$ | $19^{2}$ | $19^{2}$ | $38$ | $38$ | $19^{2}$ | $38$ | $38$ | $38$ | $19^{2}$ | $38$ | $38$ |
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 |
---|---|---|---|---|---|---|---|
\(2\) | Deg $38$ | $2$ | $19$ | $38$ | |||
\(191\) | Deg $38$ | $38$ | $1$ | $37$ |