Normalized defining polynomial
\( x^{18} - x^{17} + 13 x^{16} - 14 x^{15} + 102 x^{14} - 85 x^{13} + 597 x^{12} - 117 x^{11} + 2104 x^{10} + \cdots + 512 \)
Invariants
Degree: | $18$ | sage: K.degree()
gp: poldegree(K.pol)
magma: Degree(K);
oscar: degree(K)
| |
Signature: | $[0, 9]$ | sage: K.signature()
gp: K.sign
magma: Signature(K);
oscar: signature(K)
| |
Discriminant: | \(-500815330257541456373423140864\) \(\medspace = -\,2^{12}\cdot 7^{12}\cdot 37^{6}\cdot 151^{3}\) | sage: K.disc()
gp: K.disc
magma: OK := Integers(K); Discriminant(OK);
oscar: OK = ring_of_integers(K); discriminant(OK)
| |
Root discriminant: | \(44.67\) | 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: | $2^{2/3}7^{2/3}37^{1/2}151^{1/2}\approx 434.1848772346385$ | ||
Ramified primes: | \(2\), \(7\), \(37\), \(151\) | sage: K.disc().support()
gp: factor(abs(K.disc))[,1]~
magma: PrimeDivisors(Discriminant(OK));
oscar: prime_divisors(discriminant((OK)))
| |
Discriminant root field: | \(\Q(\sqrt{-151}) \) | ||
$\card{ \Aut(K/\Q) }$: | $6$ | sage: K.automorphisms()
magma: Automorphisms(K);
oscar: automorphisms(K)
| |
This field is not Galois over $\Q$. | |||
This is a CM field. | |||
Reflex fields: | unavailable$^{256}$ |
Integral basis (with respect to field generator \(a\))
$1$, $a$, $a^{2}$, $a^{3}$, $a^{4}$, $a^{5}$, $a^{6}$, $a^{7}$, $a^{8}$, $a^{9}$, $\frac{1}{2}a^{10}-\frac{1}{2}a^{9}-\frac{1}{2}a^{8}-\frac{1}{2}a^{5}-\frac{1}{2}a^{4}-\frac{1}{2}a^{3}-\frac{1}{2}a$, $\frac{1}{4}a^{11}-\frac{1}{4}a^{10}+\frac{1}{4}a^{9}-\frac{1}{2}a^{8}-\frac{1}{2}a^{7}-\frac{1}{4}a^{6}+\frac{1}{4}a^{5}-\frac{1}{4}a^{4}+\frac{1}{4}a^{2}-\frac{1}{2}a$, $\frac{1}{8}a^{12}-\frac{1}{8}a^{11}+\frac{1}{8}a^{10}-\frac{1}{4}a^{9}+\frac{1}{4}a^{8}+\frac{3}{8}a^{7}-\frac{3}{8}a^{6}-\frac{1}{8}a^{5}-\frac{1}{2}a^{4}+\frac{1}{8}a^{3}-\frac{1}{4}a^{2}$, $\frac{1}{16}a^{13}-\frac{1}{16}a^{12}+\frac{1}{16}a^{11}-\frac{1}{8}a^{10}-\frac{3}{8}a^{9}+\frac{3}{16}a^{8}-\frac{3}{16}a^{7}+\frac{7}{16}a^{6}-\frac{1}{4}a^{5}-\frac{7}{16}a^{4}+\frac{3}{8}a^{3}-\frac{1}{2}a^{2}-\frac{1}{2}a$, $\frac{1}{32}a^{14}-\frac{1}{32}a^{13}+\frac{1}{32}a^{12}-\frac{1}{16}a^{11}-\frac{3}{16}a^{10}+\frac{3}{32}a^{9}-\frac{3}{32}a^{8}+\frac{7}{32}a^{7}-\frac{1}{8}a^{6}-\frac{7}{32}a^{5}+\frac{3}{16}a^{4}-\frac{1}{4}a^{3}+\frac{1}{4}a^{2}$, $\frac{1}{64}a^{15}-\frac{1}{64}a^{14}+\frac{1}{64}a^{13}-\frac{1}{32}a^{12}-\frac{3}{32}a^{11}+\frac{3}{64}a^{10}+\frac{29}{64}a^{9}+\frac{7}{64}a^{8}+\frac{7}{16}a^{7}-\frac{7}{64}a^{6}-\frac{13}{32}a^{5}-\frac{1}{8}a^{4}+\frac{1}{8}a^{3}-\frac{1}{2}a^{2}-\frac{1}{2}a$, $\frac{1}{287550362752}a^{16}-\frac{1216518055}{287550362752}a^{15}+\frac{2146558727}{287550362752}a^{14}-\frac{951852075}{35943795344}a^{13}-\frac{8504579589}{143775181376}a^{12}+\frac{8587263223}{287550362752}a^{11}+\frac{34678346283}{287550362752}a^{10}-\frac{142371614759}{287550362752}a^{9}-\frac{20737833727}{143775181376}a^{8}-\frac{96064469151}{287550362752}a^{7}-\frac{4137684421}{8985948836}a^{6}-\frac{12506434987}{71887590688}a^{5}-\frac{10729229607}{35943795344}a^{4}+\frac{8235279129}{17971897672}a^{3}-\frac{137071648}{2246487209}a^{2}-\frac{766727092}{2246487209}a+\frac{710883531}{2246487209}$, $\frac{1}{20\!\cdots\!68}a^{17}+\frac{7637}{20\!\cdots\!68}a^{16}+\frac{174994411383535}{20\!\cdots\!68}a^{15}+\frac{80411312543755}{12\!\cdots\!48}a^{14}+\frac{18\!\cdots\!21}{10\!\cdots\!84}a^{13}-\frac{98\!\cdots\!41}{20\!\cdots\!68}a^{12}+\frac{23\!\cdots\!47}{20\!\cdots\!68}a^{11}-\frac{97\!\cdots\!51}{20\!\cdots\!68}a^{10}+\frac{25\!\cdots\!17}{10\!\cdots\!84}a^{9}+\frac{49\!\cdots\!85}{20\!\cdots\!68}a^{8}+\frac{15\!\cdots\!51}{51\!\cdots\!92}a^{7}-\frac{211745483471897}{12\!\cdots\!48}a^{6}+\frac{41\!\cdots\!93}{12\!\cdots\!48}a^{5}+\frac{73622921312185}{64\!\cdots\!24}a^{4}+\frac{245040351308309}{494388933059048}a^{3}+\frac{4622042421921}{16\!\cdots\!06}a^{2}-\frac{181438645946718}{803382016220953}a-\frac{276803381138847}{803382016220953}$
Monogenic: | Not computed | |
Index: | $1$ | |
Inessential primes: | None |
Class group and class number
$C_{171}$, which has order $171$ (assuming GRH)
Unit group
Rank: | $8$ | 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: | $\frac{25840562979}{10\!\cdots\!84}a^{17}-\frac{5461226003059}{10\!\cdots\!84}a^{16}+\frac{827692316187}{10\!\cdots\!84}a^{15}-\frac{2708667610187}{64\!\cdots\!24}a^{14}+\frac{5214667370691}{51\!\cdots\!92}a^{13}-\frac{254744296635461}{10\!\cdots\!84}a^{12}-\frac{88379998914689}{10\!\cdots\!84}a^{11}-\frac{12\!\cdots\!51}{10\!\cdots\!84}a^{10}-\frac{10\!\cdots\!63}{51\!\cdots\!92}a^{9}-\frac{25\!\cdots\!03}{10\!\cdots\!84}a^{8}-\frac{39383632937745}{12\!\cdots\!48}a^{7}-\frac{18\!\cdots\!03}{25\!\cdots\!96}a^{6}+\frac{21389693134535}{803382016220953}a^{5}-\frac{515326183723427}{12\!\cdots\!48}a^{4}+\frac{3779721535173}{247194466529524}a^{3}-\frac{24940145388497}{16\!\cdots\!06}a^{2}+\frac{3149510570169}{803382016220953}a-\frac{18\!\cdots\!27}{803382016220953}$, $\frac{55331379581}{20\!\cdots\!68}a^{17}-\frac{5065806506779}{20\!\cdots\!68}a^{16}+\frac{1257154646687}{20\!\cdots\!68}a^{15}-\frac{10063148891083}{51\!\cdots\!92}a^{14}+\frac{6335953721761}{10\!\cdots\!84}a^{13}-\frac{232663097392717}{20\!\cdots\!68}a^{12}-\frac{66622374795209}{20\!\cdots\!68}a^{11}-\frac{11\!\cdots\!11}{20\!\cdots\!68}a^{10}-\frac{897756466830033}{10\!\cdots\!84}a^{9}-\frac{22\!\cdots\!03}{20\!\cdots\!68}a^{8}-\frac{2984458763885}{32\!\cdots\!12}a^{7}-\frac{823647024842979}{25\!\cdots\!96}a^{6}+\frac{78193773748215}{64\!\cdots\!24}a^{5}-\frac{232201154692651}{12\!\cdots\!48}a^{4}+\frac{1714839071659}{247194466529524}a^{3}-\frac{11212138332661}{16\!\cdots\!06}a^{2}+\frac{1426562060637}{803382016220953}a-\frac{14\!\cdots\!09}{803382016220953}$, $\frac{59979479}{287550362752}a^{17}+\frac{608381043}{287550362752}a^{16}-\frac{1310211835}{287550362752}a^{15}+\frac{3883295411}{143775181376}a^{14}-\frac{6695345937}{143775181376}a^{13}+\frac{58356965535}{287550362752}a^{12}-\frac{78096865447}{287550362752}a^{11}+\frac{314035592443}{287550362752}a^{10}-\frac{41139443103}{71887590688}a^{9}+\frac{1050482169813}{287550362752}a^{8}-\frac{187275555653}{143775181376}a^{7}+\frac{179417058423}{17971897672}a^{6}-\frac{307511114929}{71887590688}a^{5}+\frac{163879246869}{8985948836}a^{4}-\frac{17850509627}{2246487209}a^{3}+\frac{10323135063}{2246487209}a^{2}-\frac{7493787577}{4492974418}a+\frac{5624286958}{2246487209}$, $\frac{348150628946461}{20\!\cdots\!68}a^{17}+\frac{352001072692589}{20\!\cdots\!68}a^{16}-\frac{45\!\cdots\!73}{20\!\cdots\!68}a^{15}+\frac{24\!\cdots\!33}{10\!\cdots\!84}a^{14}-\frac{18\!\cdots\!29}{10\!\cdots\!84}a^{13}+\frac{30\!\cdots\!81}{20\!\cdots\!68}a^{12}-\frac{21\!\cdots\!57}{20\!\cdots\!68}a^{11}+\frac{45\!\cdots\!53}{20\!\cdots\!68}a^{10}-\frac{18\!\cdots\!31}{51\!\cdots\!92}a^{9}+\frac{55\!\cdots\!23}{20\!\cdots\!68}a^{8}-\frac{10\!\cdots\!55}{10\!\cdots\!84}a^{7}+\frac{27\!\cdots\!89}{12\!\cdots\!48}a^{6}-\frac{24\!\cdots\!25}{12\!\cdots\!48}a^{5}+\frac{96\!\cdots\!25}{12\!\cdots\!48}a^{4}-\frac{12\!\cdots\!43}{123597233264762}a^{3}+\frac{31\!\cdots\!49}{803382016220953}a^{2}-\frac{12\!\cdots\!87}{803382016220953}a-\frac{734166606897153}{803382016220953}$, $\frac{87038569800021}{51\!\cdots\!92}a^{17}+\frac{183994665602743}{10\!\cdots\!84}a^{16}-\frac{22\!\cdots\!17}{10\!\cdots\!84}a^{15}+\frac{25\!\cdots\!91}{10\!\cdots\!84}a^{14}-\frac{563289018395471}{32\!\cdots\!12}a^{13}+\frac{38\!\cdots\!15}{25\!\cdots\!96}a^{12}-\frac{10\!\cdots\!35}{10\!\cdots\!84}a^{11}+\frac{24\!\cdots\!33}{10\!\cdots\!84}a^{10}-\frac{37\!\cdots\!03}{10\!\cdots\!84}a^{9}+\frac{78\!\cdots\!29}{25\!\cdots\!96}a^{8}-\frac{10\!\cdots\!75}{10\!\cdots\!84}a^{7}+\frac{14\!\cdots\!15}{64\!\cdots\!24}a^{6}-\frac{24\!\cdots\!15}{12\!\cdots\!48}a^{5}+\frac{96\!\cdots\!03}{12\!\cdots\!48}a^{4}-\frac{12\!\cdots\!59}{123597233264762}a^{3}+\frac{31\!\cdots\!28}{803382016220953}a^{2}-\frac{12\!\cdots\!93}{803382016220953}a+\frac{17\!\cdots\!30}{803382016220953}$, $\frac{10883051295375}{64\!\cdots\!24}a^{17}-\frac{173072213596625}{10\!\cdots\!84}a^{16}+\frac{22\!\cdots\!43}{10\!\cdots\!84}a^{15}-\frac{24\!\cdots\!07}{10\!\cdots\!84}a^{14}+\frac{45\!\cdots\!77}{25\!\cdots\!96}a^{13}-\frac{75\!\cdots\!69}{51\!\cdots\!92}a^{12}+\frac{10\!\cdots\!13}{10\!\cdots\!84}a^{11}-\frac{21\!\cdots\!31}{10\!\cdots\!84}a^{10}+\frac{37\!\cdots\!55}{10\!\cdots\!84}a^{9}-\frac{13\!\cdots\!55}{51\!\cdots\!92}a^{8}+\frac{10\!\cdots\!95}{10\!\cdots\!84}a^{7}-\frac{26\!\cdots\!27}{12\!\cdots\!48}a^{6}+\frac{24\!\cdots\!95}{12\!\cdots\!48}a^{5}-\frac{95\!\cdots\!49}{12\!\cdots\!48}a^{4}+\frac{627357510129993}{61798616632381}a^{3}-\frac{31\!\cdots\!31}{803382016220953}a^{2}+\frac{12\!\cdots\!55}{803382016220953}a+\frac{10\!\cdots\!71}{803382016220953}$, $\frac{348261291705623}{20\!\cdots\!68}a^{17}-\frac{362132685706147}{20\!\cdots\!68}a^{16}+\frac{45\!\cdots\!47}{20\!\cdots\!68}a^{15}-\frac{25\!\cdots\!65}{10\!\cdots\!84}a^{14}+\frac{18\!\cdots\!51}{10\!\cdots\!84}a^{13}-\frac{30\!\cdots\!15}{20\!\cdots\!68}a^{12}+\frac{21\!\cdots\!39}{20\!\cdots\!68}a^{11}-\frac{47\!\cdots\!75}{20\!\cdots\!68}a^{10}+\frac{93\!\cdots\!99}{25\!\cdots\!96}a^{9}-\frac{60\!\cdots\!29}{20\!\cdots\!68}a^{8}+\frac{10\!\cdots\!15}{10\!\cdots\!84}a^{7}-\frac{70\!\cdots\!17}{32\!\cdots\!12}a^{6}+\frac{24\!\cdots\!85}{12\!\cdots\!48}a^{5}-\frac{96\!\cdots\!27}{12\!\cdots\!48}a^{4}+\frac{628731150281701}{61798616632381}a^{3}-\frac{31\!\cdots\!10}{803382016220953}a^{2}+\frac{12\!\cdots\!61}{803382016220953}a-\frac{13\!\cdots\!12}{803382016220953}$, $\frac{348098947820503}{20\!\cdots\!68}a^{17}-\frac{362923524698707}{20\!\cdots\!68}a^{16}+\frac{45\!\cdots\!47}{20\!\cdots\!68}a^{15}-\frac{25\!\cdots\!25}{10\!\cdots\!84}a^{14}+\frac{18\!\cdots\!11}{10\!\cdots\!84}a^{13}-\frac{30\!\cdots\!03}{20\!\cdots\!68}a^{12}+\frac{21\!\cdots\!79}{20\!\cdots\!68}a^{11}-\frac{47\!\cdots\!55}{20\!\cdots\!68}a^{10}+\frac{29\!\cdots\!37}{803382016220953}a^{9}-\frac{60\!\cdots\!29}{20\!\cdots\!68}a^{8}+\frac{10\!\cdots\!95}{10\!\cdots\!84}a^{7}-\frac{56\!\cdots\!81}{25\!\cdots\!96}a^{6}+\frac{24\!\cdots\!85}{12\!\cdots\!48}a^{5}-\frac{60\!\cdots\!47}{803382016220953}a^{4}+\frac{25\!\cdots\!59}{247194466529524}a^{3}-\frac{62\!\cdots\!95}{16\!\cdots\!06}a^{2}+\frac{12\!\cdots\!56}{803382016220953}a-\frac{270609004882421}{803382016220953}$ (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: | \( 146431.64361735608 \) (assuming GRH) | sage: K.regulator()
gp: K.reg
magma: Regulator(K);
oscar: regulator(K)
|
Class number formula
\[ \begin{aligned}\lim_{s\to 1} (s-1)\zeta_K(s) =\mathstrut & \frac{2^{r_1}\cdot (2\pi)^{r_2}\cdot R\cdot h}{w\cdot\sqrt{|D|}}\cr \approx\mathstrut &\frac{2^{0}\cdot(2\pi)^{9}\cdot 146431.64361735608 \cdot 171}{2\cdot\sqrt{500815330257541456373423140864}}\cr\approx \mathstrut & 0.270010752922176 \end{aligned}\] (assuming GRH)
Galois group
$C_6\times S_4$ (as 18T61):
A solvable group of order 144 |
The 30 conjugacy class representatives for $C_6\times S_4$ |
Character table for $C_6\times S_4$ |
Intermediate fields
\(\Q(\zeta_{7})^+\), 3.3.148.1, 6.0.3307504.1, 9.9.381393587008.1 |
Fields in the database are given up to isomorphism. Isomorphic intermediate fields are shown with their multiplicities.
Sibling fields
Degree 18 sibling: | data not computed |
Degree 24 siblings: | data not computed |
Degree 36 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 | ${\href{/padicField/3.6.0.1}{6} }^{3}$ | ${\href{/padicField/5.6.0.1}{6} }^{2}{,}\,{\href{/padicField/5.3.0.1}{3} }^{2}$ | R | ${\href{/padicField/11.3.0.1}{3} }^{6}$ | ${\href{/padicField/13.4.0.1}{4} }^{3}{,}\,{\href{/padicField/13.1.0.1}{1} }^{6}$ | ${\href{/padicField/17.12.0.1}{12} }{,}\,{\href{/padicField/17.6.0.1}{6} }$ | ${\href{/padicField/19.12.0.1}{12} }{,}\,{\href{/padicField/19.6.0.1}{6} }$ | ${\href{/padicField/23.12.0.1}{12} }{,}\,{\href{/padicField/23.3.0.1}{3} }^{2}$ | ${\href{/padicField/29.4.0.1}{4} }^{3}{,}\,{\href{/padicField/29.2.0.1}{2} }^{3}$ | ${\href{/padicField/31.6.0.1}{6} }^{2}{,}\,{\href{/padicField/31.3.0.1}{3} }^{2}$ | R | ${\href{/padicField/41.6.0.1}{6} }^{3}$ | ${\href{/padicField/43.2.0.1}{2} }^{6}{,}\,{\href{/padicField/43.1.0.1}{1} }^{6}$ | ${\href{/padicField/47.3.0.1}{3} }^{6}$ | ${\href{/padicField/53.6.0.1}{6} }^{3}$ | ${\href{/padicField/59.6.0.1}{6} }^{2}{,}\,{\href{/padicField/59.3.0.1}{3} }^{2}$ |
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 |
---|---|---|---|---|---|---|---|
\(2\) | 2.9.6.1 | $x^{9} + 3 x^{7} + 9 x^{6} + 3 x^{5} - 26 x^{3} + 9 x^{2} - 27 x + 29$ | $3$ | $3$ | $6$ | $S_3\times C_3$ | $[\ ]_{3}^{6}$ |
2.9.6.1 | $x^{9} + 3 x^{7} + 9 x^{6} + 3 x^{5} - 26 x^{3} + 9 x^{2} - 27 x + 29$ | $3$ | $3$ | $6$ | $S_3\times C_3$ | $[\ ]_{3}^{6}$ | |
\(7\) | 7.18.12.1 | $x^{18} + 3 x^{16} + 57 x^{15} + 15 x^{14} + 90 x^{13} + 424 x^{12} - 921 x^{11} - 3090 x^{10} - 6496 x^{9} - 10560 x^{8} + 6912 x^{7} + 28033 x^{6} + 33237 x^{5} + 188463 x^{4} - 139476 x^{3} + 351552 x^{2} - 514905 x + 582014$ | $3$ | $6$ | $12$ | $C_6 \times C_3$ | $[\ ]_{3}^{6}$ |
\(37\) | 37.3.0.1 | $x^{3} + 6 x + 35$ | $1$ | $3$ | $0$ | $C_3$ | $[\ ]^{3}$ |
37.3.0.1 | $x^{3} + 6 x + 35$ | $1$ | $3$ | $0$ | $C_3$ | $[\ ]^{3}$ | |
37.12.6.1 | $x^{12} + 5550 x^{11} + 12834597 x^{10} + 15830089320 x^{9} + 10983311908793 x^{8} + 4064880121459160 x^{7} + 627211360763929855 x^{6} + 150784964321118570 x^{5} + 157305214180175641 x^{4} + 21952692460017249320 x^{3} + 5259154456776668411 x^{2} + 19105722471444557170 x + 2009397505586138476$ | $2$ | $6$ | $6$ | $C_6\times C_2$ | $[\ ]_{2}^{6}$ | |
\(151\) | 151.6.3.2 | $x^{6} + 455 x^{4} + 290 x^{3} + 68404 x^{2} - 131080 x + 3418525$ | $2$ | $3$ | $3$ | $C_6$ | $[\ ]_{2}^{3}$ |
151.6.0.1 | $x^{6} + 125 x^{3} + 18 x^{2} + 15 x + 6$ | $1$ | $6$ | $0$ | $C_6$ | $[\ ]^{6}$ | |
151.6.0.1 | $x^{6} + 125 x^{3} + 18 x^{2} + 15 x + 6$ | $1$ | $6$ | $0$ | $C_6$ | $[\ ]^{6}$ |